Lab-Grown Diamond Engagement Ring

Imagine the subtle elongation of a marquise diamond catching morning light, its pointed ends drawing the eye along the finger’s natural line. This semi-set solitaire ring in warm 18K rose gold offers a refined foundation for a 9 x 4.5 mm marquise center, designed with a low-profile setting that nestles close to the skin for everyday comfort.

Crafted in Williamsburg, the band’s smooth finish and secure prongs ensure durability without bulk, making it glove-friendly and ideal for stacking with complementary bands. The rose gold’s gentle blush complements the marquise’s dramatic silhouette, balancing modern geometry with a soft glow.

Each ring is made to order with a lab-grown diamond, reflecting a commitment to ethical sourcing and environmental mindfulness without compromising brilliance or clarity.

This design suits those who appreciate architectural elegance paired with practical wearability—especially hands that favor a slender, elongated look. The semi-set style invites you to select a center stone that matches your personal vision, with expert guidance available throughout the process.

Resizing is straightforward, handled in-studio to maintain the ring’s integrity and comfort fit. Typical lead times accommodate careful craftsmanship and quality inspection.

Explore this piece in our Williamsburg studio or begin your custom design journey online, where expert consultation awaits to bring your vision to life.

Haejin Jewelry stands as a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, blending ethical craftsmanship with local expertise to create pieces made 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.