Our stone products are made from natural organic materials.  In some instances, such as with opalite, the stone is a manufactured product.  Stone has significant natural variations.  We try our best to represent the product in photos, but plugs contain such a small quantity of the stone, that there can be significant differences in colour and pattern between any two pairs if the stone is a type that is not a uniform colour.  All pairs are well matched.  If you want a product that looks almost identical to the photo, please inquire prior to placing order and we can tell you what we have in stock for your size.