Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated points of a marquise diamond, casting a delicate shadow that dances along the finger’s curve. This semi-set solitaire invites you to choose a center stone that measures 12 by 6 millimeters, offering a striking silhouette that elongates the hand with tapered drama.

Crafted from solid 18K yellow gold, the mounting is shaped with artisan precision in our Williamsburg studio. The slender band balances strength and subtlety, finished with a smooth comfort fit that feels natural for daily wear. Its low-profile setting keeps the diamond close to the skin, minimizing snagging while maximizing light play.

Each ring foundation is designed to showcase the brilliance of a lab-grown diamond, reflecting our commitment to ethical jewelry that honors both beauty and sustainability.

This solitaire suits those who appreciate bold geometry paired with understated elegance—ideal for stacking with complementary bands or worn solo as a statement of refined taste. The semi-set design allows for personalized selection of your marquise stone, ensuring a perfect match in size and clarity.

Resizing is available to ensure a seamless fit, and our Brooklyn studio welcomes you to explore custom options in person or through our online design experience.

Discover the art of fine jewelry with Haejin Jewelry, where expert craftsmanship meets ethical sourcing in the heart of Williamsburg, Brooklyn. We specialize in lab-grown diamond engagement rings designed to reflect your unique story with modern sophistication.

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.