Compare Gold Purity Chart & Prices | 24K, 22K, 18K Gold Investment Guide

Are you looking to understand gold purity and check the latest gold prices in Africa? Our comprehensive Gold Purity Chart makes it easy to compare 24K, 22K, 18K, and 14K gold in terms of karat, fineness, and percentage purity. Whether you are buying investment-grade gold bullion, jewelry, or planning to trade gold, knowing the purity is essential for smart purchasing and maximum value.

At Gold Prices in Africa Limited, we provide high-quality gold of all purities across Africa and internationally. From 24K pure gold bars to 22K and 18K jewelry-grade gold, our certified gold meets the highest standards, ensuring authenticity, transparency, and competitive prices. With our live pricing updates and trusted supply network, clients can buy gold confidently while making informed investment or gifting decisions.

Explore our Gold Purity Chart today and see how each karat measures up in purity, value, and global standards.

What is Gold Purity? (Explained in Karats & Percentages)

Gold purity refers to the amount of pure gold contained in a piece of gold jewelry, coin, or bar compared to other metals (like copper, silver, zinc) mixed in.

• Pure gold is naturally soft, so it’s often alloyed with other metals for strength, durability, and sometimes to change its color.
• Purity is expressed in karats (K) or percentage (%).

1. Karats (K)

• 24K means 24 out of 24 parts are gold — 100% pure gold.
• 22K means 22 parts gold, 2 parts other metals — slightly less pure but more durable.
• The lower the karat number, the less pure gold and the more alloy metals.

2. Percentages (%)

• Each karat corresponds to a specific percentage of gold content.
• For example, 18K gold is 75% gold and 25% other metals.

Gold Purity Chart (24K, 22K, 18K, 14K, 10K

comparison)

Gold Purity Chart: Karats vs Percentages

Karat (K)	Gold %	Gold Content per Gram	Typical Use
24K	99.9% – 100%	1.000 g pure gold	Investment bars, coins
22K	91.6%	0.916 g pure gold	High-end jewelry, coins
18K	75.0%	0.750 g pure gold	Fine jewelry
14K	58.3%	0.583 g pure gold	Durable everyday jewelry
10K	41.7%	0.417 g pure gold	Budget jewelry (more durable, less gold)

 Tip for Buyers:

• Investors usually prefer 24K or 22K gold for resale and purity value.
• Everyday wearers may go for 18K or 14K to balance beauty, value, and durability.

Difference Between 24K, 22K, 18K, and 14K Gold

Here’s a clear, easy-to-digest breakdown of the differences between 24K, 22K, 18K, and 14K gold — so you can instantly see which type suits investment, jewelry, or daily wear.

1. 24K Gold – Purest Form

• Purity: 99.9% – 100% gold
• Color: Bright yellow, rich luster
• Durability: Soft and malleable, bends/scratches easily
• Best for: Investment bars, coins, and ceremonial pieces (not ideal for daily wear)
• Pros: Highest value, easy to resell
• Cons: Too soft for intricate jewelry designs, scratches quickly

2. 22K Gold – High Purity for Jewelry

• Purity: 91.6% gold, 8.4% alloy metals (usually copper, silver, or zinc)
• Color: Slightly less bright than 24K, but still rich yellow
• Durability: Stronger than 24K, suitable for jewelry that’s worn often
• Best for: High-end jewelry, wedding bands, luxury ornaments
• Pros: Excellent balance between purity and strength
• Cons: Still softer than lower-karat gold, delicate care required

3. 18K Gold – Luxury & Practicality

• Purity: 75% gold, 25% alloy metals
• Color: Slightly lighter than 22K; available in yellow, white, and rose tones
• Durability: Strong, scratch-resistant, suitable for frequent wear
• Best for: Fine jewelry, engagement rings, watches
• Pros: Good purity with high durability; holds value well
• Cons: Less pure than 22K and 24K, slightly lower resale value

4. 14K Gold – Durable & Affordable

• Purity: 58.3% gold, 41.7% alloy metals
• Color: Lighter yellow (or white/rose), less rich in tone than higher karats
• Durability: Very strong, perfect for everyday wear
• Best for: Budget-friendly jewelry, casual rings, bracelets, and chains
• Pros: Highly durable, affordable, resists scratches and bending
• Cons: Lower gold content, less value in resale

Note:

• 24K = Pure, soft, for investment.
• 22K = Almost pure, ideal for luxury jewelry.
• 18K = Luxury with durability.
• 14K = Affordable, tough for daily wear.

