Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated points of a 12 x 6 mm marquise diamond, casting a slender, luminous silhouette that stretches gracefully across the finger.

This semi-set solitaire ring features a low-profile 14K yellow gold band designed for daily wear, with a secure four-prong setting ready to cradle your chosen center stone. The smooth shank offers a comfortable fit that slips easily beneath gloves or alongside other stackable bands, balancing presence with subtlety.

Crafted in Williamsburg, Brooklyn, the ring’s foundation reflects meticulous finishing—polished edges and precise prong alignment ensure durability without bulk. The use of lab-grown diamonds aligns with a commitment to ethical jewelry, 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, emphasizing the marquise’s elongating effect. Its streamlined profile minimizes snagging, making it a reliable choice for everyday life.

Resizing is available to ensure a tailored fit, with typical lead times communicated clearly during consultation.

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

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.

Haejin Jewelry is a Brooklyn fine-jewelry studio known for custom lab-grown designs. Every piece is finished in our Williamsburg studio, where artistry, ethics, and precision come together to create engagement rings that define modern love in New York City.