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Convert carats (ct) to grams (g) instantly with our accurate gemstone weight converter
1 carat (ct) = 0.2 grams (g)
Formula: g = ct × 0.2
| Carats (ct) | Grams (g) |
|---|---|
| 0.5 | 0.1 |
| 1 | 0.2 |
| 2 | 0.4 |
| 3 | 0.6 |
| 5 | 1 |
| 10 | 2 |
| 25 | 5 |
| 50 | 10 |
| 100 | 20 |
| 200 | 40 |
| 500 | 100 |
| 1000 | 200 |
The metric carat is the standard unit of weight for gemstones and pearls in the jewelry industry. One carat equals exactly 200 milligrams or 0.2 grams. The carat was standardized internationally in 1907 to ensure consistency in gemstone trading worldwide. The word "carat" derives from the carob seed, which was historically used as a reference weight for gemstones due to its uniform mass. Today, carats are used exclusively for measuring precious stones, while gold purity is measured separately using karat (with a 'k').
One carat equals exactly 0.2 grams or 200 milligrams. This is the internationally standardized metric carat.
No, carat (ct) measures gemstone weight, while karat (kt or k) measures gold purity. They are completely different measurements despite the similar spelling.
Carats provide a standardized, precise measurement for small, valuable gemstones. The carat system has been used for centuries in the jewelry trade and became internationally standardized in 1907.
A 1-carat diamond weighs exactly 0.2 grams or 200 milligrams, regardless of the type of gemstone.
The carat measurement originates from the carob seed, which was used historically as a reference weight because of its relatively uniform mass. The modern metric carat was standardized in 1907.
Yes, carats are the universal standard for measuring all gemstones and pearls, including diamonds, rubies, sapphires, emeralds, and other precious and semi-precious stones.