Everything worth knowing about lab-grown diamonds — the 4Cs, shapes, fancy colours, cut geometry, and IGI certification — in one place. Learn it here, then head to the catalog or open a Diamo Invest wallet with confidence.
How each carat weight actually reads on a finger — from a delicate 0.5 ct (5.0 mm) to a statement 10 ct (14.0 mm). Size scales slower than weight.
Teardrop elegance, modern fire, vintage softness. Three shapes that read very differently in the same carat weight.
Ideal cuts return maximum light. Shallow stones look larger but leak fire; deep stones swallow it. Always certified.
Fancy colours sit at the top of the value pyramid. Argyle pink and boron-blue stones are mined in fractions of a percent.
From flawless to included. The fewer the inclusions a stone holds under 10× magnification, the rarer and more brilliant it reads.
Antwerp, 1975. Each diamond we ship carries an IGI report covering carat weight, colour, clarity and cut grade.
Coloured stones get their own report. Origin (natural vs treated), saturation, symmetry, polish and fluorescence all priced in.
The 4Cs framework for grading colour (D–Z) and clarity (IF–I3).
CVD reactors turn a carbon seed into a rough crystal in weeks.
Beyond the 4Cs, four decisions do most of the work — what a diamond actually is, how much stone your budget really buys, where it comes from, and which grades are worth paying for.
Lab-grown diamonds are pure crystallised carbon: same hardness (10 Mohs), same refractive index (2.42), same fire and brilliance as a mined stone. They pass every diamond tester. Moissanite (silicon carbide) and cubic zirconia (zirconium dioxide) look similar to the eye but are chemically different materials. If it isn't grown or mined carbon, it isn't a diamond.
For the same colour, clarity and cut grade, a DIAMO ELITE lab-grown diamond typically lands 2–3× larger on the hand than a mined equivalent at the same price. You aren't paying for the scarcity of the mine — you're paying for the crystal itself. The result reads bigger, brighter and better proportioned at every budget.
Every DIAMO ELITE stone is grown in an IGI-audited facility with a documented origin — no displaced communities, no conflict-financing risk, no cross-border traceability gaps. Growing a diamond uses a small fraction of the land, water and energy that industrial mining requires. Same beauty, dramatically lighter footprint.
We deliberately narrow inventory to the top of the grading scale: colourless D–F, VS1 or better in clarity, and an Excellent cut grade. Below G, colour starts to warm perceptibly; below VS2, inclusions begin to catch the eye. Above D and above IF, you pay a premium no one can see. This is the range that reads white, bright and eye-clean.