If you are looking for a rare or non-standard diamond shape and cannot see it in the main search filters, it is likely classified under a broader category in the Nivoda taxonomy.
Where are unusual shapes classified?
Use the table below to locate specific cuts within the Nivoda search tool:
| Shape Name | How to find it in Nivoda search |
|---|---|
| Elongated Cushion | Select Cushion and use the L/W Ratio filter (> 1.15). |
| Moval | Select Oval and use the L/W Ratio filter (>1.75)pro |
| Portuguese Cut Round | Select Other and use L/W Ratio filter (0.99-1.01) |
| Dutch Marquise | Select Hexagonal and use L/W Ratio filter (1.8–3) |
Using the Length-to-Width (L/W) Ratio
For shapes where elongation is important (such as ovals, pears, and marquises), use the L/W Ratio filter to narrow your search. As a general reference, use the following ratios:
Standard Oval: 1.25–1.45
Elongated Oval: 1.50+
Standard Pear: 1.50–1.75
Elongated Pear: 1.75+
Standard Cushion: 1.00–1.05
Elongated Cushion: 1.10–1.20+
What if the shape is still not visible?
If you cannot find a specific shape using the filters and tips above, contact us with your full specification requirement. Our team can source shapes across our full supplier network, including those not commonly listed in the standard inventory search.