Lab-Grown Diamond Engagement Ring

When light catches the elongated silhouette of a marquise diamond, it creates a striking interplay of brilliance and shadow, drawing the eye along its tapered points. This semi-set halo engagement ring foundation in platinum offers a refined stage for a 10 x 5 mm marquise center, designed to sit low against the finger for everyday ease.

Crafted in platinum, the mounting balances durability with a cool, subtle sheen. The halo setting enhances the marquise’s dramatic shape while maintaining a low profile that slips comfortably beneath gloves and sleeves. Each curve and prong is meticulously finished by hand in our Williamsburg studio, ensuring a secure hold and smooth edges that won’t catch or irritate.

Our commitment to lab-grown diamonds means this ring supports ethical sourcing and environmental mindfulness without compromising on clarity or fire. The semi-set design invites you to select a center stone that reflects your personal vision, with expert guidance available to match cut and proportions perfectly.

Ideal for those who appreciate architectural elegance paired with practical wearability, this mounting suits slender to medium finger sizes and pairs well with stackable bands or a simple wedding ring. Its comfort fit and modest height make it a versatile choice for daily life.

Resizing is straightforward, handled in-house to preserve the integrity of the platinum band and setting. Typical lead times reflect our careful handcrafting process.

Explore this semi-set halo marquise ring in person at our Williamsburg studio or begin your custom design journey online—where expert advice and thoughtful craftsmanship await.

Haejin Jewelry stands as a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, blending ethical craftsmanship with local expertise to create pieces made for life’s most meaningful moments.

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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