Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of the marquise diamond, casting a slender, luminous shadow that dances across the skin. This three-stone semi-set ring in 14K yellow gold frames an 8 x 4 mm marquise center with delicate side stones, creating a quiet dialogue of light and shape.

Handcrafted in Williamsburg, the band’s gentle curve and polished finish offer a comfortable fit that rests low against the finger, designed for everyday wear without sacrificing elegance. The semi-set design invites you to select a lab-grown marquise diamond that balances brilliance with the distinctive tapered drama of its cut.

Each lab-grown diamond reflects a commitment to ethical sourcing and environmental mindfulness, embodying clarity without compromise. The warm glow of yellow gold complements the marquise’s elongated form, flattering slender fingers and pairing effortlessly with stackable bands or wedding bands.

Resizing is available to ensure a seamless fit, and the studio’s careful finishing process guarantees a smooth, glove-friendly profile. Whether you visit our Williamsburg studio or design online, this ring offers a personal canvas for your story.

Haejin Jewelry is a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, where expert craftsmanship meets thoughtful design and ethical values in every piece.

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.