Lab-Grown Diamond Engagement Ring

Imagine the subtle elongation of your finger, framed by a marquise diamond that balances sharp geometry with graceful curves. This semi-set engagement ring in 18K rose gold awaits your choice of a 7 x 3.5 mm center stone, offering a distinctive silhouette that feels both modern and intimate.

The band’s low-profile design ensures it sits close to the finger, minimizing catch and maximizing comfort for everyday wear. Crafted in warm rose gold, the mounting features delicate accent settings that enhance the marquise’s tapered drama without overwhelming its refined shape. Each piece is meticulously finished and inspected in our Williamsburg studio, ensuring a smooth comfort fit that layers effortlessly with other bands.

Our lab-grown diamonds provide the same optical brilliance as mined stones with a significantly lighter environmental footprint, reflecting a commitment to ethical jewelry without compromise.

This ring suits those who appreciate architectural elegance paired with practical design—ideal for hands that favor slender, elongated forms and a subtle statement. Its semi-set nature invites you to select a center diamond that perfectly matches your vision and lifestyle.

Should you need resizing or guidance on selecting the ideal diamond, our Brooklyn studio offers personalized support with thoughtful timing and care.

Visit us in Williamsburg or begin your custom design journey online to bring this distinctive marquise engagement ring to life with Haejin Jewelry’s expert craftsmanship and ethical 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.