Use our diamond size chart to understand the millimeter mm size of each diamond shape.
Actual size 90 carat diamond.
If the size is wrong simply send in your ring within 90 days of your purchase and we will resize or remake the ring for free.
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.
For example selecting a 1 4 carat diamond rather than a 1 5 carat will look nearly the same in physical size but the price tag could be drastically different.
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.
In real life a well cut 0 90 carat stone measures up at around 6 20mm by 6 20mm and a well cut 1 00 carat diamond measures up at around 6 50mm by 6 50mm.
Diamonds that have less depth tend to have a larger spread meaning their millimeter measurements are larger without adding carat weight.
In fact a smaller carat weight diamond may have a diameter equal to that of a heavier diamond making it appear the same carat size when viewed from above.
There are however a few things you need to take into account that go beyond or even supersede carat size.
To clarify we worked with landau to bring you this visual guide to diamond carat size so you ll be able to envision exactly what that one two three four and beyond carat engagement ring will look like before hitting the stores.
Want to know the actual size of a 1 carat diamond on a hand.
0 90 carat diamond actual size.
Obviously you can notice that there is a stark difference in pricing when a diamond hits the magical 1 carat weight.
The diamond on the right weighs in at 0 92 carats and has an excellent cut.
The surface area is 6 23x6 2mm.
That is 1 5th of an inch.
For example a 90 carat diamond will typically cost less on a price per carat basis than a full 1 00 carat diamond.
To compare that a one carat diamond is 6 4mm.
Even though the carat weight is 50 of a 1 carat stone it doesn t face up twice as small.
A half carat diamond is usually 5 1mm in diameter.
On the other hand the size of a 5 carat diamond is approximately 5 2mm.
Visually they are difficult to distinguish.
So while the one carat is double the weight the face of the half carat diamond is only 21 smaller.
The diamond on the left is 1 00 carat and has a good cut.
The picture shows a ring which is us size six.
How large is a half carat diamond.