This 2-piece collection features 2.88 carats of beautiful 6.5mm natural blue-green Tanzanite gemstones from Africa. The cushion-cut stones are 100% natural with no heat treatment, ensuring their authenticity and high quality. These eye-clean gemstones are perfect for jewelry-making or adding a pop of color to any project. Originating from Thailand, these natural gemstones are a stunning addition to any collection.