Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, its tapered points drawing the eye along a delicate horizon. This semi-set three-stone engagement ring foundation in warm 18K rose gold offers a sculptural frame for an 8 x 4 mm center stone, ready to be chosen and personalized.

Hand-forged in our Williamsburg studio, the band’s subtle curvature and smooth finish ensure a comfortable fit that sits low against the finger, ideal for everyday wear. The three-stone setting balances architectural drama with refined craftsmanship, each prong meticulously shaped to cradle your center diamond securely while allowing light to flood its facets.

Our commitment to lab-grown diamonds means your ring begins with a stone of exceptional clarity and ethical provenance, reflecting a modern approach to sustainability without compromise.

The slender rose gold band complements elongated hand shapes and layers gracefully with other stackable rings, while its low profile makes it glove-friendly and unobtrusive for daily life. This semi-set allows you to select a marquise diamond that resonates personally, whether you favor a fiery brilliance or a softer glow.

Should you need adjustments, resizing is handled with care in-studio to maintain the integrity of the artisan finish. Typical lead times accommodate the custom selection and setting process, ensuring each ring is crafted to your exact vision.

Visit us in Williamsburg to explore this three-stone semi-set in person or begin your custom design journey online—where expert guidance meets thoughtful craftsmanship.

Haejin Jewelry stands as a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, blending ethical craftsmanship with local artistry to create pieces made for a lifetime.

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.