Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, casting a slender, graceful shadow across the hand. This semi-set solitaire invites you to select a center stone that balances bold geometry with delicate refinement.

Crafted in warm 14K rose gold, the mounting features a low-profile setting designed for everyday wear. The slender prongs cradle the 8 x 4 mm marquise shape securely while maintaining a sleek profile that slips comfortably beneath gloves or sleeves. Each band is hand-finished in our Williamsburg studio, ensuring a smooth comfort fit and precise alignment.

Our diamonds are lab-grown, offering a clear, sustainable alternative that reflects a commitment to ethical jewelry without compromise on brilliance or clarity.

This ring suits those who appreciate architectural elegance paired with subtle warmth—ideal for slender fingers or as a striking stackable piece alongside complementary bands. Its low profile and secure setting make it practical for daily life, from Brooklyn streets to special moments.

Resizing is available to ensure a perfect fit, and lead times are tailored to your custom design choices.

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

Haejin Jewelry stands as a Brooklyn fine-jewelry studio specializing in lab-grown diamond engagement rings, blending expert craftsmanship with ethical sourcing and a deep connection to New York 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.