Lab-Grown Diamond Engagement Ring

Sunlight catches the soft, rounded corners of a 10 x 10 mm cushion diamond, its gentle glow framed by two smaller stones that echo its vintage-inspired charm. This three-stone semi-set ring features an 18K yellow gold band, hand-shaped and polished in our Williamsburg studio to a warm, buttery finish that feels substantial yet comfortable on the finger.

The setting balances presence with wearability, designed low enough to slip easily beneath gloves or stack alongside other bands without catching. Each prong is meticulously crafted to cradle the center stone securely while allowing light to flood its softly faceted pavilion, enhancing the diamond’s subtle glow and depth.

Our commitment to sustainability is reflected in the lab-grown cushion diamond, offering clarity and brilliance with a significantly reduced environmental footprint. This ring suits those who appreciate artisanal detail and a classic silhouette reinterpreted for daily life.

Resizing is straightforward, handled in-house to maintain the integrity of the handcrafted shank and setting. Whether you choose to complete the ring with your own center stone or explore our curated selection, the semi-set offers flexibility without compromising on craftsmanship.

Visit our Williamsburg studio to experience the tactile warmth of 18K yellow gold and discuss custom options, or begin your design journey online with guidance from our expert jewelers. Haejin Jewelry blends expert craftsmanship with ethical clarity, creating lab-grown diamond engagement rings that reflect Brooklyn’s creative spirit and commitment to responsible luxury.

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.