Lab-Grown Diamond Engagement Ring

When light filters through the elongated facets of an 11 x 9 mm emerald-cut diamond, it reveals a quiet, architectural elegance that draws the eye inward. This semi-set three-stone engagement ring in polished platinum frames the center stone with two delicate side gems, each carefully positioned to enhance the emerald’s glassy depth without overwhelming its refined geometry.

Crafted in Williamsburg, Brooklyn, the ring’s low-profile setting ensures a comfortable fit for daily wear, while the platinum band offers a cool, substantial feel against the skin. The clean lines of the mounting are hand-finished and inspected to meet exacting standards, balancing durability with graceful minimalism.

Each diamond is lab-grown, reflecting a commitment to ethical jewelry that reduces environmental impact without compromising brilliance or clarity.

Designed for those who appreciate architectural beauty and subtle romance, this ring suits hands that favor elongated shapes and a refined silhouette. Its comfort fit and moderate height make it ideal for stacking or wearing alongside a wedding band without catching on gloves or sleeves.

Should you wish to adjust the size, resizing is available through our Brooklyn studio with care to preserve the integrity of the setting.

Explore this design in person at our Williamsburg studio or begin your custom journey online, where expert guidance awaits to bring your vision to life.

Haejin Jewelry is a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, where ethical craftsmanship meets thoughtful design in every piece.

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.