Lab-Grown Diamond Engagement Ring

Light catches the elongated marquise shape, its pointed ends drawing the eye along the finger with subtle drama. This semi-set halo engagement ring foundation is crafted in 14K white gold, designed to cradle a 9 x 4.5 mm marquise diamond with a low-profile setting that balances presence and practicality.

The halo setting, once the center stone is chosen, will surround the marquise with a delicate frame of smaller stones, enhancing brilliance without adding bulk. The band’s smooth finish and moderate width ensure comfort for daily wear, slipping easily beneath gloves or alongside stackable rings.

Each piece is meticulously hand-finished in our Williamsburg studio, inspected for precise prong tension and polished to a satin sheen that softens reflections while maintaining sparkle. The semi-set approach invites personalization, allowing you to select a lab-grown diamond that meets your clarity and cut preferences.

Lab-grown diamonds offer a sustainable alternative with the same optical and chemical properties as mined stones, aligning with a commitment to ethical jewelry without compromise.

This ring foundation suits those who appreciate architectural elegance paired with everyday functionality, especially hands that favor elongated shapes or seek a low-profile silhouette. Resizing is available to ensure a tailored fit.

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

Haejin Jewelry is a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, blending ethical craftsmanship with local expertise to create pieces made for life’s most meaningful moments.

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.