Lab-Grown Diamond Engagement Ring

When sunlight catches the elongated curves of a marquise diamond, it casts a slender, luminous silhouette that seems to stretch beyond the finger. This semi-set solitaire invites you to select a 9 x 4.5 mm marquise stone, whose tapered points and graceful profile evoke a quiet drama and refined elegance.

Crafted from 18K white gold, the mounting balances a delicate presence with sturdy craftsmanship. The slender prongs cradle the stone securely while allowing light to flood its facets, enhancing brilliance without bulk. The band’s smooth finish and modest width ensure a comfortable fit for daily wear, slipping easily beneath gloves or alongside a wedding band.

Each piece is hand-finished in our Williamsburg studio, where precision meets thoughtful design. The low-profile setting keeps the ring close to the hand, ideal for those who favor subtle sophistication over flash.

Our commitment to ethical jewelry shines through the choice of lab-grown diamonds—cultivated with minimal environmental impact and exceptional clarity. This ring suits someone who appreciates modern romance with a conscience.

Should you wish to adjust sizing or explore stone options, our Brooklyn studio offers personalized consultations to guide your selection and ensure a perfect fit.

Discover the art of custom design in Brooklyn by visiting us in Williamsburg or begin crafting your vision online. Haejin Jewelry is proud to be a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, blending expert craftsmanship with ethical values and local authenticity.

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.