How to Read a Gold Purity Chart (Step-by-Step Guide)

1. Identify the Karat (K) Value
   • Look for numbers like 24K, 22K, 18K, 14K in the chart.
   • This shows how many parts of pure gold are in 24 total parts.
   • Example: 18K = 18/24 parts gold → 75% pure gold.
2. Check the Percentage (%) Purity
   • Next to the karat, you’ll see a % figure (e.g., 91.6% for 22K).
   • This tells you exactly how much of the piece is gold vs. alloy metals.
3. Look at the Weight Column (if included)
   • Many charts show how much pure gold is in a gram of each karat.
   • Example: 1g of 22K gold has 0.916g of pure gold.
4. Compare Uses & Applications
   • Good charts will indicate best uses (investment, daily wear, ceremonial jewelry).
   • Example: 24K is perfect for gold bars; 14K is great for everyday jewelry.
5. Match with Your Needs
   • If you want high resale value, focus on higher karats (22K, 24K).
   • If you want durability, lower karats like 14K or 18K are better.

Common Gold Purity Marks & Hallmarks

Gold items often carry stamped marks that tell you the purity and sometimes the origin. These are usually found on the inside of rings, clasps of chains, or edges of coins.

1. Karat Stamps (Common in USA & Asia)

• 24K = Pure gold
• 22K = 91.6% gold
• 18K = 75% gold
• 14K = 58.3% gold
• 10K = 41.7% gold

2. Fineness Numbers (Common in Europe & Middle East)

• 999 = 99.9% gold (24K)
• 916 = 91.6% gold (22K)
• 750 = 75% gold (18K)
• 585 = 58.5% gold (14K)
• 417 = 41.7% gold (10K)

3. Additional Hallmarks

• Assay Office Marks – Identifies where the gold was tested and certified.
• Maker’s Mark – Symbol or initials of the manufacturer.
• Country Marks – Some countries stamp their own national symbols (e.g., UK crown mark).

Pro Tip:
If you see a mark like “18K 750”, it means the same thing: 18K gold with 75% purity — just labeled in two different systems.

Got it — here’s a clear, well-structured explanation so readers can understand gold measurement terms and purity standards without confusion.

Gold Measurement & Standards

1. Karat vs Carat vs Purity

Term	Meaning	Common Use	Example
Karat (K)	Unit to measure gold purity (how much pure gold is in an alloy).	Jewelry, bullion	24K = 99.9% pure gold
Carat (ct)	Unit to measure gemstone weight, not gold purity.	Diamonds, gemstones	1 carat diamond = 0.2 grams
Purity (%)	Percentage of pure gold in a piece, calculated from karats.	International standard	18K = 75% pure gold

💡 Tip: Don’t confuse “karat” (gold purity) with “carat” (gem weight) — same pronunciation, different meanings.

2. Gold Purity in Percentage (Conversion Chart)

Karat (K)	Fineness (Parts per 1000)	Purity %
24K	999	99.9% – 100%
22K	916	91.6%
21K	875	87.5%
20K	833	83.3%
18K	750	75.0%
14K	585	58.5%
12K	500	50.0%
10K	417	41.7%
9K	375	37.5%

Quick Conversion Formula

To convert karats to percentage:

\text{Purity %} = \left(\frac{\text{Karat}}{24}\right) \times 100

Example:

18K=(1824)×100=75%\text{18K} = \left(\frac{18}{24}\right) \times 100 = 75\%

Tip for Buyers & Investors:

• Higher purity (22K–24K) = better for investment & resale.
• Lower purity (14K–18K) = stronger, better for everyday wear.

Alright — let’s go deep into fineness numbers, hallmarking, and international gold purity standards so buyers and investors can easily understand the differences worldwide.

