Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, its pointed ends drawing the eye along the finger with quiet drama. This three-stone semi-set engagement ring features a 6 x 3 mm marquise center, poised to be paired with your choice of lab-grown diamond or gemstone.

Crafted from warm 18K rose gold, the band is shaped with a subtle taper that balances the stone’s architectural form. Each prong is hand-finished to cradle the marquise securely while maintaining a low-profile setting that slips comfortably beneath gloves and daily wear. The side stones frame the center with gentle symmetry, enhancing the ring’s refined silhouette without excess bulk.

Our commitment to ethical jewelry is reflected in the clarity and sustainability of the lab-grown stones, offering brilliance without compromise.

Designed for those who appreciate a blend of vintage-inspired shape and modern sensibility, this ring suits slender to medium fingers and pairs effortlessly with stackable bands or a wedding band of your choice.

Should you need resizing or prefer a custom stone selection, our Brooklyn studio offers personalized consultations to ensure the ring fits your lifestyle and vision.

Visit us in Williamsburg or begin your custom design journey online to bring this marquise engagement ring to life with Haejin Jewelry’s expert craftsmanship and ethical ethos.

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.