Lab-Grown Diamond Engagement Ring

Sunlight catches the gentle curve of a 12 mm round diamond, poised to become the heart of your story. This semi-set solitaire ring offers a graceful foundation, crafted from warm 10K yellow gold that invites a subtle glow against the skin.

Hand-forged in our Williamsburg studio, the band balances strength with refined comfort, its smooth interior contour designed for daily wear. The low-profile setting ensures the diamond sits close to the finger, perfect for layering with other bands or wearing solo with quiet confidence.

Each piece embraces the clarity and brilliance unique to lab-grown diamonds, reflecting a commitment to ethical sourcing and environmental mindfulness without compromise.

Ideal for those who appreciate classic geometry with a modern touch, this solitaire mounting suits a variety of diamond cuts but especially highlights the round shape’s timeless sparkle and lively fire. Its modest height and comfort fit make it glove-friendly and easy to wear through every moment.

Should you wish to adjust the band size, our in-studio experts offer precise resizing to ensure a seamless fit.

Explore this semi-set solitaire in person at our Williamsburg studio or begin your custom design journey online—crafted for the rhythm of your life.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio dedicated to expert craftsmanship and ethical lab-grown diamond engagement rings, blending local artistry with sustainable values in every creation.

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.