Lab-Grown Diamond Engagement Ring

The elongated silhouette of the marquise center stone, measuring 6 by 3.5 millimeters, draws the eye with its tapered drama and subtle hand-lengthening effect. This semi-set halo engagement ring foundation is crafted in warm 18K rose gold, its low-profile setting designed to sit close to the finger for everyday comfort without sacrificing sparkle.

Each band is meticulously finished in our Williamsburg studio, polished to a soft sheen that complements the gentle blush of rose gold. The halo setting, ready to frame your chosen marquise diamond, balances brilliance with wearability—ideal for stacking or solo wear, and glove-friendly for seasonal ease.

Our commitment to sustainability is reflected in the exclusive use of lab-grown diamonds, offering clarity and ethical provenance without compromise.

With a comfort fit shank and a design mindful of daily life, this mounting suits those who appreciate refined geometry paired with practical elegance. The semi-set format invites you to select a center stone that resonates personally, ensuring a truly bespoke expression.

Should you need resizing or have questions about care, our Brooklyn studio provides attentive guidance to ensure your ring fits seamlessly into your life.

Explore this marquise halo semi-set in person at our Williamsburg atelier or begin your custom design journey online—crafted for those who value intentional beauty and thoughtful craftsmanship.

Haejin Jewelry stands as a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, where expert design meets ethical craftsmanship in every piece.

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.