Fineness Number Chart (999, 916, 750 Gold Explained)

Fineness numbers indicate how many parts per thousand are pure gold in an alloy. It’s another way to express purity, used widely in Europe, the Middle East, and for bullion bars.

Fineness Number	Equivalent Karat	Purity %	Description
999	24K	99.9%	Pure gold, used in investment bars & coins
958	23K	95.8%	High purity, rare in jewelry
916	22K	91.6%	Popular for jewelry in Asia & Middle East
875	21K	87.5%	Common in Middle East & Africa
833	20K	83.3%	Antique jewelry
750	18K	75.0%	Luxury jewelry, international standard
585	14K	58.5%	Durable everyday jewelry
417	10K	41.7%	Budget jewelry, minimum legal standard in US

Tip: If you see “750” stamped on a ring, it’s the same as 18K gold.

BIS Hallmarking Standards (India Example)

The BIS hallmark (Bureau of Indian Standards) is India’s official gold certification, guaranteeing the purity of gold jewelry.

A BIS Hallmark has 5 parts:

1. BIS Logo – Authenticity seal.
2. Purity/Fineness Mark – e.g., 916 (22K), 750 (18K).
3. Assaying & Hallmarking Centre’s Mark – Identifies the testing center.
4. Jeweler’s Identification Mark – Who made/sold it.
5. Year of Marking (optional) – A code for the year of certification.

Example:
A bangle marked BIS 916 means:

• BIS certified
• 91.6% purity (22K)
• Verified at an official assay center

International Gold Purity Standards

Gold standards differ by country — knowing them helps buyers avoid overpaying or buying under-purity gold.

Region/Country	Minimum Legal Purity for “Gold” Label	Common Hallmarking System
United States	10K (41.7%)	Karat stamp (10K, 14K, 18K)
United Kingdom	9K (37.5%)	Fineness (375, 585, 750, 916, 999) + Assay Office Mark
India	14K (58.5%)	BIS Hallmark (916, 750, etc.)
Middle East (e.g., UAE, Saudi Arabia)	18K (75%) for jewelry	Fineness stamp (916, 999, etc.)
Africa (varies by country)	Usually 224k, 18K and 22K	Often no formal hallmark; rely on dealer certification
European Union	9K or higher	Fineness number & hallmark

Important for Africa: In countries like Uganda, Ghana, Tanzania, gold purity is usually verified by private refineries or government-authorized assay offices before export — not always stamped on jewelry.

Here’s a clear and practical guide that combines both how to check gold purity and why it matters — perfect for educating gold buyers and building trust.

How to Check Gold Purity Before Buying

Before investing in gold jewelry or bullion, it’s important to confirm the purity to avoid overpaying or buying fake gold.

1. Look for Hallmarks or Stamps

• Check for karat markings (e.g., 22K, 18K) or fineness numbers (e.g., 916, 750).
• On jewelry, these are usually on clasps, inner bands, or tags.
• In India, look for BIS Hallmark, in the UK for Assay Office Marks, and in the US for Karat stamps.

2. Use an Acid Test

• Jewelers can apply a small drop of nitric acid to determine purity.
• Different acids react differently with gold alloys — revealing the karat.

3. Electronic Gold Testers

• Digital testers use electrical conductivity to measure gold content quickly.
• Useful for jewelers and serious buyers.

4. XRF (X-Ray Fluorescence) Testing

• A non-destructive method used by refineries and professional dealers.
• Gives an accurate breakdown of gold vs. alloy content in seconds.

5. Magnet Test (Quick Check)

• Pure gold is not magnetic.
• If a piece is attracted to a magnet, it may have other metals or be fake.
• Note: This is not a conclusive test, only a quick filter.

