Carat weight: 0.9 ct.
Diamond carat weight is the measurement of how much a diamond weighs.
A metric "carat" is defined as 200 milligrams.
your diamond 0.9ct.
0.86 Carat Round Loose Diamond, H, SI1Very Good, GIA Certified
0.88 Carat Round Loose Diamond, E, SI2Good, GIA Certified