Our methodology, in plain language
Live inventory pricing
When you change a spec above, this calculator queries our actual inventory in real time. The figures shown are the prices of stones we have available right now — not estimates, not averages of the broader market. We source directly from Antwerp cutters via Rapnet (the global trading network operated by Rapaport) and apply transparent fixed-percentage margin tiers — no commissioned sales, no negotiation step, no showroom rent on the price.
Why we don't advertise "savings vs retail"
You'll see other diamond sites publish "you save 50% off retail" badges. We don't — because that retail figure is invariably their own estimate, multiplied from their wholesale price. The same diamond can sell for 2× our price at one jeweller and 8× at another, depending on overhead, brand, and location. Rather than manufacture a "savings" number, we publish our real prices and let you compare them yourself against any source you trust.
When we don't have a match
For specs we don't carry in standard inventory, the calculator falls back to an indicative sourcing price using our same margin model. The exact figure depends on what's available on Rapnet at the moment we source for you, and we'll quote you the real number before any commitment.