Select your centre stone
Every stone independently graded and certified.
469 results
0.54ct Round Lab Grown Diamond (Colour E, Clarity VS2, Cut VG, IGI Certified)
0.51ct Round Lab Grown Diamond (Colour D, Clarity VS2, Cut VG, IGI Certified)
0.51ct Round Lab Grown Diamond (Colour D, Clarity VS2, Cut VG, IGI Certified)
0.52ct Round Lab Grown Diamond (Colour D, Clarity SI1, Cut EX, IGI Certified)
0.51ct Round Lab Grown Diamond (Colour D, Clarity VS2, Cut VG, IGI Certified)
0.51ct Round Lab Grown Diamond (Colour E, Clarity VS2, Cut EX, IGI Certified)
0.54ct Round Lab Grown Diamond (Colour E, Clarity VS2, Cut VG, IGI Certified)
0.50ct Round Lab Grown Diamond (Colour D, Clarity SI1, Cut VG, IGI Certified)
2.01ct Round Lab Grown Diamond (Colour D, Clarity SI1, Cut ID, IGI Certified)
2.06ct Round Lab Grown Diamond (Colour F, Clarity SI1, Cut ID, IGI Certified)
2.01ct Round Lab Grown Diamond (Colour H, Clarity VS1, Cut EX, IGI Certified)
2.04ct Round Lab Grown Diamond (Colour F, Clarity SI1, Cut ID, IGI Certified)
2.00ct Round Lab Grown Diamond (Colour F, Clarity SI1, Cut ID, IGI Certified)
2.08ct Round Lab Grown Diamond (Colour G, Clarity SI1, Cut EX, IGI Certified)
1.54ct Round Lab Grown Diamond (Colour H, Clarity VVS2, Cut EX, IGI Certified)
1.53ct Round Lab Grown Diamond (Colour H, Clarity VVS2, Cut EX, IGI Certified)
1.53ct Round Lab Grown Diamond (Colour H, Clarity VVS2, Cut EX, IGI Certified)
1.53ct Round Lab Grown Diamond (Colour H, Clarity VVS2, Cut EX, IGI Certified)
1.50ct Round Lab Grown Diamond (Colour H, Clarity VVS2, Cut ID, IGI Certified)
1.52ct Round Lab Grown Diamond (Colour H, Clarity VVS2, Cut EX, IGI Certified)
1.51ct Round Lab Grown Diamond (Colour H, Clarity VVS2, Cut ID, IGI Certified)
1.50ct Round Lab Grown Diamond (Colour H, Clarity VVS2, Cut ID, IGI Certified)
1.50ct Round Lab Grown Diamond (Colour H, Clarity VS1, Cut EX, IGI Certified)
1.13ct Round Lab Grown Diamond (Colour E, Clarity SI1, Cut ID, IGI Certified)
Lab-Grown Round Diamonds
A lab-grown round brilliant is the same material as a mined one — carbon in the same crystal structure, cut on the same wheels, graded against the same scale. What changes is what your budget reaches. In this shape, moving from mined to grown typically buys you a full carat more, not a fraction.
That shifts how the decision should be made. On a natural round, most of the conversation is about what to give up: a colour grade here, a clarity grade there, to keep the size. On a grown round, colour and clarity are inexpensive enough that there is no reason to buy below F or below VS1. Spend the saving on cut instead, and on the size you actually wanted.
Almost every lab-grown round is graded by IGI, which is a practical advantage: the reports are consistent with one another, so comparing two stones here is genuinely like-for-like rather than an exercise in translating between laboratories. Growth method — CVD or HPHT — makes no difference to how a finished, well-cut stone looks.
The one thing worth checking with your own eyes is the 360° video. A report will not show you a stone that has been cut deep to hold weight.
Questions people ask before buying
Are these diamonds certified?
Yes. Every stone is graded by GIA, IGI or HRD, and the report number is shown on the stone's page so you can verify it directly with the laboratory. A stone certified by any other laboratory, or ungraded, cannot be bought here at all.
Does the price include a setting?
No. Loose diamonds and ring settings are priced separately, so you can pair any stone with any setting in a compatible shape. The ring builder shows the two together and the combined total before you order.
What should I prioritise when choosing?
Cut first — it is the only grade you can see across a room. Then clarity down to eye-clean, usually VS2 or SI1. Then colour: G or H reads white in platinum, I or J in yellow gold. Then buy just under a landmark weight, because 0.95 ct looks like 1.00 ct and costs less. The guide to the 4Cs explains the trade-offs in full.
How much is shipping?
Nothing. Every order ships free and fully insured, anywhere in the world, at any order value. Import duties and taxes outside the United States are the recipient's responsibility.
Can I return it?
Yes, within 30 days, unworn and in its original packaging with the certificate. The return leg is arranged and paid by you, and must be insured and tracked.
Is there a warranty?
A lifetime warranty against any manufacturing defect, for as long as you own the piece. Full detail on the FAQ page.