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Convert grams (g) to carats (ct) instantly with our accurate gemstone weight converter
1 gram (g) = 5 carats (ct)
Formula: ct = g ÷ 0.2 (or g × 5)
| Grams (g) | Carats (ct) |
|---|---|
| 0.1 | 0.5 |
| 0.2 | 1 |
| 0.4 | 2 |
| 0.6 | 3 |
| 1 | 5 |
| 2 | 10 |
| 5 | 25 |
| 10 | 50 |
| 20 | 100 |
| 40 | 200 |
| 100 | 500 |
| 200 | 1000 |
The gram is the base unit of mass in the metric system and is widely used worldwide for measuring small weights. One gram equals one-thousandth of a kilogram. In the jewelry and gemstone industry, grams provide a practical metric measurement for weighing precious metals and larger gemstones. While carats are the traditional standard for individual gemstones, grams are often used for bulk measurements, precious metal content, and scientific applications. The conversion between grams and carats is straightforward: one gram equals exactly five metric carats.
One gram equals exactly 5 carats. This conversion is based on the metric carat standard of 0.2 grams per carat.
Converting grams to carats is useful when dealing with gemstones, as the jewelry industry standard is to express gemstone weight in carats rather than grams.
Yes, the gram to carat conversion is universal and applies to all gemstones, from diamonds to emeralds to sapphires. One gram always equals 5 carats regardless of the stone type.
Both measurements can be equally accurate, as modern digital scales can measure both units precisely. The choice depends on industry standards and the specific application.
Gold weight is typically measured in grams or troy ounces, not carats. However, gold purity is measured in karats (kt), which is a different measurement indicating the proportion of pure gold in an alloy.
For valuable gemstones, measurements are typically precise to at least 0.01 carats (2 decimal places). High-value diamonds may be measured even more precisely.