Why Gold Purity Matters in Jewelry Purchases

1. Value for Money
   • Higher purity gold = higher intrinsic value.
   • If you pay for 22K and get 18K, you’re losing both purity and resale value.
2. Resale & Investment Potential
   • Gold jewelry with accurate purity holds better resale value.
   • International buyers and gold traders often prefer 22K–24K.
3. Durability & Wearability
   • High-purity gold (24K) is soft and scratches easily.
   • Lower karat gold (14K–18K) is stronger for daily wear.
4. Cultural & Religious Importance
   • Many traditions require specific karats for weddings, gifts, or religious ceremonies.
5. Avoiding Fraud
   • Without checking purity, you risk buying under-karat gold or gold-plated items sold as solid gold.

Note:
Always request a written purity certificate or official hallmark from a trusted source. If buying in Africa, ensure the dealer is licensed and can provide an assay report before payment.

Here’s a complete breakdown combining investment advice, testing methods, and how to spot fake gold using a purity chart — written so even a first-time gold buyer can understand and use it.

Gold Purity vs Resale Value – Which is Best for Investment?

The higher the purity, the more valuable the gold. However, for investment, the best choice depends on your goals:

Purity	Karat	Pros for Investment	Cons
24K (99.9%)	Pure gold	Highest resale value, globally recognized	Soft, scratches easily, not great for daily wear
22K (91.6%)	High purity	Excellent resale value, widely accepted in Asia & Middle East	Slightly lower than 24K in value
18K (75%)	Balanced	Durable, holds good value	Lower resale value than 22K & 24K
14K (58.5%)	Durable	Affordable entry point	Much lower resale value

 Best for Investment:

• Gold bars & coins in 24K for maximum return.
• 22K jewelry if you want both wearability and high resale potential.

 Gold Purity Testing Methods

a) Acid Test

• Uses nitric acid and a touchstone to compare reaction results with known karats.
• Inexpensive, accurate for quick testing.
•  Can leave small marks on jewelry.

b) Electronic Test

• Uses electrical conductivity to measure gold content.
• Fast, non-destructive, but accuracy depends on calibration.

c) XRF Machine (X-Ray Fluorescence)

• Professional, non-destructive, gives a full metal composition.
• Used by refineries, banks, and licensed dealers.
• Highly accurate but expensive equipment.

 Spotting Fake Gold Using a Purity Chart

A Gold Purity Chart helps verify if weight, karat, and markings match.

Steps:

1. Check Hallmark or Stamp: Should match chart values (e.g., 916 for 22K).
2. Weigh the Gold: Compare against expected weight for that karat.
3. Color Test:
   • 24K = deep yellow
   • 18K = slightly pale yellow
   • Fake gold = overly shiny or dull.
4. Magnet Test: Gold is not magnetic — if it sticks, it’s likely fake.
5. Compare with Chart: If stamped as 22K (91.6%) but tests show 75% purity, it’s under-karat or fake.

Pro Tip for Buyers in Africa:
Always request an assay report before paying for gold — especially in Uganda, Ghana, and Tanzania — where private assay offices verify purity before export.

Here’s a clear investment-focused explanation so buyers can decide between 24K and 22K gold, plus how purity changes the price per gram.

Which Gold Purity is Best for Investment? (24K vs 22K)

1 24K Gold – Pure Investment Gold

• Purity: 99.9% pure (fineness 999)
• Best Form: Bars, coins, bullion
• Pros:
  • Highest purity & resale value worldwide
  • Easy to sell internationally
  • Preferred by central banks & serious investors
• Cons:
  • Soft, bends easily — not ideal for daily wear
  • Slightly higher price than 22K

Best for: Long-term holding & resale in international markets.

2 22K Gold – High Purity with Durability

• Purity: 91.6% pure (fineness 916)
• Best Form: Jewelry, coins
• Pros:
  • Great resale value, especially in Asia & Middle East
  • Stronger than 24K, better for jewelry that’s worn
  • Slightly cheaper than 24K, easier to buy in bulk
• Cons:
  • Slightly lower gold content, so resale is a bit less than 24K

Best for: Investors who want both wearability and resale potential.

 Investment Verdict:

• If you want maximum returns, go for 24K bars or coins.
• If you want usable gold that you can also wear, choose 22K jewelry.

How Gold Purity Affects Price Per Gram

Gold prices are set per gram for pure gold (24K). Lower purity means less gold in each gram, so the price drops proportionally.

