Lab-Grown Diamond Engagement Ring

Sunlight catches the elongated silhouette of a marquise diamond, casting a slender, graceful shadow that seems to dance with every movement. This semi-set solitaire invites you to choose a center stone measuring 12 by 6 millimeters, its distinctive shape evoking a sense of refined drama and vintage allure.

Crafted in warm 18K yellow gold, the mounting balances classic richness with a delicate profile designed for everyday wear. The slender prongs curve gently to cradle the stone securely while maintaining a low-profile setting that slips comfortably beneath gloves or alongside stackable bands. Each ring is meticulously finished by hand in our Williamsburg studio, ensuring smooth edges and a comfort fit that feels as natural as it looks.

Our diamonds are lab-grown, offering clarity and brilliance with a significantly reduced environmental footprint, reflecting a quiet commitment to ethical jewelry without compromise.

This solitaire suits those who appreciate a statement piece that remains understated in daily life—ideal for hands that favor elongated shapes or for anyone seeking a ring that layers effortlessly. The semi-set design allows you to select a stone that matches your personal vision, whether you prefer a crisp, icy white or a warmer hue.

Should you need resizing or guidance on selecting the perfect diamond, our Brooklyn studio offers personalized consultations to ensure your ring fits seamlessly into your life.

Visit us 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 specializing in lab-grown diamond engagement rings, blending expert craftsmanship with ethical sourcing and a deep connection to 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.

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