Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, casting a slender, graceful shadow that dances across the skin. This three-stone semi-set engagement ring in 18K yellow gold frames a 12 x 6 mm marquise center with two delicate side stones, each facet sculpted to enhance the stone’s signature tapered drama.

Handcrafted in our Williamsburg studio, the ring’s low-profile setting balances presence with everyday ease, while the warm glow of yellow gold complements the diamond’s fiery brilliance. The band’s smooth comfort fit invites daily wear, its subtle curve designed to sit naturally alongside other stackable pieces or a wedding band.

Each diamond is lab-grown, offering a clarity and sparkle indistinguishable from mined stones, with a fraction of the environmental impact. This ethical choice reflects a quiet commitment to sustainability without compromising on radiance.

Ideal for those who appreciate refined geometry and a romantic silhouette, the marquise shape elongates the finger, lending an elegant, vintage-inspired allure. The semi-set design allows you to select a center stone that speaks to your personal story, making this ring uniquely yours.

Resizing is available to ensure a perfect fit, and our team is happy to guide you through care and customization options. Typical lead times reflect our dedication to meticulous craftsmanship.

Visit our Williamsburg studio to explore this design in person or begin your custom journey online. At Haejin Jewelry, we blend expert craftsmanship with ethical values to create lab-grown diamond engagement rings that resonate with Brooklyn’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.