Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, casting a slender, dramatic sparkle that draws the eye along the finger. This solitaire semi-set ring offers a refined foundation for a 12 x 6 mm marquise stone, its pointed ends emphasizing a graceful, tapered elegance.

Crafted from 18K yellow gold, the mounting balances strength with subtle warmth, designed with a low-profile setting that sits close to the hand for everyday comfort. The band’s smooth finish and precise prong placement ensure secure wear without excess bulk, making it glove-friendly and ideal for stacking with complementary bands.

Each piece reflects our commitment to ethical jewelry, featuring lab-grown diamonds that deliver clarity and brilliance with a smaller environmental footprint. The semi-set design invites you to select a center stone that resonates personally, allowing for a custom expression of style.

Its slender shape suits hands seeking elongation and refined drama, while the comfort fit band supports daily wear without irritation. Resizing is available to ensure a perfect fit, crafted carefully in our Williamsburg studio.

Explore this foundation in person or begin your custom design online—our Brooklyn studio offers a pressure-free experience tailored to your vision and lifestyle.

Haejin Jewelry stands as a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, where expert craftsmanship and ethical sourcing meet thoughtful design for modern life.

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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