Lab-Grown Diamond Engagement Ring

Light catches the elongated points of the marquise center, casting a subtle, graceful silhouette that feels both bold and refined. This three-stone semi-set features an 8 x 4 mm marquise lab-grown diamond, poised to become the centerpiece of a custom engagement ring crafted in 10K white gold.

Each band is hand-shaped in our Williamsburg studio, with a low-profile setting designed for everyday wear. The side stones cradle the center with delicate prongs, balancing sparkle and security while maintaining a sleek, comfortable fit that slides easily beneath gloves or sleeves.

Our diamonds are sustainably grown, offering clarity and brilliance without the environmental cost of traditional mining. This ethical choice aligns with a modern commitment to responsible luxury.

The slender white gold band complements the marquise’s tapered drama, ideal for those who appreciate architectural elegance and a ring that feels light on the hand. Its design invites stacking or pairing with a wedding band for a layered look.

Should you need resizing, our in-house artisans ensure a precise adjustment without compromising the ring’s integrity or finish.

Explore this semi-set in person at our Williamsburg studio or begin your custom design journey online—crafted for your story, shaped by expert hands.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio dedicated to lab-grown diamond engagement rings, blending ethical craftsmanship with local artistry to create pieces that resonate beyond the moment.

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.