Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, its tapered points drawing the eye along a graceful arc. This semi-set halo engagement ring foundation in warm 18K rose gold awaits your choice of a 12 x 6 mm center stone, designed to amplify the marquise’s signature drama with a delicate frame of smaller diamonds.

Each band is hand-forged in our Williamsburg studio, where the rose gold is meticulously polished to a soft glow that complements the diamond’s fiery brilliance. The halo setting is crafted to sit low against the finger, offering a subtle profile that balances presence with everyday comfort. Our artisans inspect every prong and curve to ensure durability and a seamless finish.

Choosing a lab-grown diamond here supports a more sustainable approach to fine jewelry, reducing environmental impact without compromising clarity or fire.

This ring suits those who appreciate a bold yet refined statement—its elongated shape visually lengthens the finger, while the halo adds a vintage-inspired shimmer. The low-profile setting pairs well with stacking bands or a wedding ring, and the comfort fit ensures it wears effortlessly from morning light to evening glow.

We offer personalized resizing and can guide you through care to keep your ring luminous for years to come.

Visit our Williamsburg studio to explore this semi-set halo or begin your custom design journey online. At Haejin Jewelry, we blend expert craftsmanship with ethical clarity, creating lab-grown diamond engagement rings that reflect the spirit of Brooklyn’s artisan community.

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.