Triangle Diamonds: Matched Side Diamond Pairs
Matched pairs of triangle side diamonds for Three-Stone rings and earrings. Widen the filters on the left to see more.
Build the Three-Stone: preview side diamonds with a center
Matched in-house: ±0.1–0.2 mm and about one color grade · Same-day shipping before 6 PM ET · No MOQ · NY + LA
| Stock# | Status | loc | shape | carat | color | clarity | lab | Certificate | p/ct | total | measurements | ratio | Image | Video | Growth type | flour | cut | polish | symmetry | depth | table |
|---|
Triangle diamond sizes: carat to mm
Our 500+ matched pairs of triangle diamonds run 2.6–9.0 × 2.6–9.0 mm per diamond. Weights are the total for the pair.
| Pair total weight | Typical size of each diamond (L × W) | Pairs measured |
|---|---|---|
| 0.1 ct | 3.0 × 3.0 mm | In stock |
| 0.2 ct | 3.5 × 3.5 mm | 10+ |
| 0.3 ct | 4.3 × 4.3 mm | 50+ |
| 0.4 ct | 4.8 × 4.8 mm | 50+ |
| 0.5 ct | 5.0 × 5.0 mm | 50+ |
| 0.75 ct | 5.5 × 5.5 mm | 50+ |
| 1 ct | 6.2 × 6.2 mm | 50+ |
| 1.5 ct | 7.2 × 7.2 mm | In stock |
| 2 ct | 8.0 × 8.0 mm | 10+ |
Other side diamond shapes
Pick the center
Triangle side diamonds, wholesale matched pairs
Triangle side diamonds have straight sides and crisp points, a sharper, more geometric take on the trillion. Guru Diam has 500+ matched pairs of triangle lab-grown diamonds in stock in New York and Los Angeles, matched in-house (±0.1–0.2 mm and about one color grade), each with its own page, photo and video.
Triangle pair trade questions
How are the pairs matched?
Every pair is matched in-house: ±0.1–0.2 mm and about one color grade. Pairs are not lab graded; each pair has its own page with the measurements, color, clarity, photo and video.
What center diamond goes with these side diamonds?
Use the Three-Stone preview above to try a side shape with a center, then choose a certified lab-grown center diamond. We also set it: see custom jewelry.
How fast do you ship?
Orders placed before 6 PM ET ship the same day from New York. International delivery takes 3–4 business days.
Can you match a size that is not listed?
Yes. We source or cut diamonds to your specification. Send the shape and size in mm on WhatsApp.
How do I see prices?
Prices are for the trade. Sign in, or open a trade account: approval is the same business day if you apply before 4 PM ET.