Lab-Grown Diamond Engagement Ring

Light catches the elongated points of a marquise diamond, casting a subtle, tapered glow that draws the eye along the finger. This semi-set halo engagement ring foundation in platinum offers a refined stage for a 9 x 4.5 mm marquise center stone, designed to sit close to the hand with a low-profile setting that balances elegance and everyday ease.

Crafted in platinum for durability and a cool, luminous finish, the mounting features a halo setting that enhances the marquise’s distinctive shape while maintaining a sleek silhouette. The band’s comfort fit ensures it wears smoothly beneath gloves or stacked with other bands, making it a versatile choice for daily life.

Each piece is meticulously finished and inspected in our Williamsburg studio, where precision meets thoughtful design. The lab-grown diamond option aligns with a commitment to ethical jewelry, reducing environmental impact without compromising brilliance or clarity.

Ideal for those who appreciate architectural lines and a ring that complements an active lifestyle, this semi-set allows you to select a center stone that reflects your personal vision. Resizing is straightforward, and the low profile minimizes snagging, making it a practical yet striking choice.

Explore this halo marquise semi-set in person at our Brooklyn studio or begin your custom design journey online—crafted for life’s moments, made in Williamsburg.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio specializing in lab-grown diamond engagement rings, blending expert craftsmanship with ethical sourcing and a local, hands-on approach to custom design.

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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