Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, its tapered points drawing the eye along a graceful arc. This semi-set three-stone ring invites you to select a 12 x 6 mm marquise center, poised to become the centerpiece of a bespoke design.

Crafted from warm 18K rose gold, the band’s gentle curve is balanced by the cool gleam of 18K white gold shoulders, creating a subtle contrast that enhances the diamond’s fiery brilliance. Each prong is hand-finished in our Williamsburg studio, ensuring a secure, low-profile setting that sits comfortably for daily wear.

Our commitment to lab-grown diamonds means your ring carries clarity and sparkle with a lighter environmental footprint, reflecting a modern approach to ethical jewelry.

The slender band and three-stone layout suit hands that appreciate refined detail and versatility—stackable with other bands or worn solo for understated elegance. Its low profile fits easily beneath gloves or sleeves, making it an ideal choice for everyday life.

Should you need resizing, our in-house artisans adjust the band with precision, preserving the ring’s integrity and finish.

Visit our Williamsburg studio to explore custom options or begin your design journey online, where expert guidance awaits every step of the way.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio devoted to crafting lab-grown diamond engagement rings with ethical clarity and artisanal skill, rooted in the heart of New York City’s creative 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.