1.0 ct Cushion Lab-Grown Diamond Classic Solitaire Engagement Ring

A carat of cushion reads rounder and softer than a round of the same weight, and that is the whole argument for this ring. The stone measures 5.74 mm across, wide enough to hold the eye from across a table, slim enough that it slides under a shirt cuff without catching. Four slim prongs, a tapered polished shank, nothing set into the band to snag on a coat pocket or a keyboard. It goes to work on a Tuesday and to dinner the same night without a change of mind.

If you are buying it as a gift, this is the size that gets said yes to. It arrives in our folded presentation box with the IGI report for the exact stone in the ring, so the person opening it can read what they have been given. We size it before it ships when you know her size, and we resize it free in the first year when you would rather not ask.

The obvious question is whether a one carat lab diamond is a compromise. It is not a different material. This one is D color and VVS1 clarity, which is a grade most natural stones at this budget never reach, and it is graded by IGI the same way. What you are not paying for is the rarity premium. That is the only difference, and it is the reason a D/VVS1 carat lands here instead of near four thousand.

Set and sized to order in 14k gold or platinum. Ask our concierge if you want the stone swapped or the shank width adjusted.

Shown with a 1.0 ct lab-grown cushion (D color, VVS1 clarity, IGI certified) center for $1,539 total. Price shown is the complete ring; metal choice can change it. View the IGI certificate. Prefer a different diamond? Contact our concierge and we will hand-select it and quote the full all-in price.

Every order ships via complimentary insured UPS Express, signature required on delivery. Ready-to-ship pieces leave us in 2–3 business days; made-to-order pieces in 5–10. Returns accepted within 30 days, and every piece carries our free lifetime warranty.