Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, its tapered points drawing the eye along the length of the finger. This semi-set halo engagement ring in 10K yellow gold offers a refined foundation for a 12 x 6 mm marquise center, designed to showcase the stone’s dramatic shape without overwhelming it.

Crafted with a low-profile halo setting, the band sits close to the finger, balancing presence with everyday comfort. The warm glow of yellow gold complements the marquise’s brilliance, while the halo enhances sparkle without adding bulk. Each ring is meticulously finished and inspected in our Williamsburg studio to ensure a seamless fit and enduring wearability.

Our commitment to ethical jewelry is reflected in the choice of lab-grown diamonds, combining clarity and sustainability with Brooklyn craftsmanship.

Ideal for those who appreciate architectural elegance paired with practical design, this ring’s slender band and low profile make it glove-friendly and stackable with other bands. The semi-set style invites you to select a center stone that resonates personally, allowing for a truly custom engagement experience.

Should you need resizing or guidance on stone selection, our team offers attentive support to ensure your ring fits perfectly and reflects your vision.

Visit our Williamsburg studio or explore the Ring Builder online to begin crafting a marquise halo ring that balances bold geometry with everyday grace.

Haejin Jewelry stands as a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, where expert craftsmanship and ethical sourcing meet thoughtful design for modern life.

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.