Lab-Grown Diamond Engagement Ring

Imagine the quiet moment when a heart-shaped diamond catches the light, its soft curves reflecting a personal promise. This semi-set engagement ring foundation in 18K yellow gold awaits your choice of a 10 x 10 mm heart diamond, designed to showcase the stone’s tender silhouette with subtle elegance.

Crafted with a low-profile setting, the band offers a smooth, comfortable fit that sits close to the finger—ideal for daily wear without catching or shifting. The warm glow of 18K yellow gold complements the diamond’s romantic shape, while the mounting’s precise prong work ensures secure placement and easy cleaning.

Each ring foundation is made in our Williamsburg studio, where lab-grown diamonds are chosen for their clarity and ethical origin, reflecting a commitment to sustainability without compromise.

This design suits those who favor understated grace and practicality, especially for hands that appreciate a sleek profile and effortless stacking with other bands. The semi-set style invites you to select a center stone that resonates with your unique story.

Resizing is available to ensure a perfect fit, and our team is happy to guide you through care tips to maintain the ring’s refined finish.

Visit our Williamsburg studio to explore this semi-set heart engagement ring or begin your custom design journey online—crafted for life’s intimate moments.

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 distinctly local sensibility.

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.