Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated points of a marquise diamond, casting a delicate shadow that dances across the hand. This semi-set three-stone ring invites you to select a 10 x 5 mm marquise center, its tapered silhouette lending a graceful drama to the design.

Crafted from warm 18K rose gold, the band is finished with a soft polish that complements the diamond’s sharp geometry. The three-stone setting balances presence with wearability, designed low-profile to sit comfortably beneath gloves or alongside stackable bands. Each prong is hand-set in our Williamsburg studio, ensuring precise alignment and secure hold.

Our diamonds are lab-grown, offering a clarity and brilliance that honors both beauty and sustainability without compromise.

This ring suits those who appreciate architectural elegance with a subtle romantic edge—ideal for slender fingers or anyone seeking a statement that remains refined in daily life.

Should you need resizing, our Brooklyn workshop handles adjustments with care, typically within two weeks.

Explore this semi-set marquise engagement ring in person at our Williamsburg studio or begin your custom design journey online, where expert guidance awaits.

Haejin Jewelry blends expert craftsmanship with ethical sourcing in the heart of Brooklyn, creating lab-grown diamond engagement rings that reflect modern values and artisanal skill.

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.