Lab-Grown Diamond Engagement Ring

Imagine the subtle elongation of your hand as a marquise diamond, measuring 10 by 5 millimeters, catches the light with its tapered brilliance. This semi-set platinum solitaire mounting offers a sleek, low-profile silhouette designed to sit comfortably for everyday wear without catching or shifting.

Crafted in platinum for durability and a cool, luminous finish, the setting is engineered with precise prongs that cradle the stone securely while maintaining an elegant minimalism. The band’s smooth comfort fit ensures it feels as natural as it looks, making it an ideal foundation for a striking marquise center stone.

Each piece reflects our commitment to ethical jewelry, featuring lab-grown diamonds that deliver exceptional clarity and sparkle with a smaller environmental footprint. The solitaire style highlights the diamond’s dramatic shape, perfect for those who appreciate architectural lines and a refined statement.

Designed for daily life in Williamsburg, this mounting suits hands that favor a slender, elongated profile and pairs seamlessly with stacking bands or a wedding ring. Its low profile also makes it glove-friendly and unobtrusive during active moments.

Should you need resizing or prefer a custom consultation, our Brooklyn studio offers personalized adjustments with attentive care and a relaxed pace.

Explore this semi-set marquise solitaire in person or begin your custom design journey online—crafted with quiet confidence in the heart of Brooklyn.

Haejin Jewelry stands as a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, blending expert craftsmanship with ethical sourcing and a modern design ethos rooted in New York City.

See how your design comes to life with our Ring Design Online, or start a truly custom piece from scratch in our Williamsburg studio.

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