Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated points of a marquise diamond, casting a slender, dramatic silhouette across the hand. This 9 x 4.5 mm marquise lab-grown diamond, set in cool platinum, balances architectural precision with a whisper of vintage allure.

Expertly mounted in a low-profile setting, the stone is framed by delicate accent diamonds that enhance its clarity without overwhelming the clean lines. The platinum band is polished to a satin finish, offering a subtle contrast to the diamond’s brilliance while ensuring durability for everyday wear.

Crafted in Williamsburg, this ring reflects a commitment to sustainable luxury—each lab-grown diamond embodies ethical sourcing and reduced environmental impact.

Its slender shape and modest height make it ideal for those who appreciate a refined statement that layers effortlessly with other bands or stands alone with quiet confidence. The comfort-fit shank ensures it sits naturally, whether worn daily or reserved for special moments.

Should you need a custom adjustment, resizing is handled with care in-studio, preserving the integrity of the setting and finish.

Explore this design in our Williamsburg studio or begin your custom journey online, where expert guidance meets thoughtful craftsmanship.

Haejin Jewelry is a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, where ethical craftsmanship and local expertise shape every piece with intention and care.

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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