Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated points of the marquise diamond, casting a slender, elegant shadow that seems to stretch beyond the finger. This 6 x 3.5 mm marquise center stone is set in a sleek platinum band designed for understated resilience.

Expertly crafted with a low-profile setting, the ring sits close to the hand, minimizing snagging while maximizing comfort for everyday wear. The platinum’s cool luster complements the diamond’s sharp geometry, with subtle accent stones adding a quiet sparkle without overwhelming the design. Each piece is meticulously finished and inspected in our Williamsburg studio to ensure precision and durability.

Our diamonds are lab-grown, offering a clear, sustainable alternative that reduces environmental impact without compromising brilliance.

The slim silhouette suits those who appreciate refined lines and a secure fit, ideal for stacking or wearing solo. Its modest height works well with gloves or layered jewelry, making it a versatile choice for daily life.

Should you need resizing, we handle adjustments carefully to maintain the integrity of the setting and balance of the design.

Visit our Williamsburg studio to experience this marquise engagement ring firsthand or begin your custom design journey online with Haejin Jewelry’s expert guidance.

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.