Sardonyx Agate

The image showcases a polished sardonyx gemstone, featuring intricate layers of reddish-brown, white, and darker hues that create captivating, swirling patterns. This semi-precious stone, with its glossy surface, is placed above a measuring ruler, indicating its size within a well-lit environment, emphasizing its smooth, rounded shape and the natural beauty of its banded designs. The unique patterns seen in the sardonyx are often valued in jewelry making and collection.