Black oyster stud earringsDark in color, these oysters are picked directly from the shore darker in color than most white cream colored oysters usually a darker mix of grey, blue, & white. These will vary in size, 1. 5 4. I do my best to pair similar shells together. If you prefer smaller or larger ones, put a note in checkout for me and I will do my best to accommodate as we usually have a lot of sizes available. see pics for details and the variety of shapes, colors and size.