Lab-Grown Diamond Engagement Ring

Imagine the subtle elongation of your finger as a 6 x 3 mm marquise diamond begins its quiet dance of light. This semi-set engagement ring foundation in 18K white gold offers a sleek, low-profile frame designed to cradle your chosen center stone with precision.

Crafted in Williamsburg, the band’s smooth finish and secure prong arrangement ensure daily comfort without sacrificing durability. Its refined silhouette slips easily beneath gloves or alongside stackable bands, making it a versatile choice for everyday wear.

Each piece reflects a commitment to ethical jewelry through lab-grown diamonds, reducing environmental impact while maintaining exceptional clarity and brilliance.

Ideal for those who appreciate architectural elegance paired with practical design, this mounting suits slender to medium finger sizes and balances well with tapered or elongated shapes.

Should you need resizing or prefer a custom accent arrangement, our Brooklyn studio offers personalized consultations to tailor the fit and finish.

Explore this semi-set marquise ring in person at our Williamsburg studio or begin your custom design journey online, where expert guidance meets thoughtful craftsmanship.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio specializing in lab-grown diamond engagement rings, blending ethical craftsmanship with local expertise to create pieces made for life’s most meaningful moments.

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.