Understanding the 4 c s of a diamond color cut carat clarity and the factors that impact its quality price and value.
Actual size 3 carat emerald cut diamond.
The importance of face up size.
There are also so many factors that go into a great diamond all of which are summed up in the stone s overall grade.
The opal with an sg of 2 15 will only weigh 0 61 carats.
To clarify we worked with landau to bring you this visual guide to diamond carat size.
The diamond with an sg of 3 52 will weigh 1 carat.
The face up size of this 3 carat emerald 9 64 7 14 4 64mm is within the normal range for 3ct diamonds of this shape.
The diamond on the right weighs in at 0 92 carats and has an excellent cut.
The diamond on the left is 1 00 carat and has a good cut.
For example a 6 5 mm round diamond sapphire and opal all cut in the same proportions will all weigh different.
Compared to 3 5ct emerald reference diamond see below this diamond is of adequate size when viewed from the top.
The face up size of this 1 carat emerald 6 68 4 95 3 22mm is within the normal range for 1ct diamonds of this shape.
As you can see from the diamond size comparison above a 3 00 carat diamond would have a diameter of 9 00 mm compared to the 7 50 mm diameter a 1 50 carat diamond has.
A 3 carat diamond is quite the.
Which means that a one carat round stone will look infinitely different than an emerald cut rock.
Compared to 1ct emerald reference diamond see below this diamond is of adequate size when viewed from the top.
The sapphire with an sg of 4 will weigh 1 14 carats.
The importance of face up size.
So even though the two diamonds have different carat sizes they have the same surface area because of the poorer cut of the first one about 10 of the carat weight is wasted.
The surface area is 6 23x6 26mm.
In short all is ok this diamond looks its weight.
Also most people have misconceptions that a diamond of 3 00 carats would be twice as big as another stone of 1 50 carats.
Carat to mm chart actual size the following is a chart of actual emerald sizes from 0 25 to 10 carats with their corresponding face up dimensions in millimeters length width.
In short all is ok this diamond looks its weight.
The stones presented here have a length to width ratio of 1 35 but this could be anything between 1 25 and 1 65.
The surface area is 6 23x6 2mm.