The term carat gold refers to the purity of gold, measured in karats (often abbreviated as K or kt)、

What Does Carat (Karat) Mean?
Carat (Karat) indicates the proportion of pure gold in an alloy (a mix of gold and other metals like copper, silver, or zinc).
Pure gold is 24K, meaning it is 99.9% gold (very soft and rarely used in jewelry).
Lower karat numbers mean less gold and more other metals (for durability and cost savings).

Common Gold Karat Levels:
| Karat (K) | Gold Purity (%) | Common Uses |

| 24K | 99.9% | Investment (bars, coins), rarely jewelry |
| 22K | 91.7% | Highend jewelry (common in India, Middle East) |
| 18K | 75% | Premium jewelry (durable yet high gold content) |
| 14K | 58.3% | Most popular for rings, necklaces (balance of durability & value) |
| 10K | 41.7% | Affordable jewelry (more durable, less gold) |

Key Differences:
24K Gold – Soft, rich yellow color, expensive, easily scratched.
18K Gold – Stronger, slightly less yellow, good for fine jewelry.
14K Gold – More durable, common in the U.S、and Europe.
10K Gold – Least pure, very hard, budgetfriendly.

Carat vs、Karat:
Carat (ct) – Measures gemstone weight (e.g., diamonds).
Karat (K) – Measures gold purity.

How to Check Gold Purity?
Look for hallmarks (e.g., 18K, 750 for 18K, 585 for 14K).
Acid tests or electronic testers (used by jewelers).

Would you like help identifying or valuing a gold item?