Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, casting a delicate sparkle that seems to stretch beyond the finger. This semi-set halo engagement ring in 10K yellow gold frames a 6 x 3.5 mm marquise stone, its pointed ends drawing the eye along a graceful arc.

Crafted with a low-profile halo setting, the band offers a subtle lift that enhances brilliance without bulk, ensuring comfortable daily wear. The warm glow of 10K yellow gold complements the diamond’s fiery facets, while meticulous hand finishing smooths every edge for a seamless fit.

Each lab-grown diamond is chosen for clarity and ethical origin, reflecting a commitment to sustainability without compromise on beauty. The marquise shape’s tapered form elegantly elongates the finger, ideal for those seeking a ring that balances boldness with refined femininity.

Designed for ease, this semi-set allows you to select a center stone that resonates personally, with resizing available to ensure a perfect fit. Its slender band layers effortlessly with other rings or stands alone as a statement of quiet romance.

Visit our Williamsburg studio to explore this design in person or begin your custom journey online—crafted for life’s intimate moments.

Haejin Jewelry is a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, blending expert craftsmanship with ethical sourcing and a deep connection to New York City’s creative spirit.

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.