Gold Purity & Weight Guide
Understand the relationship between karats, millesimal fineness numbers, and traditional weight measurements like tolas, grams, and troy ounces before buying or selling jewellery or bullion.
Gold Purity, Karat & Weight Explained
Understanding gold purity and weight is essential when buying or selling gold. Purity determines how much actual gold is present in an item and directly affects its market value, appearance, and durability.
The purity of gold determines how much actual gold is present in an item compared with other metals. It can affect the item's market value, appearance, durability, and suitability for different purposes. Pure gold is commonly described as 24-karat gold — it contains a very high proportion of gold and has a naturally bright yellow appearance.
“Gold purity can also be expressed using a fineness number. For example, 999 or 999.9 indicates very high-purity gold, while 750 generally represents 75% gold. These markings can help buyers identify the approximate gold content of an item, although authenticity should also be verified through reliable testing or documentation.”
The value of a gold item is generally influenced by its weight and purity, along with the current market price. Jewelry may also include additional costs for craftsmanship, design, gemstones, branding, and retail margins. When selling gold, buyers calculate value based on actual gold content rather than the original retail price.
🥇 Karat Purity Comparison
Naturally bright yellow. Very high purity but relatively soft — less practical for everyday jewelry. Preferred for investment bars and coins.
Gold content
Commonly used in traditional and bridal jewelry. Slightly harder than 24K while retaining a rich gold color. Popular in South Asian markets.
Gold content
Contains 75% gold. Widely used for fine jewelry — balances high gold content with durability. Available in yellow, white, and rose gold tones.
Gold content
Contains 58.5% gold. Harder and more resistant to everyday wear. A popular choice for frequently worn jewelry items in many markets.
Gold content
Contains 41.7% gold. Provides the most strength due to higher proportion of other metals. Common in markets where affordability is a priority.
Gold content
⚖️ Gold Weight Units Explained
The most universally understood weight unit. Widely used for retail gold transactions, jewelry pricing, and small purchases worldwide.
The standard unit in global precious-metal markets. 1 troy ounce equals approximately 31.1 grams. Used for international gold price benchmarking.
Widely used in Pakistan, India, and other South Asian markets. 1 tola equals approximately 11.66 grams. Common in local jewelry and bullion trade.
Used for large-scale transactions, central bank reserves, and institutional purchases. 1 kilogram equals 1,000 grams or approximately 32.15 troy ounces.
📋 What to Check When Buying or Selling Gold
Check the hallmark or purity marking on the item
Ask for documentation showing weight and purity
Purchase from established and reputable sellers
Understand that jewelry resale may not reflect original retail price
Two items of the same weight can have different gold values if purity differs
Use our gold calculator to estimate value based on purity and weight
Know What You're Buying or Selling
Understanding karats, fineness, and weight makes it easier to compare gold products and prices, and helps you avoid confusion when different sellers use different measurement systems. Current market prices, product premiums, workmanship, taxes, and dealer margins can all influence the final buying or selling price. Check purity, weight, and live market rates to make more informed gold-related decisions.
Frequently Asked Questions
Common questions about gold prices worldwide and how to use our tools.