The phrase indicates that diamond(s) with a weight of 68 carats is the topic at hand.
0.25 means its the carat of diamond,meaning you have quarter of carat real diamond
What you have is worth whatever someone will pay you for it. If you mean .01 carat of a diamond, then its value is lower than if you mean 1.00 carat diamond. The lowest price today on Blue Nile for a 1.00 carat diamond is US$2,151. The lowest carat weight you can purchase there weighs .24 carats.
The notation '1.64 carat' means that the diamond weighs 1.64 carats.
A carat is a unit of weight used for gemstones. One third carat is the weight of the diamond.
The descriptor '.45' usually documents the carat weight of a diamond: meaning 45/100ths of a carat, or nearly half a carat.
it means that the diamond is 0.33 carat
The carat defines the standard unit of weight measurement of a diamond.
Both versions of the description you give, 20 point and 0.2 carat mean that the stone is roughly one-fifth of a carat in weight.
The number inside a diamond ring refers to the carat weight of the diamonds found in the ring. A .50 stamped inside a Diamond Solitaire ring means that it has a 1/2 Carat diamond while a .97 means that it is just below 100 points or One Full Carat.
Carat is the measurement of a diamond's weight. The stone's value would partially depend on its carat weight.
A one carat diamond weighs one carat and contains one carat.
A two-carat diamond is a gemstone that weighs two carats.