Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated points of the marquise diamond, casting a delicate, tapered glow that dances with every movement. This three-stone engagement ring, set in cool platinum, balances architectural drama with refined subtlety.

Each gem is meticulously secured in a low-profile setting that hugs the finger comfortably, crafted by hand in our Williamsburg studio. The smooth platinum band is polished to a satin finish, offering a modern yet tactile feel that wears effortlessly day to night.

Our lab-grown marquise diamonds reflect a commitment to clarity and sustainability, grown with precision to reveal sharp facets and a lively brilliance without the environmental cost of traditional mining.

Designed for those who appreciate sculptural elegance, this ring suits slender to medium fingers, its elongated shape visually lengthening the hand. The three-stone layout adds dimension while remaining stack-friendly and glove-compatible.

Should you need a custom fit, resizing is available with care to preserve the ring’s balanced silhouette.

Visit our Brooklyn studio to experience this piece firsthand or begin your custom design journey online—crafted for daily life, made with intention.

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.

Haejin Jewelry is an ethical Brooklyn jeweler specializing in lab-grown diamond engagement rings. Every piece is finished in our Williamsburg studio, where artistry, ethics, and precision come together to create engagement rings that define modern love in New York City.