The 23-cent diamond ring is 0.23 carat, and the jewelry industry is used to using "carat" to represent the weight of the diamond. In actual sales, 1 carat is also divided into 100 pieces, and each piece is counted as "point". 1 carat = 1ct= 100 min = 0.2g Used to calculate finer gems. Because the density of gems is basically the same, the heavier the gem, the bigger the volume. The bigger the gem, the rarer it is, and the higher the value per carat.

As for the size of a 23-cent diamond, take a round diamond as an example: the standard diameter of a 20-cent diamond is 3.8 mm, the standard height is 2.3 mm, the standard diameter of a 25-cent diamond is 4. 1 mm and the standard height is 2.5 mm, so the standard diameter of a 23-cent diamond ring should be 3.8-4. 1 mm and the standard height should be 2.3-2. ..