Lab-Grown Diamond Engagement Ring

When light catches the elongated silhouette of a marquise diamond, it creates a striking interplay of brilliance and shadow, lending a subtle drama to the hand. This semi-set engagement ring foundation in platinum offers a sleek, low-profile frame designed to showcase a 6 x 3 mm marquise center stone, accented delicately to enhance its tapered elegance.

Crafted in Williamsburg, the platinum band is polished to a satin finish that balances durability with refined comfort, ensuring it sits close to the finger without catching on daily fabrics. The setting’s precision engineering prioritizes secure prong placement and a streamlined profile, ideal for everyday wear and effortless stacking.

Our commitment to lab-grown diamonds means this ring supports ethical sourcing and environmental mindfulness without compromising on clarity or fire. The cool platinum complements the stone’s sharp geometry, creating a modern yet understated statement.

Designed for those who appreciate architectural lines and a confident fit, this mounting suits slender to medium finger sizes and pairs well with both minimalist and accent bands. Its subtle height allows for glove-friendly wear and ease of movement.

Should you wish to adjust the fit, resizing is available through our Brooklyn studio with care to maintain the ring’s structural integrity. Typical lead times for custom setting completion are communicated upfront to ensure a smooth experience.

Explore this semi-set marquise engagement ring in person at our Williamsburg studio or begin your custom design journey online, where expert guidance awaits.

Haejin Jewelry stands as a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, blending expert craftsmanship with ethical practices and a deep connection to New York City's creative spirit.

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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