Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, its tapered points drawing the eye along the hand with subtle drama. This semi-set solitaire ring awaits your choice of a 10 x 5 mm marquise stone, offering a sleek foundation crafted from warm 14K rose gold that gently curves into a low-profile white gold shank for everyday ease.

Expertly engineered for comfort, the band’s smooth interior and secure prong setting ensure the ring sits close to the finger without catching, making it an ideal companion for daily wear. Each piece is meticulously finished and inspected in our Williamsburg studio, where precision meets quiet refinement.

Choosing a lab-grown diamond here means embracing clarity and brilliance with a lighter environmental footprint, reflecting a modern commitment to ethical jewelry.

The slender shape and moderate size suit hands seeking a balance between statement and subtlety, while the solitaire design pairs effortlessly with stacking bands or a wedding ring. Its low profile also fits comfortably under gloves or sleeves, designed for life’s varied moments.

Should you need resizing or prefer a custom setting adjustment, our Brooklyn studio offers personalized consultations to ensure your ring fits perfectly.

Explore this semi-set marquise solitaire in person or begin your custom design journey online—each step guided by expert care and Brooklyn craftsmanship.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio dedicated to lab-grown diamond engagement rings, blending ethical craftsmanship with local expertise to create pieces made for a lifetime.

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.