Lab-Grown Diamond Engagement Ring

Light catches the elongated points of the marquise diamond, casting a subtle, tapered glow that draws the eye along the finger’s natural line. This three-stone engagement ring, crafted in cool platinum, balances architectural elegance with everyday ease.

The center marquise measures 7 by 3.5 millimeters, nestled securely in a low-profile setting that minimizes snagging while maximizing the diamond’s signature brilliance. Each side stone complements the center’s shape, creating a harmonious trio that sits comfortably with a smooth comfort-fit band, designed for daily wear without compromise.

Our lab-grown diamonds offer the same optical precision and clarity as mined stones, with a fraction of the environmental impact—reflecting a quiet commitment to ethical jewelry.

Ideal for those who appreciate refined geometry and a ring that moves seamlessly from morning light to evening shadows, this piece suits slender to medium fingers and layers well with other bands without overwhelming the hand.

Should you need a size adjustment, we provide careful resizing to maintain the ring’s structural integrity and comfort.

Visit our Williamsburg studio to experience this marquise three-stone ring firsthand or begin your custom design journey online, where expert guidance awaits.

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 deep connection to New York City’s creative spirit.

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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