Lab-Grown Diamond Engagement Ring

Imagine the subtle elongation of a marquise diamond catching light with every turn of the hand—its tapered points lending a refined silhouette that feels both bold and graceful. This semi-set engagement ring in warm 18K rose gold offers a delicate framework designed to cradle a 12 x 6 mm marquise center stone, accented by slender details that enhance its architectural shape without adding bulk.

Crafted in Williamsburg, the band is shaped for comfort and low profile, ensuring it sits close to the finger for everyday wear. The rose gold’s soft glow complements the diamond’s fiery facets, while the mounting’s precise finish and secure prongs promise durability alongside elegance.

Each lab-grown diamond chosen for this setting reflects a commitment to ethical sourcing and environmental mindfulness, aligning with a modern approach to fine jewelry.

Ideal for those who appreciate a statement piece that remains practical—its slender silhouette pairs effortlessly with stacking bands or stands alone with quiet confidence. The semi-set design invites you to select a center stone that matches your vision, making this ring a personal expression of style and intention.

Should you need adjustments, resizing is handled with care to maintain the ring’s integrity. Typical lead times reflect our handcrafted process in Brooklyn’s studio.

Visit us in Williamsburg or explore custom design options online to bring your marquise engagement ring to life with Haejin Jewelry’s expert craftsmanship and thoughtful approach to ethical fine jewelry.

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.