Lab-Grown Diamond Engagement Ring

The elongated silhouette of the marquise diamond, measuring 8 by 4 millimeters, draws the eye with its tapered points and graceful presence. This solitaire semi-set ring offers a streamlined foundation crafted from 14K yellow gold, designed to cradle your chosen stone securely while maintaining a low profile that slips comfortably beneath daily gloves or sleeves.

Each band is hand-finished in Williamsburg, Brooklyn, with a focus on smooth edges and a subtle comfort fit that balances durability with ease of wear. The semi-set style invites you to select a marquise center diamond that reflects your personal brilliance, while the mounting’s precise prong placement ensures stability without bulk.

Our commitment to ethical jewelry is reflected in the exclusive use of lab-grown diamonds, offering clarity and sparkle with a reduced environmental footprint.

Ideal for those who appreciate architectural elegance paired with practical design, this mounting suits slender to medium finger sizes and layers well with stackable bands or wedding rings. Its modest height and secure setting make it a reliable choice for everyday wear.

Should you need resizing or guidance on selecting the perfect marquise diamond, our Brooklyn studio team is ready to assist with expert advice and careful craftsmanship.

Visit us in Williamsburg or explore custom design options online to bring your vision to life with Haejin Jewelry’s thoughtful approach to lab-grown diamond engagement rings.

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 local design experience rooted in New York City.

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.