Lab-Grown Diamond Engagement Ring

Light catches the elongated silhouette of a marquise diamond, its tapered points tracing a delicate arc that seems to cradle the hand. This three-stone semi-set engagement ring in platinum offers a refined foundation for a 9 x 4.5 mm center stone, designed to amplify the marquise’s signature drama without overwhelming daily wear.

Crafted with a low-profile setting, the band’s polished platinum surface balances strength with subtlety, ensuring comfort beneath gloves or alongside stackable bands. Each prong is meticulously shaped to secure the stone while allowing maximum light to enter, enhancing the marquise’s glassy, tapered brilliance. The semi-set design invites you to select a lab-grown diamond that reflects your personal story, with expert finishing and inspection performed in our Williamsburg studio.

Choosing a lab-grown diamond aligns with a commitment to ethical jewelry, reducing environmental impact without compromising clarity or fire. The slender, elongated shape suits hands seeking a graceful elongation effect, while the three-stone arrangement adds a quiet narrative of past, present, and future.

Resizing is available to ensure a precise fit, and the platinum band’s durability supports everyday life with ease. Whether worn solo or paired, this ring adapts to your rhythm.

Visit our Williamsburg studio to explore this semi-set marquise design in person or begin your custom design journey online—crafted for those who value thoughtful detail and Brooklyn’s artisanal spirit.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio dedicated to lab-grown diamond engagement rings, blending expert craftsmanship with ethical sourcing and a deep connection to New York City’s creative pulse.

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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