Princess-Cut Lab-Grown Diamond 4.5×4.5 mm, Loose

A princess-cut (square) lab-grown diamond, 4.5 x 4.5 mm, D–F color, VVS clarity, sold individually. A small stone for setting in rings, earrings, pendants or as an accent on an existing piece — not a large center stone with its own grading report.

What D–F color and VVS clarity mean

D–F is the whitest group on the diamond color scale; next to a G–H stone it looks clearly brighter and clearer. VVS clarity means inclusions are only visible under 10x magnification, not to the naked eye. For a small stone already set in a piece, the difference you actually see comes mostly from the cut and the setting — so choosing the right color and clarity group is enough; there's no need to go higher.

How a loose stone differs from a certified stone

A certified stone is examined and graded individually, and its report can be verified by number. Loose stones in this size are sourced in lots of the same shape, size and D–F / VVS grade, with no report per stone, so they can't be verified individually — in return they're priced per stone and much lower. If you need an individual report for each stone, choose from our certified diamonds.

How it's set

This shape has points or corners, so the seat has to be measured to the stone: our setters at the Thảo Linh workshop weigh each stone before setting, then check the prongs and how well the seat holds it afterwards. If you already have a setting, bring it in so we can measure the seat first — a seat 0.2–0.3 mm off means the stone won't sit securely or won't fit at all.

Keeping the stone bright

Small stones pick up dust and lotion faster than large ones. Soak in warm water with mild soap, brush gently with a soft brush and rinse well. Take your jewelry off for heavy work, swimming or when using cleaning chemicals; drop by every few months to have the prongs checked, especially those on points and corners.