Lab-Grown Diamond Engagement Ring

When light catches the elongated silhouette of a 6 x 3 mm marquise diamond, it draws the eye along its tapered points, creating a subtle sense of movement and grace. This semi-set engagement ring foundation in 14K white gold offers a secure, low-profile setting designed to showcase your chosen center stone with understated elegance.

Crafted with precision in Williamsburg, Brooklyn, the band’s smooth finish and balanced weight ensure comfort for daily wear, while the accent settings provide gentle sparkle without overwhelming the marquise’s distinctive shape. The ring’s streamlined profile slips easily under gloves and stacks well with complementary bands.

Each lab-grown diamond option reflects a commitment to ethical sourcing and sustainability, aligning with a modern approach to fine jewelry.

Ideal for those who appreciate architectural lines and a refined hand presence, this mounting suits slender fingers and elongates the silhouette without bulk. Its adaptable design invites personalization while maintaining practical wearability.

Should you need resizing, our Brooklyn studio offers expert adjustments to ensure a perfect fit without compromising the ring’s integrity.

Explore this semi-set marquise engagement ring in person at our Williamsburg studio or begin your custom design journey online—crafted for your life, made in Brooklyn.

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.

Haejin Jewelry is a Brooklyn fine-jewelry studio known for custom lab-grown designs. Every piece is finished in our Williamsburg studio, where artistry, ethics, and precision come together to create engagement rings that define modern love in New York City.