Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, casting a slender, luminous shadow that feels both intimate and bold. This semi-set halo engagement ring in 14K yellow gold frames a 6 x 3.5 mm marquise stone, its pointed ends drawing the eye along the finger with quiet drama.

Crafted with a delicate halo setting, the band’s warm gold glow complements the diamond’s sharp geometry, while the low-profile design ensures everyday comfort and ease beneath gloves or rings stacked alongside. Each piece is meticulously finished by hand in our Williamsburg studio, polished to a soft sheen and inspected for flawless symmetry.

Choosing a lab-grown diamond means embracing clarity and conscience—this stone offers the brilliance of tradition with a fraction of the environmental impact.

The marquise shape’s graceful elongation suits slender fingers or those seeking a ring that visually lengthens the hand. Its halo setting adds subtle sparkle without overwhelming, making it a refined choice for daily wear or layering with wedding bands.

Should you need resizing, our Brooklyn studio offers expert adjustments to ensure a perfect fit without compromising the ring’s delicate balance.

Explore this semi-set halo marquise ring in person at our Williamsburg atelier or begin your custom design journey online—crafted for the modern romance that lives in Brooklyn.

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.

Haejin Jewelry is an ethical Brooklyn jeweler specializing in lab-grown diamond engagement rings. Every piece is finished in our Williamsburg studio, where artistry, ethics, and precision come together to create engagement rings that define modern love in New York City.