Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, its pointed ends tracing a delicate arc that seems to cradle the hand. This three-stone semi-set engagement ring offers a foundation for a 12 x 6 mm marquise center, poised to elongate the finger with a graceful, tapered drama.

Crafted from warm 14K yellow gold, the band is shaped for comfort and daily wear, its gentle curve sitting low to the finger to avoid catching. Each prong is meticulously finished to secure your chosen stone while allowing maximum light to dance through the facets, enhancing the diamond’s signature brilliance.

Our commitment to sustainability is reflected in the lab-grown diamond option, offering clarity and sparkle without compromise to the earth.

This design suits those who appreciate a romantic statement balanced with practical elegance—its low-profile setting pairs beautifully with stacking bands or worn solo, and the smooth shank fits comfortably beneath gloves or daily wear.

Should you need resizing, our Brooklyn studio handles adjustments with care to maintain the ring’s integrity and finish.

We invite you to explore this semi-set marquise ring in our Williamsburg studio or begin your custom design journey online, where expert guidance meets thoughtful craftsmanship.

Haejin Jewelry is a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, blending ethical craftsmanship with local artistry 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.