Lab-Grown Diamond Engagement Ring

Under the soft glow of a Brooklyn evening, a round diamond begins its quiet dance, catching light with a gentle fire that feels both intimate and enduring. This semi-set platinum band cradles a 4.1 to 4.4 mm round center stone, designed to showcase the diamond’s classic brilliance without distraction.

Crafted in Williamsburg, the ring’s six-prong setting offers a delicate balance of security and elegance, while the comfort-fit shank ensures it settles naturally against the skin for daily wear. The platinum’s cool, subtle sheen complements the diamond’s sparkle, finished with meticulous hand polishing and rigorous inspection to meet exacting standards.

Each diamond is lab-grown, reflecting a commitment to ethical sourcing and environmental mindfulness without compromising on clarity or light performance.

Its low-profile silhouette suits those who favor understated grace, slipping easily beneath gloves or alongside stackable bands. The semi-set design invites you to select a center stone that resonates personally, making this ring a truly bespoke expression.

Should you need resizing or guidance on stone selection, our Brooklyn studio offers personalized consultations to ensure a seamless experience.

We welcome you to visit our Williamsburg workshop or explore custom design options online, where thoughtful craftsmanship meets your unique vision.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio dedicated to lab-grown diamond engagement rings, blending expert craftsmanship with ethical clarity and local artistry in every piece.

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.