Natural Black Onyx Rectangle Flat Top Straight Side Both Side Polished

These natural black onyx rectangle flat top gemstones offer a sleek and modern design element for contemporary jewelry. The straight sides and rectangular shape provide a clean, minimalist aesthetic, while the flat top and double-sided polish enhance the depth and richness of the black onyx. The polished finish on both sides allows for versatile setting options and ensures a smooth, refined look from any angle.

These gemstones are perfect for creating modern pendants, minimalist rings, or geometric earrings. The deep, consistent black color of the onyx adds a touch of sophisticated drama to any piece. The precise cut and high polish of these gemstones ensure easy setting and a professional finish. Whether you're designing a personal piece or a bespoke gift, these natural black onyx rectangle flat top gemstones will add a touch of modern elegance and understated sophistication to your creations.