The shape library
Asscher
Symmetry with a deep perspective.
Step cut
Asscher
Symmetry with a deep perspective.
A square step-cut outline with clipped corners creates a geometric sequence of reflections. Its broad facets invite close, unhurried inspection.
View asscher size chart A closer look at asscherEducational example. Supply availability is confirmed on enquiry.
Illustrative faceted models, shown under consistent lighting. Actual stones, facet patterns and proportions vary.
A sense of scale
Asscher
size chart.
All sizes, in two parts. Select any weight below to compare its approximate millimetre size.
Square examples with clipped corners, measured across opposite sides.
Understand carat and the 4Cs01 Small stones
0.02–0.20 ct
| Carat weight (ct) | Length × width (mm, approx.) |
|---|---|
| 1.5×1.5 † | |
| 1.7×1.7 † | |
| 1.9×1.9 † | |
| 2×2 | |
| 2.2×2.2 † | |
| 2.3×2.3 | |
| 2.4×2.4 † | |
| 2.5×2.5 † | |
| 2.6×2.6 | |
| 2.7×2.7 † | |
| 2.9×2.9 † | |
| 3×3 | |
| 3.2×3.2 † | |
| 3.3×3.3 |
02 Larger stones
0.25–5.00 ct
| Carat weight (ct) | Length × width (mm, approx.) |
|---|---|
| 3.5×3.5 | |
| 4.5×4.5 | |
| 5×5 | |
| 5.5×5.5 | |
| 6.25×6.25 | |
| 7×7 | |
| 8×8 | |
| 8.5×8.5 | |
| 9.5×9.5 |
† Calculated estimate from nearby published sizes. Below the smallest reference, dimensions are scaled assuming unchanged proportions. These entries describe an illustrative size, not a measured stone.
Educational estimates. Carat measures weight: 1 ct = 0.2 g. Depth, girdle and proportions affect dimensions, so there is no exact mm-to-carat conversion. Check the individual stone’s measurements and grading report.
References: Stuller size chart (PDF)GIA carat education
Character & construction
Symmetry with a deep perspective.
A square step-cut outline with clipped corners creates a geometric sequence of reflections. Its broad facets invite close, unhurried inspection.
What to consider
Assess clarity, colour and the distribution of light across the steps. This is an educational example; availability is confirmed on enquiry.
Ask for the actual measurements, report and images of the stone being offered. A shape illustration cannot establish its appearance, grading or availability.
Read the shape alongside the 4CsContinue exploring
Another perspective.
Request availability
Begin with
a simple brief.
Add the specifications you know, or describe the requirement in your own words. Availability and documentation are confirmed directly by our team.
Start a conversation