Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, casting a delicate sparkle that seems to stretch beyond the finger. This semi-set three-stone engagement ring foundation in 18K white gold invites you to select a center stone measuring 8 by 4 millimeters, perfectly poised to emphasize the marquise’s signature tapered drama.

Crafted in our Williamsburg studio, the band is shaped with a subtle comfort fit and finished to a smooth, mirror polish that complements the diamond’s sharp geometry. The three-stone setting balances presence with wearability, designed low enough to slip easily under gloves or stack alongside wedding bands without catching.

Each piece reflects our commitment to ethical jewelry, featuring lab-grown diamonds that offer clarity and brilliance with a smaller environmental footprint. The white gold’s cool tone enhances the stone’s glassy facets, creating a modern yet artisanal feel.

This ring suits those who appreciate architectural elegance and a refined profile, especially hands that favor elongated shapes or a slender silhouette. The semi-set allows for a personalized choice of center diamond, ensuring your ring is as unique as your story.

Resizing is straightforward and handled with care in-studio, ensuring your ring fits comfortably for daily wear. Typical lead times accommodate thoughtful customization without rush.

Visit our Williamsburg workshop to explore this design in person or begin your custom journey online, where expert guidance awaits to bring your vision to life.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio dedicated to crafting lab-grown diamond engagement rings with expert precision, ethical integrity, and a deep connection to New York City’s artisan 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.

Explore our Guides & Education and Stories & Lifestyle for diamond education, care tips, and real studio stories.

Finished for daily wear — a low-profile silhouette and polished edges help minimize snagging.