Old European Marquise Lab-Grown Diamond Engagement Ring | Fine Bypass Swirl

Specifications

• Piece: Sold with the center stone below — this cut is not offered in the diamond selector
• Center stone: 1.50ct old european marquise lab-grown diamond, VS clarity, colorless range
• Accent stones: None — center stone only
• Stone orientation: Tilted
• Setting: four compass-point claws, one at each tip and one on each side, carried between the ends of a fine plain yellow-gold bypass shank
• Metal: 10K, 14K & 18K solid gold and platinum
• Certification: IGI certificate on center stones of 1 carat and above
• Ring sizes: US 3–10, including half sizes
• Made to order: 1–2 week production, then shipping

This 1.5 carat marquise is cut with old European faceting, which gives it a chunkier, more antique look than a modern marquise, with broad facets and a deeper body. The band beneath is fine and plain, and its two ends sweep in opposite directions to meet the points, tipping the stone slightly off the line of the finger.

The setting

Four claws sit at the compass points: one over each tip and one on each long side. The tip claws guard the points, always the weakest part of a marquise, while the side claws hold the stone square in the head. At about 1.6 millimeters the bypass shank is a deliberate contrast with the weight of the stone, although a band this slim shrugs off knocks less well than a heavier one. Because antique marquise faceting is uncommon, the stone is not in the diamond selector and is supplied with the ring.

About our lab-grown diamonds

Every stone we set is a lab-grown diamond — the same carbon crystal structure, hardness and optical behavior as a mined diamond, grown rather than extracted. Center stones of 1 carat and above ship with an IGI certificate stating carat, cut, color and clarity. Melee and pave stones are matched to the same color and clarity range but are not individually certified.

Common questions

How do I pair a wedding band with a bypass?
The two shank ends leave the band at different points, so a straight band touches on one side and gaps on the other. Many people like that gap; if you want the rings to lock together, a band can be curved to follow the swirl.

Is a 1.6 mm band strong enough for a 1.5 ct stone?
For everyday wear with some care, yes, but it will show wear and can bend sooner than a heavier shank. Take it off for lifting and hard manual work, and ask about a thicker shank if you are hard on your hands.

Do the photographs show the exact ring I will receive?
The design, the cut and the carat weight, yes. Individual stones vary slightly, and colored stones in particular read differently under daylight and warm indoor light. We photograph your finished ring and send you those images before it ships.

Is the center stone certified?
Yes. Every center stone of 1 carat and above ships with an IGI certificate stating carat, cut, color and clarity. Accent and pave stones are matched to the same color and clarity range but are not individually certified.