Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated facets of an 8 x 6 mm emerald-cut diamond, casting a serene, glassy shimmer that feels like a quiet promise. This semi-set engagement ring offers a poised foundation, ready to cradle your chosen center stone within its platinum split shank, where delicate accent diamonds trace a subtle path of light.

Crafted in platinum for enduring strength and a cool, luminous finish, the split shank design balances architectural grace with everyday wearability. Its low-profile setting ensures the ring sits comfortably beneath gloves or alongside a wedding band, while the smooth interior offers a gentle comfort fit for daily life.

Each piece reflects a commitment to ethical jewelry, featuring a setting designed exclusively for a lab-grown diamond—an elegant choice that honors sustainability without compromise.

This ring suits those who appreciate refined structure paired with romantic detail, especially hands that favor elongated shapes and a modern silhouette. The split shank’s open design invites stacking or solo wear, adapting seamlessly to your personal style.

Should you need resizing, our Brooklyn studio handles adjustments with care, ensuring your ring fits perfectly without disrupting its delicate balance.

Explore this semi-set platinum ring in our Williamsburg studio or begin your custom design journey online—where craftsmanship meets thoughtful intention.

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