Lab-Grown Diamond Engagement Ring

Imagine the subtle elongation of a slender finger, crowned by a marquise diamond’s tapered silhouette catching light with quiet drama. This semi-set engagement ring foundation in 10K yellow gold awaits your choice of a 5 x 3 mm marquise center, designed to sit low against the hand for everyday ease.

Crafted with precision, the band’s smooth finish and secure prong setting ensure comfort and durability without excess height. Its streamlined profile slips effortlessly beneath gloves and stacks well with complementary bands, making it a versatile companion for daily wear.

Each piece embraces the clarity and sustainability of lab-grown diamonds, reflecting a commitment to ethical jewelry without compromise. The warm glow of yellow gold enhances the marquise’s vintage-inspired shape, balancing modern minimalism with classic appeal.

Ideal for those who appreciate refined engineering and understated elegance, this mounting suits slender to medium finger sizes, offering a balanced hand presence without overwhelming scale. Resizing is available to ensure a precise fit.

Explore this semi-set ring in our Williamsburg studio or begin your custom design journey online—crafted for life’s intimate moments, shaped by Brooklyn’s artisanal spirit.

Haejin Jewelry stands as a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, blending expert craftsmanship with ethical sourcing and local artistry to create pieces meant for everyday grace.

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.

Finished for daily wear — a low-profile silhouette and polished edges help minimize snagging.