Lab-Grown Diamond Engagement Ring

Sunlight catches the gentle curve of a 5.5 mm round diamond, its facets alive with quiet fire, poised between two smaller stones that frame it like whispered promises. This three-stone semi-set engagement ring invites your choice of center diamond, offering a canvas for personal meaning.

Crafted in platinum, the band is hand-finished to a satiny smoothness that rests comfortably against the skin. Its low-profile setting balances presence with practicality, designed for everyday wear without catching or shifting. Each prong is meticulously shaped and polished in our Williamsburg studio, ensuring secure hold and refined detail.

Choosing a lab-grown diamond for the center stone aligns with a commitment to ethical jewelry, reducing environmental impact while delivering exceptional clarity and brilliance.

The ring’s silhouette suits those who appreciate classic geometry with a modern twist—ideal for stacking alongside wedding bands or worn solo as a statement of enduring connection. Its modest height and comfort fit make it glove-friendly and unobtrusive for daily life.

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

Visit us in Williamsburg to explore this semi-set ring in person or begin your custom design journey online, where expert guidance awaits without pressure.

Haejin Jewelry stands as a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, blending expert craftsmanship with ethical sourcing and a deep connection to New York City’s artisan spirit.

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.