Lab-Grown Diamond Engagement Ring

Imagine the soft morning light catching the gentle curve of a round diamond, its facets whispering quiet brilliance. This semi-set platinum band awaits a center stone between 7.3 and 7.7 millimeters, designed to cradle your choice with six slender prongs that balance security and elegance.

Crafted in Williamsburg, this comfort-fit ring offers a smooth interior that settles naturally against the skin, ideal for daily wear. The low-profile setting keeps the diamond close to the hand, making it glove-friendly and perfect for stacking alongside other meaningful bands.

Each piece reflects a commitment to ethical jewelry, featuring lab-grown diamonds that mirror the clarity and fire of mined stones while reducing environmental impact.

The round shape you select will bring classic brilliance and a lively sparkle, enhancing the romantic gesture with every movement. Whether your hand is slender or broad, the balanced proportions of this mounting adapt gracefully, ensuring a harmonious fit.

Should you need resizing, our Brooklyn studio offers personalized adjustments to ensure your ring feels as natural as the moment it represents.

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

Haejin Jewelry stands as a Brooklyn fine-jewelry studio dedicated to expert craftsmanship and ethical design, specializing in lab-grown diamond engagement rings that reflect the spirit of New York City’s creative heart.

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.