1 carat = 6.5 mm
At the girdle, this stone would measure about 6.5 mm.
1 carat = 100 cents = 6.5 mm = solitaire
1 grain is equal to 0.323 Carat (int) 1 carat (int) is equal to 3.086 Grain
1 carat is 0.2g, so 1/2 of a carat equates to a 0.1g gemstone.
1 carat = 6.5 mm
At the girdle, this stone would measure about 6.5 mm.
1 carat = 100 cents = 6.5 mm = solitaire
A half carat diamond of this cut measures 5.2 mm at the girdle; a .65 carat diamond measures 5.6 mm at the girdle. A certified gemologist can give you the exact carat weight of your diamond.
A four-carat round cut diamond measures about 10mm at the girdle. Different cuts would have various mm measurements for each weight.
Depends on the cut shape, but for round diamonds 1 carat is 6.5 mm across. Also 1 carat weighs 200 milligrams
1 grain is equal to 0.323 Carat (int) 1 carat (int) is equal to 3.086 Grain
A 1.75 carat diamond billiant cut is about 7.8 mm and a 2.00 carat stone is about 8.2 mm at the girdle. In order to know the exact carat weight of a stone, one must take it to a certified gemologist and ask that it be removed from its setting and weighed.
Depends on the cut. Carat is a measure of weight, not length, width, depth, area, or volume. What you are asking is kind of like asking how many inches is a pound of lead.Another AnswerIf the quarter carat diamond is a round cut, its mm measurement at the girdle is 4.1. If the cut is a different cut, see the answer, above.
A round brilliant cut gem of that weight measures in the 6.5mm range at the girdle.
1 carat is 0.2g, so 1/2 of a carat equates to a 0.1g gemstone.
It depends on the shape. For e.g. a 1 carat round brilliant diamond has a width of 6,5 mm. Other shapes, such as a marquise diamond is cut to be a longer shape. A one carat marquise diamond would be about 10 mm x 4,75 mm. Oval, pear and emerald along with the marquise shape visually appear larger than the round and square shapes.