Lab-Grown Diamond Engagement Ring

Soft light spills across the gently rounded edges of a 10 x 10 mm cushion diamond, waiting to be set in a three-stone embrace. This semi-set engagement ring foundation, crafted from cool 18K white gold, offers a sleek, low-profile silhouette that balances presence with everyday ease.

Each band is hand-finished in our Williamsburg studio, where artisans refine the smooth comfort fit and secure prong settings to cradle your chosen center stone. The three-stone layout invites personal expression, framing the cushion’s vintage-inspired glow with two side diamonds or gems of your choice.

Our commitment to lab-grown diamonds ensures clarity and brilliance without compromise, reflecting a sustainable approach to fine jewelry. The 18K white gold’s subtle sheen complements the cushion’s soft facets, creating a harmonious play of light suited for daily wear.

Designed for those who appreciate understated elegance, this mounting’s low profile slips easily beneath gloves and stacks effortlessly with wedding bands or accent rings. Its balanced width and gentle curve make it a natural fit for a variety of hand shapes and sizes.

Should you need resizing or prefer a custom consultation, our Brooklyn studio welcomes you to explore options with no pressure and full transparency.

Discover the possibilities of this three-stone cushion semi-set in Williamsburg or begin your custom design journey online. Haejin Jewelry brings expert craftsmanship and ethical clarity to lab-grown diamond engagement rings, rooted in the creative heart of Brooklyn’s fine-jewelry scene.

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.