🌈 1. Different Colors of GoldGold comes in several colors because jewelers
mix pure gold with other metals (called alloys). Pure gold itself is
yellow, soft, and not practical for daily jewelry.
Gold ColorHow It’s MadeCommon UsesYellow GoldMixed with silver, copper, and sometimes zincTraditional jewelry, rings, chains
White GoldMixed with metals like palladium, nickel, or silver, and often plated with rhodiumModern rings, engagement rings, watches
Rose/Pink GoldMixed with copperTrendy jewelry, antique-style rings
Green GoldMixed with silver and sometimes cadmiumRare, antique-style jewelry
Black GoldMade via
oxidation or plating with black rhodium or rutheniumStatement rings, fashion jewelry💡
Tip: The color of gold does not affect its purity — it just changes its look.
🔹 2. What is gold Carat (Karat)?Gold purity is measured in
carats (K). This tells you
how much pure gold is in the alloy.
CaratPurity (%)Notes24K99.9%Pure gold — very soft, not ideal for jewelry22K91.6%Very common in india for traditional jewelry18K75%Popular worldwide for rings and watches14K58.5%Durable, common in the US for jewelry10K41.7%Very hard, budget-friendly, less gold content✅
Formula:Purity %=Carat24×100\text{Purity \%} = \frac{\text{Carat}}{24} \times 100Purity %=24Carat×100For example,
18K gold = 1824×100=75%\frac{18}{24} \times 100 = 75\%2418×100=75% pure gold.
💡 Quick Tips When Buying gold JewelryCheck the hallmark – It shows purity (22K, 18K, etc.).
Remember color vs. purity – A white, black, or green gold piece can still be 22K or 18K.
Alloy affects durability – More alloy = stronger but less pure.
Price depends on purity – 24K is most expensive; 14K is cheaper.
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