Lab-Grown Diamond Engagement Ring

When sunlight catches the elongated silhouette of a marquise diamond, it casts a subtle, tapered sparkle that draws the eye along the finger’s natural line. This solitaire semi-set features a 7 x 3.5 mm marquise center, designed to balance presence with everyday ease.

Crafted in warm 18K rose gold, the mounting offers a low-profile setting that sits close to the skin, minimizing snagging and maximizing comfort. Each prong is meticulously shaped and polished in our Williamsburg studio to ensure secure wear and refined detail.

Our diamonds are lab-grown, reflecting a commitment to ethical sourcing and environmental mindfulness without compromising brilliance or clarity.

The slender silhouette suits those who appreciate a sleek, modern aesthetic with a hint of vintage grace. Its streamlined form pairs effortlessly with stacking bands or stands elegantly alone, while the comfort fit band supports all-day wear.

Should you need adjustments, resizing is available to ensure a perfect fit without altering the ring’s clean lines.

Explore this semi-set in person at our Williamsburg studio or begin your custom design journey online—crafted for life’s most meaningful moments.

Haejin Jewelry is a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, combining expert craftsmanship with ethical values to create pieces designed for daily life and lasting beauty.

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.