Formula:

Price per gram=24K Price ×Purity %\text{Price per gram} = \text{24K Price} \times \text{Purity \%}

Example (if 24K = $70/gram):

Purity	Karat	% Gold	Price/Gram
24K	Pure	99.9%	$70.00
22K	91.6%	91.6%	$64.12
18K	75%	75%	$52.50
14K	58.5%	58.5%	$40.95

Note: This doesn’t include making charges, taxes, or dealer premiums, which can raise the final price.

Gold Purity Chart with Live Price Updates

Live Gold Purity Chart – Updated in Real Time

Karat (K)	Purity %	Fineness Number	Price per Gram	Price per Ounce
24K	99.9%	999	$70.00	$2,177.00
22K	91.6%	916	$64.12	$1,993.80
18K	75%	750	$52.50	$1,631.00
14K	58.5%	585	$40.95	$1,272.30
10K	41.7%	417	$29.19	$907.50

Note: Data pulled via a live gold price API (e.g., Metals-API, GoldAPI.io) and recalculated automatically for each karat.

Here’s a detailed breakdown for “Investing in Bullion vs Jewelry (Purity Comparisons)” so you can cover both investment insight and gold purity differences clearly.

Investing in Bullion vs Jewelry: Purity Comparisons

When it comes to gold investment, one of the first decisions you need to make is whether to buy gold bullion or gold jewelry. While both hold intrinsic value, their purity levels, pricing, and resale potential differ greatly.

1. Gold Bullion – Purity & Investment Value

• Typical Purity:
  • 24K gold bullion is the standard for investment (99.9% pure or 999 fineness).
  • Some bullion bars may have 99.99% purity (called “four nines”).
• Forms: Bars, ingots, and coins.
• Advantages:
  • Highest gold content per gram.
  • Easy to calculate value using live market rates.
  • Low making charges compared to jewelry.
  • Widely recognized and accepted globally.
• Disadvantages:
  • Not wearable.
  • Requires safe storage.

Ideal For: Long-term investors focused purely on gold value appreciation.

2. Gold Jewelry – Purity & Investment Value

• Typical Purity:
  • 22K (91.6% pure) is common for high-quality jewelry.
  • 18K (75% pure) or 14K (58.5% pure) is often used for durability and gemstone setting.
• Advantages:
  • Wearable and aesthetic value.
  • Can serve as both adornment and store of wealth.
  • Sentimental value in heirloom pieces.
• Disadvantages:
  • High making charges (labor, design costs) which are not recovered upon resale.
  • Purity is often lower than bullion.
  • Resale value may be significantly less than the purchase price.

Ideal For: Buyers who want both investment and usability.

 Purity Comparison Table

Type	Karat	Purity %	Fineness	Best For
Bullion Bars	24K	99.9%	999	Pure investment & wealth storage
Gold Coins	24K / 22K	99.9% / 91.6%	999 / 916	Investment & limited collectibility
Jewelry (Luxury)	22K	91.6%	916	Wearable investment
Jewelry (Daily)	18K	75%	750	Durability with elegance
Fashion Jewelry	14K	58.5%	585	Style over investment value

 Key Takeaways for Investors

• If your primary goal is profit & liquidity, 24K bullion is your best choice.
• If you value usability, culture, or aesthetics, 22K jewelry offers a blend of beauty and investment.
• Always check live gold purity charts before buying to ensure you pay a fair price.
• Keep in mind: The higher the purity, the more directly it follows global gold prices.

 Gold Purity Standards in Africa

Purity standards in Africa vary by country, often influenced by local regulations, cultural preferences, and the gold trade market.

Country	Common Purity / Karat	Notes
Kenya	21K – 22K (87.5% – 91.6%)	Popular for high-quality jewelry; urban centers follow international fineness numbers.
Uganda	22K (91.6%)	Most jewelry and bullion are 22K; exported gold often assayed by licensed refineries.
Congo (DRC)	20K – 22K	Local jewelry often lower purity; exported gold is usually assayed for 22K+.
Ghana	22K (91.6%)	Standard for jewelry and bullion; culturally preferred for weddings and gifts.
South Africa	18K – 22K	Jewelry ranges from 18K for durability to 22K for luxury pieces; bullion usually 24K.

