Search our collections

SHOP PORTRAIT CUTS

ROUND BRILLIANT

& ROSE CUT MELEE

WHITE, SALT & PEPPER, CHAMPAGNE,

& BLACK DIAMOND

FANCY SHAPE

BRILLIANT CUT MELEE

WHITE, SALT & PEPPER, CHAMPAGNE,

& BLACK DIAMOND

Single Triangle Melee Reference

Triangle melee, side by side.

Triangles are chosen by side length and weighed by the carat. This chart covers single curved trilliants and straight edge triangles for patterns, clusters and accents, so you can plan the weight before you order. For side stones, see the pair chart. Every size is calibrated to ±0.15mm and sorted by hand under the loupe.

10Sizes charted
2Outlines
±0.15mm calibration
Weight Estimator

How many stones, how much weight.

Pick an outline and a size, then enter a stone count or a total carat weight. The other fills in.

Outline
Choose a size to begin Approximate weight per stone appears here.

Estimates only. Actual weight is confirmed on the scale.

The Chart

Millimeter to carat.

Each row is a calibrated side length. The shape beside it is drawn to scale against the others. Weights are for a single stone. Switch outline to see its sizes, then select any row to load it into the estimator.

Single trilliant and straight edge triangle melee sizes, with approximate carat weight per stone and approximate stones per carat
Scale Side Range (mm) Approx. ct / stoneCt each Approx. stones / ctPer ct
3.00mm 2.85–3.15 0.07 ct 14.3
3.50mm 3.35–3.65 0.15 ct 6.7
4.00mm 3.85–4.15 0.20 ct 5.0
4.50mm 4.35–4.65 0.25 ct 4.0
5.00mm 4.85–5.15 0.45 ct 2.2
3.00mm 2.85–3.15 0.06 ct 16.7
3.50mm 3.35–3.65 0.10 ct 10.0
4.00mm 3.85–4.15 0.15 ct 6.7
4.50mm 4.35–4.65 0.21 ct 4.8
5.00mm 4.85–5.15 0.40 ct 2.5

*Counts are approximate, based on standard calibrated single triangle melee, and vary with depth, the curve of the sides and size within the ±0.15mm tolerance. Scale shapes show relative size, not actual size on screen.

Reading the Numbers

What the chart can't tell you.

01

Side length is the spec

Triangles are calibrated by the length of a side. Order to the size your setter or CAD calls for, then use the weight column to plan the budget.

02

Curved or straight

A trilliant has gently curved sides, which give it a fuller outline and more spread for its size. A straight edge triangle keeps its sides flat, so it sits flush against the next triangle in a pattern or cluster.

03

Weight follows the make

Depth and the curve of the sides both move the weight, so two triangles with the same side can weigh differently. Counts here assume standard proportions. Every stone is a natural diamond, screened for natural origin before it ships.

04

How melee is sold

Retail orders are sold per the piece price shown. Trade orders are invoiced by the carat on the actual weight of your parcel, and we contact you first if the total differs from the estimate by more than 10%. Melee is final sale and not available on trade memo.

Triangle Melee

Found your size?

Single trilliant and straight edge triangle melee, sorted by hand and screened for natural origin before it ships.