Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, casting a slender, graceful shadow across the hand. This semi-set solitaire invites you to choose a center stone that echoes your unique story, its 9 by 4.5 mm proportions offering a striking balance of drama and elegance.

Crafted from warm 10K yellow gold, the mounting is shaped with a delicate yet secure prong setting designed to showcase the marquise’s tapered points while keeping a low profile for everyday wear. The band’s gentle curve and smooth finish ensure comfort, making it a natural companion for stacking or solo wear.

Each piece reflects a commitment to ethical jewelry, featuring lab-grown diamonds that offer clarity and brilliance without compromise to the earth.

This ring suits those who appreciate refined geometry and a touch of vintage allure, especially flattering on slender fingers where the marquise shape elongates the hand. Its modest height slips easily under gloves or sleeves, ideal for daily life in Brooklyn’s vibrant rhythm.

Should you need resizing or wish to explore stone options, our in-studio experts guide you through a seamless process tailored to your vision.

Visit our Williamsburg studio or begin your custom design journey online—where craftsmanship meets conscious luxury in every detail.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio devoted to lab-grown diamond engagement rings, blending expert craftsmanship with ethical sourcing and a distinctly local 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.