Lab-Grown Diamond Engagement Ring

The elongated silhouette of the marquise diamond, measuring 10 by 5 millimeters, draws the eye with its tapered points and graceful presence. This semi-set solitaire ring offers a refined foundation in 18K rose gold, designed to cradle your chosen stone with precision and subtlety.

Crafted in Williamsburg, the band features a low-profile setting that sits close to the finger, minimizing snagging while maximizing comfort for daily wear. The smooth finish and balanced weight ensure the ring feels as natural as it looks, while the secure prong arrangement promises lasting stability.

Each piece reflects a commitment to ethical jewelry, showcasing lab-grown diamonds that combine clarity and sustainability without compromise. The warm blush of rose gold complements the marquise’s dramatic shape, enhancing its vintage-inspired elegance with modern restraint.

Ideal for those who appreciate architectural lines and a sleek silhouette, this mounting suits slender to medium finger sizes and pairs effortlessly with stackable bands or wedding rings. Its low profile makes it glove-friendly and unobtrusive for everyday life.

Resizing is available to ensure a perfect fit, and the semi-set design invites you to select a center stone that resonates personally, with expert guidance from our Brooklyn studio.

Explore this semi-set marquise solitaire in person at our Williamsburg studio or begin your custom design journey online. Haejin Jewelry brings expert craftsmanship and ethical clarity to lab-grown diamond engagement rings, rooted in the creative heart of Brooklyn.

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.