Lab-Grown Diamond Engagement Ring

The elongated silhouette of the 7 x 3.5 mm marquise diamond catches light with a subtle, tapered brilliance that draws the eye along the finger’s natural line. This semi-set solitaire ring offers a refined foundation, crafted in 14K white gold for a cool, luminous backdrop that complements the stone’s sharp geometry.

Expertly engineered for everyday wear, the low-profile setting keeps the diamond close to the hand, reducing snagging while maintaining an elegant presence. The band’s smooth finish and balanced weight ensure comfort throughout daily routines, whether worn solo or paired with a wedding band.

Each piece reflects our commitment to sustainability, featuring a lab-grown diamond that delivers clarity and sparkle without compromise. The ethical choice aligns with a modern lifestyle rooted in mindful luxury.

Designed for those who appreciate architectural form and subtle sophistication, this mounting suits slender to medium finger sizes, enhancing the hand’s natural grace. Its streamlined profile fits easily under gloves and layers seamlessly with other bands.

Should you need a custom adjustment, resizing is handled delicately in-studio to preserve the ring’s precise proportions and finish.

Explore this semi-set marquise solitaire in our Williamsburg studio or begin your custom design journey online—where expert guidance meets Brooklyn craftsmanship.

Haejin Jewelry stands as a Brooklyn-based fine-jewelry studio dedicated to lab-grown diamond engagement rings, blending expert craftsmanship with ethical sourcing and a local design experience that honors the 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.