Carat weight: 1.31 ct.
Diamond carat weight is the measurement of how much a diamond weighs.
A metric "carat" is defined as 200 milligrams.
your diamond 1.31ct.
1.29 Carat Oval Loose Diamond, I, SI2, NONE Certified
1.31 Carat Oval Loose Diamond, G, SI2, NONE Certified