Emerald-Cut Lab-Grown Diamond 4×3 mm, Loose

An emerald-cut lab-grown diamond, 4 x 3 mm, D to F color, VVS clarity, sold individually. A rectangular step cut with flat facets.

Emerald gives clarity, not fire

Step cutting creates long parallel flashes of light instead of small sparks. The stone looks clear, calm and refined, but doesn't sparkle like a round or radiant. It's the choice for people who prefer clean lines over flashing stones.

One thing to say plainly: because the facets are flat and clear, any inclusions inside show far more than in a brilliant cut. That's why emerald cuts usually need higher clarity, and Thảo Linh keeps this lot at VVS.

What it's used for

The 4 x 3 mm size suits a row along a ring band, a pair of side stones flanking a center, or a crisp square accent on a pendant. Set end to end, the flashes of each stone join into one long, very clean line.

Don't mix emerald cuts with brilliant cuts in the same row. The two cuts reflect light differently, so side by side one sparkles and the other looks subdued, and the stones look uneven.

Measurements and ordering

The stone is listed with two dimensions because it's rectangular and can't be converted to ly. When ordering, give us the two exact seat measurements and say whether you want the stone lengthwise or crosswise on the piece.

Our setter measures the seat before setting. With a rectangular shape, a tenth of a millimetre off in width is enough to make the stone sit crooked, because straight edges have no room to shift the way a round stone does.

Care

Flat facets are easier to wipe clean than a many-faceted cut; a soft cloth is enough for daily care. Wash thoroughly with warm water and a soft brush every week, paying attention to the underside of the stone.

The corners of an emerald cut are already bevelled, so they're sturdier than sharp points, but it's still best to take it off for heavy work.