Step cuts
Asscher diamonds
Square step with windmill depth
A square emerald cut with deep cropped corners that creates the signature concentric "windmill" pattern.
- Carat range
- 0.01 ct to 15 ct+
- Ideal length-to-width
- 1.00–1.05
- Facets
- 50–58
- Best for
- Art-deco, halo and east-west rings
- Available as
- Natural, lab-grown
- Grading
- Lab report where graded; grading on request
- HD video of your exact stone
- Insured worldwide delivery
Price check a asscher
About asscher diamonds
What sizes are asscher diamonds available in?
We supply asscher diamonds from 0.01 ct to 15 ct+, natural or lab-grown, as single stones, matched pairs or sets. Sizes outside that range can often be sourced or cut to order.
What is the ideal ratio for a asscher diamond?
Most clients prefer a length-to-width ratio of 1.00–1.05. Tell us whether you prefer a slimmer or fuller look and we filter stones to match.
Is a asscher available in lab-grown?
Yes. We offer asscher diamonds in both natural and lab-grown, each with an independent grading report that states its origin.
What settings suit a asscher?
Asscher diamonds are especially popular for art-deco, halo and east-west rings. We design settings around the exact measurements of your stone.