Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, casting a slender, luminous shadow that feels both bold and refined. This semi-set engagement ring invites you to select a center stone measuring 12 by 6 millimeters, its tapered shape naturally elongating the finger with architectural grace.

Crafted from warm 14K yellow gold, the mounting features delicate accent settings that enhance the diamond’s clarity and structure without overwhelming its modern-minimalist spirit. The band’s smooth profile ensures comfortable daily wear, while the low-set design keeps the ring glove-friendly and easy to stack with complementary bands.

Each piece is meticulously finished in our Williamsburg studio, where expert hands polish and inspect every curve to balance strength with elegance. The ethical choice of a lab-grown diamond center aligns with a commitment to sustainability and responsible sourcing.

Ideal for those who appreciate clean lines and confident design, this ring suits slender to medium finger shapes, offering a striking yet wearable statement. Should you need resizing or guidance on selecting the perfect marquise stone, our team is ready to assist with care and precision.

Explore this semi-set marquise engagement ring in person at our Brooklyn studio or begin your custom design journey online—crafted to reflect your unique story with clarity and intention.

Haejin Jewelry stands as a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, where ethical craftsmanship meets expert design in every piece we create.

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.

Finished for daily wear — a low-profile silhouette and polished edges help minimize snagging.