Lab-Grown Diamond Engagement Ring

Light catches the elongated silhouette of a marquise diamond, its tapered points tracing a delicate arc that seems to cradle the hand. This three-stone semi-set engagement ring in platinum offers a refined stage for a 7 x 3.5 mm marquise center, inviting your choice of lab-grown brilliance to complete the design.

Crafted in cool, polished platinum, the mounting balances strength with subtlety, its low-profile setting designed to sit comfortably beneath the hand. Each prong is meticulously shaped and finished in-studio, ensuring the stones are secure yet showcased with graceful openness. The three-stone arrangement adds a quiet narrative of past, present, and future, while the smooth band offers a comfort fit ideal for daily wear.

Our lab-grown diamonds reflect a commitment to ethical jewelry, offering clarity and sparkle without compromise. This ring’s slender silhouette and modest height make it glove-friendly and perfect for stacking alongside wedding bands or personal favorites.

Should you wish to adjust sizing, our Brooklyn studio provides expert resizing with care to maintain the ring’s integrity. Typical lead times accommodate thoughtful customization without rush.

Explore this semi-set marquise engagement ring in Williamsburg or begin your custom design journey online—where craftsmanship meets intention in every detail.

Haejin Jewelry stands as a Brooklyn fine-jewelry studio dedicated to crafting lab-grown diamond engagement rings with ethical precision and local artistry, blending modern design with enduring values in New York City.

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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