22K vs 18K Gold Jewellery — Which is Better?

If you are shopping for gold jewellery in India, the very first question a jeweller will ask is "22K or 18K?" — and many buyers freeze. The numbers "916" and "750" stamped inside ornaments can look equally official, the price difference can be confusing, and almost nobody explains why one grade is used for plain gold and the other for diamonds. The result? Buyers end up with the wrong karat for the wrong purpose — and lose money on resale.

This guide gives you a clear, side-by-side comparison of 22K vs 18K gold jewellery — exact purity, alloy composition, price difference, durability, resale value, gold-loan eligibility, making charges and the right use for each. By the end you will know exactly which karat to choose, how to verify it, and how to avoid the common mistakes that cost Indian jewellery buyers thousands of rupees every year.

Table of Contents

1. 22K vs 18K — The Core Difference at a Glance

The single most important thing to understand is that 22K and 18K are both genuine gold— they are just different purity grades designed for different purposes. "22K" means 22 out of 24 parts are gold (91.6%); "18K" means 18 out of 24 parts are gold (75%). The BIS hallmarking system writes these as fineness numbers "916" and "750" respectively. Here is the quick comparison:

2. The 916 vs 750 Purity Breakdown — Why the Alloy Mix Matters

The karat scale runs from 0 to 24, where 24K = 100% pure gold. Each karat equals 1/24th of the metal (about 4.166%). So:

Pure 24K gold is buttery soft — too soft to hold a stone or survive daily wear. So jewellers deliberately add alloy metals (copper, silver, zinc, palladium) to make the gold harder and more durable. The more alloy added, the lower the karat — but the stronger the metal. This is why the two grades have very different alloy compositions:

3. The Full 22K vs 18K Comparison Table

Here is the complete side-by-side comparison across every factor that matters to a jewellery buyer — purity, price, durability, resale, gold loan, making charges and more. This is the table to screenshot before you visit a jeweller.

4. Durability & Strength — Why 18K Wins for Diamonds

This is the single most important practical difference, and the one most buyers misunderstand. Pure 24K gold is so soft you can dent it with a fingernail. Adding alloy makes the metal progressively harder. 22K is hard enough for plain ornaments but still relatively soft; 18K, with three times as much alloy, is significantly harder and more scratch-resistant.

For a plain chain, bangle or ring, 22K is plenty durable — these pieces do not have to grip anything. But for a diamond or gemstone, the tiny gold prongs (or bezel) must hold the stone firmly for decades of bumps, knocks and daily wear. Soft 22K prongs slowly bend open; the stone loosens and can fall out. Harder 18K prongs stay tight. This is not marketing — it is metallurgy.

5. Price Difference — 22K vs 18K Live Rate & Worked Example

Because 22K contains more pure gold than 18K, it always costs more per gram — typically about 18–20% more at any given date. The rate for each is fixed every morning by the India Bullion & Jewellers Association (IBJA) based on international gold prices, the USD/INR rate, import duty and GST.

6. Which Should You Buy? — The Decision Matrix

This is the section that answers the question "22K or 18K — which is better for me?" in one glance. Match the jewellery type you are buying to the recommended karat:

7. Resale Value — 22K vs 18K When You Sell

Resale value is where the purity difference shows up most clearly. When you sell or exchange gold jewellery, the jeweller melts it, separates the pure gold, and pays you based on that day's 24K rate multiplied by the pure-gold weight of your piece (minus a small melting/refining charge, usually 2–4%).

8. Gold Loan Eligibility — 22K vs 18K as Collateral

Both 22K and 18K gold jewellery are accepted as collateral for gold loans by banks (SBI, HDFC, Canara) and NBFCs (Muthoot, Manappuram). The lender tests the purity, values your piece at that day's rate for the karat, and lends up to 75% of the gold value as LTV (Loan-to-Value), per RBI rules. 22K fetches a higher loan per gram because it holds more pure gold.

9. How to Tell Whether Your Jewellery is 22K or 18K

Before buying or selling, confirm the karat yourself. Three reliable methods, from quickest to most accurate:

10. 6 Costly Mistakes Buyers Make When Choosing 22K vs 18K

Frequently Asked Questions (FAQs)