Take your best guess.
Actual size 4 carat oval diamond ring.
Click here to download our practical ring size guide.
Oval cut diamond size chart mm the oval cut diamond varies in length to width ratios like the emerald cut diamond.
The diamond on the left is 1 00 carat and has a good cut.
Take your best guess and don t sweat it.
If the size is wrong simply send in your ring within 90 days of your purchase and we will resize.
This 4 carat oval has a face up area of approx.
The surface area is 6 23x6 26mm.
Face up size of this diamond is as you would expect of a 4ct round learn more.
Personally i think diamonds below 0 30ct would look small and i would recommend using a halo setting to spruce up the appearance of the engagement ring.
When it comes to large carat size diamonds above 1 5ct i would recommend solitaire settings to prevent an overbearing appearance of the diamond when it is worn on the finger.
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.
The surface area is 6 23x6 2mm.
In short all is ok this diamond looks its weight.
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.
90 79 mm which falls within the normal range for 4ct ovals 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.
The importance of face up size.
Download our ring size pdf.
83 65 mm which falls within the normal range for 4ct rounds 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.
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.
Below are images of incremental carat sizes in every center stone shape shown on a hand model with a ring size of 5 75.
Selecting the i don t know option will allow you to select a ring size later.
Face up size of this diamond is as you would expect of a 4ct oval learn more.
The chart below compiles average conversions for the millimeter measurements and carat weight of oval cut diamonds.
Compared to 2ct oval reference diamond see below this diamond is of adequate size when viewed from the top.
This 4 carat round has a face up area of approx.
Even though the carat weight is 50 of a 1 carat stone it doesn t face up twice as small.
Each stone is set into a ring and please note these are only close approximates as center stone dimensions and length width ratios can vary on stone by stone basis.
There are however a few things you need to take into account that go beyond or even supersede carat size.
Diamond moissanite carat sizes shown on the hand.
The face up size of this 2 carat oval 10 23 6 82 4 16mm is within the normal range for 2ct diamonds of this shape.