Lab-Grown Diamond Engagement Ring

Light catches the marquise center stone’s tapered points, casting a subtle, elongated sparkle that draws the eye along the finger’s natural line. This semi-set halo engagement ring in platinum offers a refined foundation, ready to cradle a 6 x 3.5 mm marquise diamond with precision.

Crafted in platinum for durability and a cool, luminous sheen, the mounting features a low-profile halo setting designed to sit close to the hand, minimizing snagging and enhancing everyday comfort. Each prong and pavé detail is meticulously finished in our Williamsburg studio, ensuring a secure hold and smooth edges that invite daily wear.

Choosing a lab-grown diamond here aligns with a commitment to ethical jewelry—minimizing environmental impact without compromising brilliance or clarity.

The slim band and modest height make this ring ideal for those seeking a piece that layers effortlessly with wedding bands or stacks, while the marquise shape visually elongates the finger for a graceful silhouette. Its balanced proportions suit a range of hand sizes, especially those who appreciate subtle drama without bulk.

Should you need resizing, our in-house artisans accommodate adjustments with care, preserving the integrity of the halo and setting.

Explore this semi-set halo in person at our Williamsburg studio or begin your custom design journey online—where expert guidance meets thoughtful craftsmanship.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio specializing in lab-grown diamond engagement rings, blending ethical craftsmanship with local expertise to create pieces made for daily life and lasting beauty.

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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