Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, casting a slender, graceful shadow that seems to dance with every movement. This semi-set engagement ring invites you to choose a center stone that embodies that same refined elegance.

Crafted in warm 18K yellow gold, the mounting features a delicate solitaire setting designed to cradle a 9 x 4.5 mm marquise diamond securely while maintaining a low profile. The slender prongs curve gently, allowing light to flood the stone’s pointed ends, enhancing its signature tapered drama. The band’s smooth finish and subtle taper ensure comfortable wear, whether worn alone or stacked with complementary bands.

Each piece is meticulously hand-finished in our Williamsburg studio, where precision meets quiet artistry. The semi-set design offers flexibility, allowing you to select a lab-grown diamond that aligns with your vision and values—clear, sustainable, and traceable.

Ideal for those who appreciate a ring that feels as natural on the hand as it looks striking from afar, this setting suits slender fingers and elongates the hand’s silhouette. Its modest height makes it glove-friendly and perfect for daily wear without catching.

Should you need resizing or have questions about pairing stones, our Brooklyn studio offers personalized guidance to ensure your ring fits seamlessly into your life.

Explore this semi-set marquise solitaire in person or begin your custom design journey online—crafted with care, rooted in Brooklyn.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio specializing in lab-grown diamond engagement rings, blending ethical craftsmanship with expert design for a modern love story.

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.