Lab-Grown Diamond Engagement Ring

Imagine the subtle elongation of your hand as an 8 x 4 mm marquise diamond takes center stage, its tapered points drawing the eye with quiet drama. This semi-set platinum solitaire ring offers a sleek, low-profile mounting designed for everyday wear, balancing refined presence with practical comfort.

Crafted in Williamsburg, Brooklyn, the platinum band is polished to a smooth finish that feels weighty yet unobtrusive, while the secure setting ensures the stone sits close to the finger—ideal for stacking or glove-friendly wear. Each piece undergoes meticulous inspection to meet exacting standards of fit and finish.

Our commitment to ethical jewelry is reflected in the lab-grown diamond’s clarity and sustainability, offering brilliance without compromise. The marquise shape’s distinctive silhouette complements slender fingers and lends an architectural edge to modern engagement styles.

Should you need resizing, our in-studio process accommodates adjustments with care, ensuring the ring remains as comfortable as it is striking. Lead times are transparent and tailored to your custom design journey.

We invite you to explore this semi-set marquise solitaire in our Williamsburg studio or begin your custom design online—where craftsmanship meets intention in every detail.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio dedicated to lab-grown diamond engagement rings, blending expert craftsmanship with ethical sourcing and local artistry 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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