2 designs
Pentagonal Lab-grown Diamonds
The pentagonal cut is a five-sided shape — genuinely rare, deliberately asymmetric, and made for people who want a stone nobody else will be wearing.
They are cut in very small numbers, so if you find one you like at the right size it is unlikely to be repeated. Lab-grown diamonds are chemically, physically and optically identical to mined stones, certified to the same standards and typically 60-80% less per carat. Our lab-grown diamond guide covers the detail. Compare it with every other outline in our diamond shapes guide, and get to grips with what actually drives price in our diamond 4Cs guide. Every stone is independently certified, priced transparently, and can be set into any ring in our collection or into a design of your own.
