How Many Carats in a Gram?

Quick Answer

There are 5 carats in a gram.

1 gram = 5 carats

Understanding the Conversion

One gram equals exactly 5 carats. The carat (ct) is the standard unit for measuring the weight of gemstones and diamonds. One carat equals 200 milligrams (0.2 grams). This definition was standardized internationally in 1907.

Formula

1 gram = 5 carats

Common Examples

DescriptionValue
A 1-carat diamond0.2 grams (200 mg)
A 2-carat diamond0.4 grams (400 mg)
A 5-carat diamond1 gram (1,000 mg)

Quick Reference Table

Use this table for quick conversions between gram and carats:

gramcarats
15
210
525
1050
25125
50250
100500

Frequently Asked Questions

How Many Carats in a Gram?

There are 5 carats in a gram. One gram equals exactly 5 carats. The carat (ct) is the standard unit for measuring the weight of gemstones and diamonds. One carat equals 200 milligrams (0.2 grams). This definition was standardized internationally in 1907.

What is the formula to convert gram to carats?

The formula is: 1 gram = 5 carats. To convert, multiply the number of grams by 5 to get the equivalent in carats.

How do I convert carats to gram?

To convert carats to gram, divide the number of carats by 5. For example, 25 carats equals 5 grams.

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