If the diamond is a round brilliant cut, it's slightly larger than 16.3MM, which is the measurement of a diamond weighing 15 carats.
Chat with our AI personalities
Round brilliant 16 ct diamond has a measurement of 15.94-16.01x9.63 approx. And a pear shape has a measurement of 23.60x13.64x8.09.
You've given the carat weight of a diamond. 'Big', then, is based on the cut of the stone.
A one-third carat diamond weighs one-third of a carat. If the stone is a round brilliant cut stone, it's diameter measurement at the girdle will be about 4.4mm.
0.25 means its the carat of diamond,meaning you have quarter of carat real diamond
Every diamond is valued by its cut, colour, clarity and carat weight. A diamond this large is rare: you may be able to find a comparable carat weight diamond in an auction catalog from Sothebys or Christies.
A carat, in relation to diamonds, is a unite of mass that is equal to 0.2 grams. Meaning a 4 carat diamond weighs just over .8 grams and an 8 carat diamond is 1.6 grams.