Lab-Grown Diamond Engagement Ring

Imagine the subtle elongation of a hand caught in soft Brooklyn light, where a marquise diamond’s tapered silhouette draws the eye with quiet confidence. This semi-set platinum mounting awaits your choice of a 9 x 4.5 mm marquise center, designed to cradle the stone securely while maintaining a low profile that slips comfortably beneath daily gloves or sleeves.

Crafted in Williamsburg, the band’s streamlined shape balances strength with refined minimalism, finished to a smooth comfort fit that feels natural for everyday wear. The solitaire setting’s precision ensures the diamond’s pointed ends are protected without sacrificing brilliance or presence.

Each piece reflects a commitment to ethical jewelry: lab-grown diamonds offer clarity and sparkle with a significantly reduced environmental footprint. This ring suits those who appreciate architectural elegance paired with practical design—ideal for slender fingers or as a striking solitaire statement.

Should you need resizing, our Brooklyn studio handles adjustments with care to preserve the mounting’s integrity. Lead times are tailored to your design choices, ensuring a thoughtful, pressure-free experience.

Visit us in Williamsburg or begin your custom design journey online to bring your marquise solitaire vision to life with Haejin Jewelry’s expert craftsmanship and ethical approach.

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.