Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated curve of a marquise diamond, casting a slender, dramatic shadow across the hand. This semi-set solitaire invites you to select a 5 x 3 mm center stone that balances boldness with subtlety.

Crafted in warm 18K yellow gold, the mounting features a low-profile setting designed for everyday wear. Its streamlined prongs secure the stone close to the finger, minimizing snagging while maintaining a confident silhouette. The band’s smooth finish and gentle taper ensure comfort without sacrificing presence.

Each ring is finished by hand in our Williamsburg studio, where precision meets quiet craftsmanship. The lab-grown diamond option reflects a commitment to ethical sourcing and sustainability, offering clarity and brilliance without compromise.

Ideal for those who appreciate refined geometry and a ring that integrates seamlessly with daily life, this solitaire complements slender fingers and pairs well with stackable bands. Its modest height fits comfortably under gloves or sleeves, making it a practical choice for active lifestyles.

Should you need resizing or guidance on selecting the perfect marquise stone, our Brooklyn studio team is ready to assist with care and expertise.

Explore this semi-set marquise solitaire in person or begin your custom design journey online. At Haejin Jewelry, we specialize in lab-grown diamond engagement rings crafted with ethical precision and Brooklyn-born artistry.

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.