Lab-Grown Diamond Engagement Ring
Sunlight catches the elongated silhouette of a marquise diamond, its tapered points drawing the eye along a graceful arc. This semi-set platinum mounting awaits a 10 x 5 mm center stone, designed to showcase the marquise’s distinctive, dramatic shape—both bold and refined.
Crafted in our Williamsburg studio, the band features delicate accent settings that frame the center with subtle sparkle, all polished to a satin finish that feels smooth against the skin. The low-profile design ensures everyday comfort, while the platinum’s natural strength offers lasting durability without added weight.
Each ring is built around a lab-grown diamond, chosen for its clarity and ethical origin, reflecting a commitment to sustainability without compromise on brilliance.
Ideal for those who appreciate architectural elegance with a modern edge, this mounting pairs beautifully with slender bands for stacking or stands confidently alone. Its streamlined silhouette slips easily beneath gloves and fits comfortably for daily wear.
Resizing is available to ensure a precise fit, and our in-studio process allows for personalized adjustments during your design consultation.
Visit us in Williamsburg or explore the Ring Builder online to bring your marquise vision to life with expert guidance and thoughtful craftsmanship.
See how your design comes to life with our Ring Design Online, or start a truly custom piece from scratch in our Williamsburg studio.
Explore our Guides & Education and Stories & Lifestyle for diamond education, care tips, and real studio stories.
Haejin Jewelry is a Brooklyn fine-jewelry studio known for custom lab-grown designs. Every piece is finished in our Williamsburg studio, where artistry, ethics, and precision come together to create engagement rings that define modern love in New York City.
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Customer Reviews — Haejin Jewelry Williamsburg Brooklyn NYC
Haejin Jewelry is a Brooklyn jewelry studio in Williamsburg creating lab grown diamond engagement rings and fine jewelry with transparency and care. Read verified customer experiences from across Brooklyn and New York City.
Trusted by couples designing engagement rings in Williamsburg and NYC
Custom design, clear pricing, and local service
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What customers say about Haejin Jewelry
Timeless Elegance, Crafted for Forever