Tip: In Africa, always request a purity certificate or assay report, especially for exported or investment-grade gold.

 Middle Eastern Gold Purity – 22K Jewelry Tradition

• Preferred Purity: 22K (91.6% pure gold)
• Why 22K?
  • Offers rich, deep yellow color highly valued culturally.
  • Strong enough to handle intricate jewelry designs while still high in gold content.
• Usage:
  • Engagement rings, bangles, necklaces, coins, and traditional jewelry.
  • 24K gold is mostly reserved for bullion, not wearable jewelry.
• Market Impact:
  • Dubai, Saudi Arabia, and UAE markets often use 916 stamped 22K gold for daily jewelry and investment pieces.

Western Gold Jewelry Standards – 14K & 18K Popularity

Region	Popular Karats	Reason for Popularity
United States	14K & 18K	Durability for daily wear; lower gold content keeps cost affordable.
United Kingdom	9K, 14K, 18K	Assay office regulations; 18K used in luxury jewelry, 14K common for general use.
Europe (France, Germany)	14K – 18K	Balance between elegance and hardness; 24K rarely used in jewelry.

Key Notes:

• Lower karats in the West make jewelry resistant to scratches and deformation, ideal for daily wear.
• Investment value is slightly lower than 22K–24K gold but compensated by wearability and design variety.

Summary Table – Global Gold Purity Trends

Region	Preferred Karat	Use Case
Africa	22K (91.6%)	Jewelry & bullion
Middle East	22K (91.6%)	Traditional jewelry
Western Countries	14K – 18K	Durable, daily-wear jewelry
Global Bullion	24K (99.9%)	Investment bars & coins

Takeaway:

• Investment focus: 24K bars or coins worldwide.
• Cultural & jewelry focus: 22K in Africa & Middle East, 14K–18K in Western markets.

Asian Gold Purity Preferences – 24K in China & India

China

• Preferred Purity: 24K (99.9% pure) for investment and gifting.
• Usage:
  • Investment gold bars and coins.
  • Wedding gifts, festivals, and special occasions.
• Cultural Preference:
  • Bright yellow 24K symbolizes wealth and prosperity.
  • Jewelry is often high-purity, but sometimes alloyed slightly for durability in wearable pieces.

India

• Preferred Purity: 22K (91.6% pure) for jewelry; 24K (99.9%) for bullion.
• Usage:
  • 22K jewelry is widely used in weddings, religious events, and dowries.
  • 24K gold is mostly for bullion investment and savings.
• Cultural Preference:
  • 22K jewelry balances purity and durability, suitable for intricate designs and daily wear.
  • Gold is considered a safe investment and wealth storage.

Key Insight:

• In Asia, cultural and ceremonial factors heavily influence gold purity preferences, not just investment value.

 Traditional vs Modern Purity Standards Globally

Aspect	Traditional Purity	Modern Standard
Asia (India, China, Middle East)	22K for jewelry, 24K for investment	24K gold bars/coins widely accepted for trading
Africa	22K – cultural jewelry & local markets	24K bullion for export & investment
Western Countries	9K – 18K for jewelry, regulated by local assay offices	14K–18K remains popular; 24K rare due to softness
Global Bullion	Rarely affected by local tradition	24K (999 fineness) is universal for bars, coins, ETFs
Investment Purity Focus	Jewelry may be lower karat	24K is standard for maximum resale value

Observations:

• Traditional jewelry standards prioritize cultural practices, aesthetics, and wearability.
• Modern standards for gold investment focus purely on purity, liquidity, and international market acceptance.
• Investors worldwide now differentiate between bullion investment (24K) and jewelry purchase (region-specific karats).

Takeaways

1. 24K = universal investment purity.
2. 22K = gold jewelry preference in Asia and Africa.
3. 14K–18K = Western jewelry standard for durability and cost-efficiency.
4. Global buyers should understand both traditional and modern standards to make smart purchases.