9K vs 14K vs 18K vs 22K Gold: Complete Guide for Diamond Jewellery (2026)
You’ve picked the perfect diamond. You’ve decided between natural and lab-grown. And then the jeweller asks: “9K, 14K, 18K, or 22K?” Suddenly you’re stuck. Most people know gold purity matters—they just don’t know why, or which one is actually right for their piece. This gold karat guide breaks down 9K, 14K, 18K, and 22K gold in plain, simple terms, so you never have to just nod and hope you picked right. Quick Gold Karat Chart (India) Karat Purity Hallmark Stamp Best For 24K 99.9% pure gold 999 Coins, bars (not jewellery) 22K 91.6% pure gold 916 Traditional gold jewellery 18K

