These earrings represent the shape of an ammonite fossil which are forms related to the modern pearly nautilus (Nautilus) and are frequently found as fossils in marine rocks. Their formation dates back millions of years. They measure approximately 1 inch by 7/8 inch with a 1 1/2 inch drop. The light color is a creamy white with barely a hint of yellow again the coral color. The color was hard to accurately photograph but I finally got it right!