Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, casting a delicate shadow that dances with every movement. This semi-set platinum solitaire invites you to select a center stone that echoes your unique story, framed by a sleek, hand-polished band crafted in our Williamsburg studio.

Forged from cool, enduring platinum, the mounting features a refined low-profile setting that balances security with subtlety. Its slender prongs cradle the marquise shape, emphasizing the stone’s tapered points while ensuring comfort for daily wear. Each piece undergoes meticulous hand finishing and inspection, reflecting the artisan spirit of Brooklyn craftsmanship.

Our commitment to ethical jewelry is embodied in the choice of lab-grown diamonds, offering clarity and brilliance with a smaller environmental footprint. This ring’s streamlined silhouette suits those who appreciate minimalist elegance and a comfortable fit that slips easily beneath gloves or alongside stackable bands.

Because the center stone is sold separately, you have the freedom to select the precise marquise diamond that resonates with your vision, with resizing available to ensure a perfect fit. Lead times vary slightly depending on customization but are communicated clearly throughout the process.

Explore this semi-set marquise solitaire in person at our Williamsburg studio or begin your custom design journey online, where expert guidance awaits without pressure.

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.