Lab-Grown Diamond Engagement Ring

Imagine the subtle elongation of a marquise diamond catching light with every gesture—its tapered points lending a quiet drama to your hand. This semi-set engagement ring in platinum awaits your choice of a 7 x 3.5 mm marquise center, designed to sit low and close for everyday ease.

Crafted in Williamsburg, the band’s sleek profile and secure setting ensure comfort beneath gloves or alongside stackable rings. The platinum’s cool sheen complements the stone’s sharp geometry, while the mounting’s precise finish reflects careful inspection and expert handwork.

Each lab-grown diamond option offers clarity and brilliance with a smaller environmental footprint, aligning with a mindful approach to fine jewelry.

Ideal for those who appreciate architectural elegance paired with practical wearability, this mounting balances statement and subtlety. Its low profile reduces snagging, making it a natural fit for daily life.

Should you need resizing or prefer a custom consultation, our Brooklyn studio welcomes you to explore options with no pressure and full transparency.

Visit us in Williamsburg or begin your custom design journey online—experience how Haejin Jewelry blends expert craftsmanship with ethical sensibility in the heart of Brooklyn.

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.