Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, its tapered points drawing the eye along the finger with quiet drama. This semi-set engagement ring foundation in 18K yellow gold awaits your choice of an 8 x 4 mm marquise stone, designed for a low-profile silhouette that slips comfortably beneath daily gloves and sleeves.

Crafted with precision, the slender band balances strength and subtlety, finished to a smooth comfort fit that feels natural for everyday wear. The mounting’s secure prongs cradle the marquise shape, emphasizing its signature brilliance while maintaining a sleek profile that resists snagging.

Each piece reflects our commitment to ethical jewelry, featuring lab-grown diamonds that offer clarity and sparkle with a lighter environmental footprint.

Ideal for those who appreciate architectural elegance and a ring that integrates seamlessly with other stackable bands or stands alone with confident simplicity. The 18K yellow gold warmth complements a variety of skin tones, enhancing the marquise’s distinctive form.

Should you need resizing or prefer a custom consultation, our Brooklyn studio offers a pressure-free experience tailored to your lifestyle and preferences.

Explore this semi-set marquise solitaire in Williamsburg or begin your custom design journey online—where craftsmanship meets conscious choice.

Haejin Jewelry is a Brooklyn-based fine-jewelry studio specializing in lab-grown diamond engagement rings, blending expert craftsmanship with ethical sourcing and a modern design ethos rooted in New York City’s creative spirit.

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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