Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, casting a delicate dance of light that seems to stretch beyond the finger. This semi-set halo engagement ring in 18K yellow gold frames a 12 x 6 mm marquise stone, its pointed ends drawing the eye along the hand’s natural lines with a quiet elegance.

Crafted in Williamsburg, the band’s warm gold glow complements the diamond’s sharp geometry, while the halo setting enhances brilliance without adding bulk. The low-profile design ensures everyday comfort, with a smooth finish that feels as refined as it looks. Each piece is meticulously inspected to meet exacting standards, reflecting the studio’s commitment to thoughtful craftsmanship.

Our diamonds are lab-grown, offering a clarity and sparkle that honors both beauty and sustainability. This ring suits those who appreciate a blend of bold shape and subtle detail—ideal for hands that favor slender, elongated forms or for stacking alongside simpler bands.

Should you need a custom fit, resizing is handled with care to preserve the ring’s integrity. Lead times are transparent and tailored to your design journey.

Visit our Williamsburg studio to explore this semi-set marquise halo or begin your custom design online. At Haejin Jewelry, we shape your vision into an ethical, expertly crafted symbol of commitment, rooted in Brooklyn’s vibrant 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.