Gold Purity Calculator
Find out how much pure gold is in a piece of jewellery and what that gold is worth at today's Chennai rate.
Carat, purity and today's price per gram
| Carat | Gold in it | Hallmark number | Price per gram |
|---|---|---|---|
| 24K | 99.9% | 999 | ₹13,888 |
| 23K | 95.8% | 958 | ₹13,309 |
| 22K | 91.6% | 916 | ₹12,731 |
| 20K | 83.3% | 833 | ₹11,573 |
| 18K | 75.0% | 750 | ₹10,416 |
| 14K | 58.5% | 585 | ₹8,101 |
How it works
Carat tells you how many parts out of 24 are pure gold. 22 carat means 22 parts gold and 2 parts other metals, which is 91.6%. So a 10-gram 22K chain contains about 9.16 grams of pure gold.
The hallmark number (like 916) is the same purity in parts per thousand. Look for it on the BIS hallmark: how to read a hallmark.
When you sell old gold, shops pay for this pure gold content, not for the making charges. Read selling or exchanging old gold.