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Solitaire · Personalise below

Marquise Solitaire Lab-Grown Engagement Ring — 18K Rose Gold

From $2,300Starts at 1.50ct Marquise · D–F · VVS2 · IGI
A marquise lab-grown diamond set in a clean four-prong solitaire on an 18K rose gold band. The most-asked-for engagement ring format in the US, engineered to the standards of a modern atelier. Specifications Center stone: Marquise lab-grown diamond, IGI certified Color & clarity: D–F / VVS2 Cut grade: GIA Excellent equivalent Setting: Solitaire Metal: 18K Rose Gold (also available in Yellow or White), hand-finished Band width: 1.8mm Inner diameter (US size 6.5): 16.9mm Certification: IGI Why this design Marquise is the longest cut profile — 100% length-to-width ratio extension over a round of the same carat. Originally cut for King Louis XV, it remains the strongest finger-elongating shape in bridal. The rose gold metal softens the cool tone of the diamond into a warmer, more skin-flattering profile. Made to order Each ring is hand-finished to order. Production and shipping take 12–16 business days. Includes IGI certificate, complimentary resizing within 60 days, and lifetime cleaning. Frequently asked How fragile are the points? The two points of a marquise are the most exposure-prone areas on any cut. We always set marquise rings with V-prongs at both tips for protection. Recommended setting check every 12 months. Is this a real diamond? Yes. Lab-grown diamonds are chemically and optically identical to mined diamonds — same carbon structure, same 10 Mohs hardness, same fire. The only difference is origin. Can I customize the metal or carat? Yes. Choose 14K or 18K white, yellow, or rose gold. Center stone ranges from 1ct to 5ct.
IGI CertifiedLifetime warrantyFree resizing
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Your selection1.50ct Marquise · D–F · VVS2 · IGI
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Stone1.50ct Marquise · D–F · VVS2 · IGI
Metal14K White Gold
SizeUS 6

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Four Promises

Every ring, cared for beyond the sale.

IGI Certified

Every center stone ships with its independent IGI report — color, clarity, cut, and carat, verified by a third party.

Made in Our Atelier

Hand-set to order over 12–16 days. Setting consistency is quality-checked across every size.

Complimentary Resizing

One complimentary resize within 60 days. Lifetime cleaning and prong inspection included.

Free Insured Shipping

FedEx or DHL, fully insured and signature-required. 30-day returns, free both ways.

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