Lab-Grown Diamond Engagement Ring

Light catches the elongated points of a marquise diamond, casting a slender, dramatic silhouette that seems to stretch the hand with quiet elegance. This semi-set platinum mounting awaits your choice of a 7 x 3.5 mm marquise center, designed to cradle the stone securely while maintaining a low profile for everyday grace.

Crafted in platinum, the band offers a cool, substantial feel with a smooth comfort fit that slides on effortlessly. The solitaire setting’s minimal prongs hold the diamond close to the finger, reducing snag risk and allowing the stone’s unique shape to command attention without distraction.

Each piece reflects our commitment to ethical jewelry, featuring lab-grown diamonds that deliver clarity and brilliance with a smaller environmental footprint. The slender band suits those who favor refined understatement and pairs well with stacking rings or a wedding band.

Its low profile and secure setting make this ring a practical choice for daily wear, including glove-friendly comfort during colder months. Resizing is available to ensure a precise fit, crafted in-studio with care and attention.

Explore this semi-set marquise solitaire in our Williamsburg studio or begin your custom design journey online—where expert guidance meets Brooklyn craftsmanship.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio specializing in lab-grown diamond engagement rings, blending ethical craftsmanship with local expertise to create pieces made for a lifetime.

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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