Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated curve of the marquise shape, casting a slender, graceful shadow across the hand. This semi-set engagement ring in 18K yellow gold awaits your choice of an 8 x 4 mm marquise lab-grown diamond, designed to showcase the stone’s tapered drama with subtle accent details that enhance its silhouette.

Crafted with a low-profile setting, the band sits close to the finger for everyday comfort and ease of wear, while the warm glow of yellow gold complements the diamond’s brilliance. Each mounting is meticulously finished and inspected in our Williamsburg studio, ensuring a smooth fit that resists snagging and layers effortlessly with other bands.

Our commitment to ethical jewelry is reflected in the lab-grown diamond option, offering clarity and sparkle with a smaller environmental footprint.

This ring suits those who appreciate a refined shape that elongates the finger and a design that balances statement with subtlety. Its comfort fit and modest height make it ideal for daily wear, including stacking with wedding bands or accent rings.

Should you need resizing, our Brooklyn studio handles adjustments with care to maintain the ring’s integrity and finish.

Explore this semi-set marquise engagement ring in person at our Williamsburg studio or begin your custom design journey online, where expert guidance awaits.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio dedicated to crafting lab-grown diamond engagement rings with ethical precision and local expertise, blending modern design with responsible craftsmanship.

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.