Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, casting a delicate shadow that dances with every movement. This three-stone semi-set engagement ring in 18K rose gold frames a 10 x 5 mm marquise center with two gently tapering side stones, each carefully positioned to enhance the stone’s signature pointed elegance.

Handcrafted in our Williamsburg studio, the band’s warm rose gold is polished to a soft glow, its slender profile designed for everyday wear without catching or discomfort. The low-profile setting balances presence with practicality, allowing the ring to nestle comfortably beneath gloves or alongside stackable bands.

Each lab-grown diamond is selected for clarity and brilliance, reflecting a commitment to sustainable, ethical jewelry without compromise. The marquise shape’s graceful elongation flatters a variety of hand sizes, offering a refined yet striking statement for those who appreciate subtle drama.

Should you wish to adjust the fit, resizing is available through our Brooklyn workshop, ensuring the ring remains as comfortable as it is captivating. Lead times are typically four to six weeks, allowing for meticulous finishing and inspection.

Explore this semi-set design in person at our Williamsburg studio or begin your custom journey online, where expert guidance awaits to bring your vision to life.

Haejin Jewelry stands as a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, blending expert craftsmanship with ethical sourcing and a deep connection to New York City’s artisan 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.