Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of an 8 x 4 mm marquise diamond, its tapered points drawing the eye along the finger with quiet drama. This semi-set solitaire ring offers a refined foundation in warm 14K rose gold, hand-shaped and polished in our Williamsburg studio to a soft, tactile finish that feels like a second skin.

The slender band supports a low-profile setting designed for everyday wear, balancing presence with subtlety. Each curve is carefully inspected to ensure smooth edges and a comfort fit that slips on easily beneath gloves or alongside stackable bands.

Crafted exclusively for a lab-grown center stone, this ring reflects a commitment to ethical jewelry—minimizing environmental impact without sacrificing brilliance or clarity.

Its sculptural marquise shape lends an architectural elegance, elongating the hand while maintaining a modern, minimalist silhouette. Ideal for those who appreciate artisan craftsmanship and a ring that adapts seamlessly to daily life.

Should you wish to adjust the band size, resizing is straightforward and handled with care by our in-house jewelers.

Visit our Williamsburg studio to explore this semi-set marquise solitaire or begin your custom design journey online—where expert guidance meets Brooklyn’s creative spirit.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio dedicated to lab-grown diamond engagement rings, blending ethical craftsmanship with local artisan expertise in New York City.

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.