Carats to Grams Converter
Convert carats to grams
Frequently Asked Questions
How do I convert carats to grams?
1 carat = 0.2 grams. Multiply carats by 0.2 to get grams. A 2-carat diamond weighs 0.4 grams. The converter also shows milligrams (1 carat = 200 mg) and ounces for reference.
What is the difference between carat and karat?
Carat (ct) measures gemstone weight (1 ct = 0.2g). Karat (K or kt) measures gold purity (24K = pure gold, 18K = 75% gold). They are completely different units despite the similar spelling.
How big is a 1-carat diamond?
A 1-carat round brilliant diamond is approximately 6.5mm in diameter. Size varies with cut — a well-cut 1-carat stone may appear larger than a poorly cut one. Weight and visual size do not always correlate directly.
What is a point in diamond weight?
1 carat = 100 points. A 0.50 carat diamond is 50 points. A 0.25 carat diamond is 25 points (quarter carat). Points are used for precision when describing smaller diamonds. The converter handles points as well.
How does carat weight affect diamond price?
Price increases exponentially with carat weight due to rarity. A 2-carat diamond costs significantly more than twice the price of a 1-carat diamond of equal quality. Price jumps occur at popular sizes: 0.5, 1.0, 1.5, and 2.0 carats.