Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated points of a marquise diamond, casting a slender, dramatic silhouette that feels both bold and refined. This three-stone engagement ring in platinum frames a 12 x 6 mm marquise center with two tapered side stones, each precisely set to emphasize clarity and architectural balance.

Crafted in Williamsburg, the ring’s low-profile setting ensures a comfortable fit for daily wear, while the polished platinum band offers subtle weight and cool resilience. Every facet is hand-inspected to meet exacting standards, with clean lines and a modern-minimal aesthetic that speaks to quiet confidence.

Our lab-grown diamonds provide the same optical brilliance as mined stones, with a fraction of the environmental impact—an ethical choice without compromise.

Designed for those who appreciate structured elegance, this ring complements slender fingers and pairs effortlessly with stackable bands or a wedding band. Its streamlined silhouette slips easily under gloves or sleeves, making it a versatile companion through every season.

Should you need a custom size, resizing is available to ensure a perfect fit without altering the ring’s refined proportions.

Visit our Williamsburg studio to experience this three-stone marquise ring firsthand or begin your custom design journey online with Haejin Jewelry’s expert guidance.

Haejin Jewelry is a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, where ethical craftsmanship and local artistry converge to create pieces designed for a lifetime.

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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