Lab-Grown Diamond Engagement Ring

Imagine the soft glow of a 9 x 9 mm cushion-shaped diamond poised to catch the light with a gentle, vintage-inspired shimmer. This semi-set solitaire ring foundation in 18K rose gold offers a warm, subtle contrast to the diamond’s glassy facets, designed to sit low and close to the finger for everyday ease.

Crafted with precision in Williamsburg, the band’s smooth contour ensures a comfortable fit, while the setting’s minimal profile keeps the stone secure without excess height. Each piece undergoes meticulous finishing and inspection, reflecting a commitment to both durability and refined detail.

Choosing a lab-grown diamond aligns with a mindful approach to ethical jewelry, reducing environmental impact without compromising on clarity or brilliance.

This mounting suits those who prefer a ring that balances presence with practicality—ideal for stacking or wearing solo, especially on hands that appreciate a sleek silhouette. The cushion shape’s soft corners and broad facets lend a quiet elegance that complements a variety of personal styles.

Should you need resizing or custom adjustments, our Brooklyn studio offers attentive care with typical lead times tailored to your design.

Explore this semi-set foundation in person at our Williamsburg studio or begin your custom design journey online, where expert guidance awaits.

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

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.