September 1, 2026 · 5 min read
Buying loose diamonds wholesale as a jeweler
How trade accounts actually work, when a phone call beats a cart, and the red flags that should end a conversation.
Education
Plain guidance for jewelers and designers who buy loose stones. How the trade prices them, how pairs get matched, what a report does and does not tell you, and where the specialty cuts actually come from. No fluff and no sales pitch.
September 1, 2026 · 5 min read
What wholesale diamond prices actually look like
Per-carat math, break points, and why the natural and lab-grown markets no longer move together. Written for someone buying, not browsing.
September 1, 2026 · 4 min read
GIA and IGI, the real-world split
Natural stock comes on GIA papers. Lab-grown comes on IGI. Here is how the market ended up that way and what to check on either report.
September 1, 2026 · 5 min read
Length to width ratios, the working guide
What ratio bands the trade actually orders in, shape by shape, and why the charts you find online will hand you the wrong stone.
September 1, 2026 · 6 min read
How diamond matched pairs are actually matched
Weight to the point is the easy part. What actually makes two stones read as a pair, and why the second stone costs more than the first.
September 1, 2026 · 5 min read
Long cushion and elongated cushion: what the trade means by each
Two names, one shelf, and a real supply problem behind them. What the terms mean in the trade and how a long cushion prices next to an oval.
September 1, 2026 · 5 min read
Old mine cut in the lab-grown era
A cut that stopped being made in 1910 is one of the fastest moving things on our shelf. What it is, what to check, and why it came back.