This means that a loose radiant diamond will be priced lower on a per carat basis than most other diamond cuts.
Actual size 1 carat radiant cut diamond.
Face up size of this diamond is as you would expect of a 1ct radiant learn more.
The chart below gives you the weight and millimeter size conversions for the ideal radiant cut diamond.
In short all is ok this diamond looks its weight.
The surface area is 6 23x6 2mm.
Likewise the physical size of a 2 carat diamond 8 2mm diameter isn t twice as big as that of a 1 carat diamond 6 5mm diameter.
With that in mind check out our radiant cut diamond size chart to break down a radiants diamond s carat weight and millimeter size.
The surface area is 6 23x6 26mm.
31 74 mm which falls within the normal range for 1ct radiants a face up area is the area of the girdle plane and tells you how big the stone looks when viewed from the top as set in a ring.
Compared to 1 4ct radiant reference diamond see below this diamond is of adequate size when viewed from the top.
The ideal ratio for a radiant cut diamond produces a slightly rectangular shape.
Actual size of 6 5 6 5 3 92mm with 60 3 depth and a face up area of 33 18mm.
In fact the radiant cut diamond is one of the most affordable diamond shapes.
The diamond on the left is 1 00 carat and has a good cut.
The face up size of this 1 4 carat radiant 6 46 6 46 4 13mm is within the normal range for 1 4ct diamonds of this shape.
Compared to 1 5ct radiant reference diamond see below this diamond is of adequate size when viewed from the top.
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.
On the other hand the size of a 5 carat diamond is approximately 5 2mm.
The diamond on the right weighs in at 0 92 carats and has an excellent cut.
The importance of face up size.
The importance of face up size.
For example this 1 01 carat vs1 clarity h color radiant cut diamond from james allen costs 3 300.
Carat to mm chart actual size the following is a chart of actual diamond sizes from 0 25 to 10 carats with their corresponding face up dimensions in millimeters length width.
The face up size of this 1 5 carat radiant 6 61 6 61 4 23mm is within the normal range for 1 5ct diamonds of this shape.
In short all is ok this diamond looks its weight.
Even though the carat weight is 50 of a 1 carat stone it doesn t face up twice as small.
Check finger coverage of this 1 carat round cut diamond.