Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated points of a 6 x 3 mm marquise diamond, casting a delicate, tapered glow that draws the eye along the finger’s natural line. This semi-set halo ring in 18K rose gold offers a refined balance between presence and subtlety, designed to sit close to the hand without catching on daily fabrics.

Crafted with a low-profile halo setting, the band’s smooth finish and precise prong work ensure comfort and durability. The rose gold’s warm blush complements the marquise’s vintage-inspired silhouette, while the halo enhances brilliance without adding bulk. Each piece is meticulously inspected in our Williamsburg studio to meet exacting standards of fit and finish.

Choosing a lab-grown diamond means embracing clarity and sustainability, with a smaller environmental footprint and traceable origins. This ring’s streamlined design suits those who favor elegance with practicality—ideal for stacking or wearing solo, and gentle enough for everyday life.

Should you need a custom fit, resizing is handled expertly in-house to maintain the integrity of the setting. Typical lead times reflect our commitment to handcrafted quality rather than mass production.

Explore this semi-set marquise halo in person at our Williamsburg studio 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 ethical craftsmanship with local expertise to create pieces made for life’s most meaningful moments.

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.