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Bookmark or Share- Diamond Carat Guide | Diamond Size Chart & Carat Size on HandA carat is synonymous with weight, not with the size of a diamond or other gemstone. For example, because of varying densities, a one-carat round diamond may measure 6.4mm, while a one-carat round sapphire might measure 6.0mm. Shape, cut, and depth also play a role in determining how big a carat appears.
- Carat vs. Karat: What's The Difference? | Merriam-WebsterWhat to Know. A carat is a unit of weight used to measure the size of a gemstone such as a diamond. A karat is a measurement indicating the proportion of gold in an alloy out of 24 parts, so 18K gold is 18/24 parts gold. However, the use of carat (in place of karat) to indicate the fineness of gold is also considered acceptable.
- Diamond Carat Weight, Value, and Size - International Gem SocietyThe nine major gemstones cut from the 3,106 carats rough Cullinan diamond, the largest gem-quality diamond ever found. Top: Cullinan II (317.4 cts), I (530.2 cts), and III (94.4 cts). Bottom: Cullinan VI (11.5 cts), VIII (6.8 cts), IV (63.6 cts), V (18.8 cts), VII (8.8 cts), and IX (4.39 cts).
- Diamond Carat: What Is Diamond Carat? | Tiffany & Co.What Is a Diamond Carat? Carat denotes the weight of a diamond, not the size. Tiffany measures diamonds to 1/1000th of a carat; one carat equals .20 grams. Tiffany diamonds are always cut to maximize beauty, not carat weight.
- DIAMOND CARAT WEIGHT - GIA 4CsWhile now you know what carat means, it’s also important to remember that a diamond’s value is determined using all of the 4Cs, and not just carat weight. This short video explains carat weight and shows how diamonds are weighed in GIA’s lab on an extremely precise electronic scale.
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