Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated points of an 8 x 4 mm marquise diamond, casting a slender, dramatic silhouette across the hand. This solitaire semi-set ring in 14K yellow gold offers a refined foundation for your chosen stone, designed with a low-profile bezel setting that keeps the diamond secure yet unobtrusive.

Crafted in Williamsburg, the band’s gentle curve and comfort fit ensure it rests naturally for daily wear, while the polished finish highlights the warmth of the yellow gold. The mounting’s streamlined design minimizes snagging, making it ideal for an active lifestyle.

Each lab-grown diamond option reflects a commitment to ethical sourcing and sustainability, offering clarity and brilliance without compromise. The marquise shape’s tapered points visually elongate the finger, lending a sleek elegance that pairs well with stacking bands or worn solo.

Should you need resizing, our in-studio experts handle adjustments with precision to maintain the ring’s balance and comfort. Typical lead times accommodate thoughtful customization without rush.

Explore this semi-set marquise engagement ring in our Williamsburg studio or begin your custom design journey online—where craftsmanship meets conscious choice.

Haejin Jewelry stands as a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, blending expert craftsmanship with ethical values and local artistry.

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.