Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, its pointed ends tracing a delicate arc across the finger. This semi-set engagement ring invites you to choose a 9 x 4.5 mm center stone, framed by four smaller companions that echo its graceful shape in a quiet dance of light.

Crafted in warm 14K rose gold, the band curves gently with a comfort fit that rests naturally against the skin. The five-stone setting balances presence with subtlety, designed low enough to slip easily beneath gloves or stack alongside a wedding band without crowding.

Each piece is finished by hand in our Williamsburg studio, where expert jewelers refine every prong and polish every surface to a soft glow. The rose gold’s blush tone complements the marquise’s vintage-inspired elegance, while the semi-set design offers a bespoke opportunity to select a lab-grown diamond with clarity and brilliance that honors sustainability.

Ideal for those drawn to romantic geometry and a ring that feels as personal as the story it represents, this setting adapts gracefully to various hand sizes and shapes. Resizing is available to ensure a seamless fit, crafted with care to maintain the ring’s delicate balance.

Explore this design in person at our Brooklyn studio or begin your custom journey online—where thoughtful craftsmanship meets ethical jewelry in every detail.

Haejin Jewelry stands as a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, blending expert craftsmanship with a commitment to ethical, locally made design.

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.

Finished for daily wear — a low-profile silhouette and polished edges help minimize snagging.