Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated points of a marquise diamond, casting a slender, dramatic silhouette across the hand. This three-stone semi-set engagement ring frames a 9 x 4.5 mm marquise center, ready to be paired with your chosen lab-grown diamond.

Crafted in 10K yellow gold, the band is designed with a low-profile setting that sits close to the finger, offering both comfort and security for everyday wear. Each prong is meticulously finished to cradle the stone without excess bulk, ensuring a sleek, refined line that complements the marquise’s tapered shape.

Our commitment to sustainability is reflected in the use of ethically sourced lab-grown diamonds, reducing environmental impact while maintaining exceptional clarity and brilliance.

The slender band and modest height make this ring ideal for those who prefer a subtle yet striking statement, especially suited to hands that appreciate elongated forms and a comfortable fit beneath gloves or daily activities.

Should you need resizing, our Brooklyn studio offers precise adjustments to ensure your ring fits perfectly without compromising its structural integrity.

Explore this semi-set design in our Williamsburg studio or begin your custom journey online—crafted with care, made for your life.

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

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.