Lab-Grown Diamond Engagement Ring

Under the soft glow of a Brooklyn evening, a square silhouette catches the light with quiet confidence. This semi-set five-stone engagement ring invites your choice of a 4.5 x 4.5 mm square center diamond, its precise geometry echoing modern elegance.

Crafted in cool, enduring platinum, the mounting balances strength with refined minimalism. Each prong is meticulously shaped to secure the stones while allowing light to dance freely across their facets. The low-profile design ensures a comfortable fit, ideal for daily wear and effortless stacking.

Our commitment to ethical jewelry shines through the use of lab-grown diamonds, offering clarity and brilliance with a reduced environmental footprint.

The five-stone arrangement suits those who appreciate subtle sparkle layered with architectural grace. Its clean lines complement slender fingers and pair beautifully with wedding bands or delicate stackable rings.

Should you wish to adjust sizing or explore custom details, our Brooklyn studio welcomes your questions with thoughtful, pressure-free guidance.

Discover this semi-set square engagement ring in person at our Williamsburg atelier or begin your custom design journey online—where craftsmanship meets your vision.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio dedicated to lab-grown diamond engagement rings, blending expert craftsmanship with ethical practices rooted in New York City’s creative 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.