Lab-Grown Diamond Engagement Ring

The elongated silhouette of a 10 x 5 mm marquise diamond captures light with a subtle, tapered drama that naturally elongates the finger. This semi-set halo engagement ring in 10K yellow gold offers a low-profile design, balancing visual impact with everyday comfort.

Crafted in Williamsburg, the band is carefully shaped for a smooth fit, with a halo setting that enhances the center stone’s brilliance without adding bulk. The polished yellow gold shank is finished to a soft sheen, ensuring it sits comfortably beneath gloves or alongside stackable bands.

Each piece is designed with ethical clarity in mind, featuring a lab-grown diamond that reflects a commitment to sustainability and responsible sourcing. The semi-set mounting allows you to select a marquise stone that meets your exact preferences, supported by a secure, precision-crafted setting.

Ideal for those who appreciate architectural elegance paired with practical wearability, this ring suits hands that favor a slender, refined profile. Its low height and balanced proportions make it a reliable choice for daily wear.

Resizing is available to ensure a perfect fit, and our Brooklyn studio welcomes you to explore custom options or view this semi-set halo in person. Design consultations are pressure-free and tailored to your vision.

Haejin Jewelry is a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, where expert craftsmanship meets ethical design in the heart of Williamsburg.

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.