Collection: Marquise Lab-Grown Diamond Rings

The marquise is the most dramatic diamond shape — its elongated, pointed silhouette creates the largest face-up appearance of any cut relative to carat weight. Originally commissioned by King Louis XV of France, this shape commands attention in every setting. Every marquise lab-grown diamond at NYX Jewel is IGI certified and evaluated for symmetry that keeps the bowtie effect minimal. Available in east-west, bezel, halo, and solitaire settings, all in 14K or 18K solid gold. Free shipping, 30-day returns, and lifetime manufacturing warranty.