The Stone of Eternal Life

For the stone I would like a symbol on it to represent it's power give the holder eternal life. I have researched symbols and their meanings, I have found the perfect one to be on the stone, the Phoenix. This is a big bird, on fire that is "a universal symbol of the sun, rebirth, resurrection and immortality".

I think it would be better if I had a symbol of a Phoenix, rather than a picture like this one.

I've researched "Phoenix Symbol" on Google Image and I was amazed at all the beautiful symbols from the first page. Here are my top three designs that I would like to have on the stone:

I will have the colour of the stone black and the phoenix red because I want the symbol to stand out. Also red can be seen as the colour of power and fire and this would suit the phoenix perfectly.