Lab-Grown Diamond Engagement Ring

Imagine the delicate silhouette of a marquise diamond, its elongated shape tracing a subtle arc along the finger, catching light with a quiet, tapered brilliance. This semi-set solitaire ring invites you to select a center stone that measures 9 by 4.5 millimeters—a shape known for its elegant drama and hand-flattering elongation.

Crafted from 18K white gold, the mounting offers a refined balance between presence and comfort. The slender band is polished to a soft sheen, designed to sit low and close, making it an ideal choice for daily wear or stacking alongside complementary bands. The prong setting is engineered to secure your chosen stone while allowing maximum light to dance through its facets.

Each piece reflects our commitment to ethical jewelry, featuring lab-grown diamonds that deliver clarity and brilliance with a smaller environmental footprint. This approach aligns with a modern sensibility rooted in sustainability without compromise.

Its streamlined profile suits those who appreciate subtle sophistication—whether you have slender or fuller fingers, the marquise shape naturally elongates the hand, enhancing grace with every gesture. The comfort fit band ensures ease beneath gloves or during everyday moments.

Should you need resizing or wish to explore custom options, our Brooklyn studio offers a pressure-free experience, guiding you through every detail with care and expertise.

Visit us in Williamsburg or begin your custom design journey online to bring this poetic solitaire to life. Haejin Jewelry is a Brooklyn fine-jewelry studio specializing in lab-grown diamond engagement rings, where ethical craftsmanship meets thoughtful design in the heart of New York City.

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.