Grams to Carats

Convert grams to carats quickly. Free online gram to carat converter for gemstones and precious materials.

The Grams to Carats converter transforms standard metric weights into the carat measurements used in the gemstone and jewelry industry. This tool is valuable for jewelers, gemologists, and collectors who need to express weights in the industry-standard carat unit. Whether appraising gemstones, purchasing loose stones, or documenting collections, convert gram weights to carats instantly and accurately.

Converter

5

Formula: carat = g ÷ 0.2 (or g × 5)

Common use cases

  • Converting scale measurements to gem industry standards
  • Gemstone certification and documentation
  • Jewelry inventory management
  • Precious stone trading and valuation
  • Gemological laboratory work

How to use

  1. Input the weight in grams
  2. See the carat equivalent immediately
  3. Use precise decimal gram values
  4. Copy results for gemstone records
  5. Reset for additional conversions

FAQ

How many carats are in a gram?

One gram equals exactly 5 carats.

Why convert grams to carats?

The gem and jewelry industry uses carats as the standard weight unit, so gram measurements need conversion for proper valuation and trading.

What is a carat in milligrams?

One carat equals 200 milligrams, making conversions between these units straightforward.

Is this accurate for diamond certification?

Yes, our converter uses the exact metric carat definition (0.2 g) used by gemological laboratories worldwide.