Lab-Grown Diamond Engagement Ring

Light catches the elongated silhouette of a 10 x 5 mm marquise diamond, its tapered points drawing the eye along the finger with subtle drama. This semi-set solitaire ring in 18K white gold offers a refined foundation, ready to cradle a center stone that balances architectural elegance with everyday grace.

Crafted with a low-profile setting, the band sits close to the hand, minimizing snagging while maintaining a confident presence. The smooth finish and comfort fit ensure it wears seamlessly from morning coffee in Williamsburg to evening gatherings. Each piece undergoes meticulous inspection in our Brooklyn studio, where precision meets quiet durability.

Our commitment to lab-grown diamonds means this ring supports ethical sourcing and environmental mindfulness without compromising brilliance or clarity.

Designed for those who appreciate clean lines and a silhouette that elongates the hand, this mounting suits a variety of personal styles and pairs effortlessly with stacking bands or a wedding band. Its subtle height and secure prongs make it glove-friendly and practical for daily wear.

Should you need resizing or custom adjustments, our in-studio team handles these with care, ensuring your ring fits perfectly over time.

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

Haejin Jewelry stands as a Brooklyn fine-jewelry studio dedicated to crafting lab-grown diamond engagement rings with ethical precision and local expertise, blending modern design with conscientious craftsmanship 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.