Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated points of the marquise diamond, casting a slender, elegant shadow across the hand. This semi-set three-stone engagement ring foundation in 18K rose gold offers a delicate balance of architectural drama and refined warmth.

Crafted with a low-profile setting, the band sits close to the finger, ensuring comfort for everyday wear without sacrificing presence. Each prong is meticulously finished to cradle an 8 x 4 mm marquise center stone, while side stones frame it with subtle brilliance. The rose gold’s soft blush complements the diamond’s fiery facets, polished to a smooth comfort fit that slips on easily and resists catching.

Our lab-grown diamonds provide a clear, sustainable alternative, reflecting a commitment to ethical jewelry without compromise. This mounting suits those who appreciate a sculptural silhouette that elongates the finger, ideal for slender to medium hand shapes and stackable with complementary bands.

Resizing is available to ensure a precise fit, and the semi-set design invites you to select a center stone that resonates personally. Typical lead times reflect our Brooklyn studio’s handcrafted attention to detail.

Explore this foundation in person at our Williamsburg studio or begin your custom design journey online—where expert guidance meets thoughtful craftsmanship.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio dedicated to lab-grown diamond engagement rings, blending ethical craftsmanship with local expertise to create pieces meant for daily life and lasting connection.

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.