Here is another example of Ruby that is only red on the very top and the very bottom. This one was purchased in 2006 but does not have the date etched on the bottom. Initially, this was put in the Tangerine family because the coloration on the top looks so much like Tangerine. I have not seen Tangerine with the buff brown color before so I decided that it was Ruby. If you have input on this, I would be glad to hear from you.