Lab-Grown Diamond Engagement Ring

Light catches the elongated silhouette of a marquise diamond, its tapered points drawing the eye along a sleek, architectural line. This semi-set three-stone engagement ring foundation in platinum offers a modern-minimal framework, designed to showcase a 12 x 6 mm center stone with clarity and quiet confidence.

Crafted in Williamsburg, Brooklyn, the platinum band is polished to a satin finish that balances subtle sheen with everyday durability. The three-stone setting is structured to sit low on the finger, ensuring a comfortable fit that slips easily beneath gloves or sleeves. Each prong is meticulously shaped to cradle your chosen marquise diamond securely while allowing maximum light to animate its facets.

Our commitment to ethical jewelry is reflected in the exclusive use of lab-grown diamonds, combining sustainability with exceptional clarity and brilliance. This mounting invites customization, offering a refined base for your personal selection of a marquise cut that elongates the hand with its graceful, tapered drama.

Ideal for those who appreciate clean lines and architectural form, this ring suits a confident wearer seeking a piece that balances statement with subtlety. Its low-profile design makes it stackable with other bands or elegant worn alone.

Resizing is available to ensure the perfect fit, and our Brooklyn studio welcomes you to explore this semi-set foundation in person or begin your custom design journey online.

Haejin Jewelry is a Brooklyn fine-jewelry studio specializing in lab-grown diamond engagement rings, where expert craftsmanship meets ethical values in every piece created for daily life 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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