Emerald-Cut Lab-Grown Diamond 5×3 mm, Loose

An emerald-cut lab-grown diamond, 5 x 3 mm, D to F color, VVS clarity, sold individually. The same step cut, but more elongated than the 4 x 3 version.

The length ratio decides how the piece looks

A 5 x 3 mm stone is noticeably longer in proportion than a 4 x 3, so set crosswise on a ring band it makes the piece look wider; set lengthwise it makes the finger look slimmer. Same cut, two proportions, two different effects.

It's also a common substitute for baguettes when customers want long side stones but with the bevelled corners of an emerald cut, since baguettes have sharper corners that chip more easily with daily wear.

As side stones flanking a center

The most common use for this size is flanking a round or oval center stone. The long flashes of an emerald cut lead the eye inward, making the center stand out more than with round side stones.

Used as a pair, buy them together so both match in tone and length. A tenth of a millimetre difference shows immediately when they're set symmetrically.

Ordering and setting

Listed in two dimensions because it's rectangular; there's no ly size. Give us the exact seat measurements and the orientation you want; our setter will re-measure the seat before setting.

An elongated stone needs a seat that grips both ends, because those are the two load points. A seat that falls short at one end lets the stone wobble after a few months of wear, even if it felt secure when first set.

Care

Flat facets wipe clean quickly, but the two ends are where dust and lotion collect. Brush gently with a soft brush and warm water, rinse and dry.

Have the prongs at both ends checked regularly, especially on a ring. They're the first spots to wear on a piece with an elongated stone.