mm to Carat Stone Size Chart
Asscher-cut

A replica of the emerald cut diamond with a blend of princess cut, an asscher cut diamond has high clarity produced by its large step facets that reflects a significant amount of sparkle as light passes through its mirror steps. Derived from the Art Deco era, this is a vintage cut with a modern feel. Our stone sizing chart below shows the standard sizes and matching carat weights for asscher-cut diamonds to help you find your perfect fit.

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Asscher Diamond Average Carat by Millimeter Conversions

Asscher cuts are among the most rare shapes on the market and make for a truly unique piece.

The hall of mirrors effect can be seen by looking into this mesmerizing stone, reminiscent of a lifetime of memories. | Shop the Kobelli Asscher Collection.
Approx. Millimeter
Approx. Carat Weight
4.4
0.5
5.5
1
6
1.25
6.3
1.5
7
2
7.5
2.5
8
3
8.3
3.5
8.6
4
9
4.5
9.7
5
Round-shape diamond

Round

Cushion-shape diamond

Cushion

Oval-shape diamond

Oval

Marquise-shape diamond

Marquise
Pear-shape diamond

Pear

Emerald-shape diamond

Emerald

Radiant-shape diamond

Radiant

Asscher-shape diamond

Asscher

FAQ

How much does a listed carat weight vary by?

All diamond weights may vary by 5% unless stated otherwise. One-of-a-kind products will showcase the exact weight of all stones.

Do moissanites weigh the same as diamonds?

Not quite - while the moissanite gemstone is technically slightly lighter in weight due to a lower density, the stones are most commonly marketed by their Diamond Equivalent Weight (DEW) in accordance to the millimeter size of the stone rather than the weight of the stone itself.

All of Kobelli's moissanite products will be listed with the Diamond Equivalent Weights (DEW). This allows for an identical dimensional look if you are to upgrade your existing moissanite center stone for a diamond.

What about other gemstones?

Gemstones, aside from moissanites, will be listed in accordance to either their millimeter size or their carat weight. Every stone type carries its own unique traits for density and depth.