Round Three Stone Engagement Rings

Shop our round three stone lab-grown diamond engagement rings. IGI-certified, conflict-free diamonds set in solid 10K–18K white, yellow, and rose gold. Free worldwide shipping, 30-day returns, and a 1-year warranty on every ring from Riona Jewel.

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Marquise
Marquise Lab Grown Diamond Three-Stone Engagement Ring

Marquise Lab Grown Diamond Three-Stone Engagement Ring

$1,236.00 – $2,673.00
This marquise engagement ring showcases the brilliance of lab-grown diamonds in a stunning three-stone setting. The elongated marquise center diamond is beautifully flanked by two accent stones, creating a captivating...
Marquise Lab Grown Diamond Three-Stone Engagement Ring

Marquise Lab Grown Diamond Three-Stone Engagement Ring

$892.00 – $1,884.00
This marquise engagement ring captures timeless elegance with a distinctive three-stone design that celebrates your love story. The elongated marquise-cut center diamond is beautifully framed by two complementary side stones,...
Marquise Lab Grown Diamond Three-Stone Engagement Ring

Marquise Lab Grown Diamond Three-Stone Engagement Ring

$1,820.00 – $3,430.00
This marquise engagement ring showcases the timeless elegance of a three-stone setting, designed to symbolize your past, present, and future together. At its heart, a stunning marquise-cut lab-grown diamond takes...