Lab-Grown Diamond Engagement Ring

Imagine the subtle elongation of a hand, where a marquise diamond’s tapered points catch light with a quiet, refined drama. This semi-set platinum mounting awaits your choice of a 9 x 4.5 mm center stone, designed to hold the marquise securely while maintaining a low profile that slips comfortably beneath daily gloves or sleeves.

Crafted in Williamsburg, this solitaire setting balances technical precision with understated elegance. The platinum band is polished to a satin finish, offering durability and a gentle weight that feels reassuring on the finger. Its streamlined silhouette ensures wearability without bulk, ideal for those who value both form and function.

Each piece reflects our commitment to ethical jewelry, featuring a setting ready to showcase a lab-grown diamond—clear, sustainable, and responsibly sourced.

With its narrow shape and subtle height, this mounting suits slender fingers or those who prefer a refined, glove-friendly profile. The solitaire style invites layering with stackable bands or stands alone as a statement of modern minimalism.

Resizing is straightforward, handled carefully in-studio to preserve the integrity of the platinum and setting alignment.

Visit our Williamsburg studio to explore this semi-set marquise solitaire or begin your custom design journey online—crafted for daily life, made with Brooklyn’s quiet confidence.

Haejin Jewelry is a Brooklyn fine-jewelry studio specializing in lab-grown diamond engagement rings, where expert craftsmanship meets ethical design 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.

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