There are 2 sizes of Chesterfield Candlesticks, the 7” size is pattern #6007 and the 9” size is pattern #6009.
The difference in the height of the 6 sided base is very obvious, so if you don’t get dimensions, you should be able to tell by the picture.
The available colors in the database are Amethyst/Purple, Marigold, Red (Ruby Ice), Smoke (Blue Ice), Teal (Green Ice) and White (Iris Ice). These are part of Imperial's #600 line. The Ice colors were made for their stretch iridescent treatment lines, the ‘shiny' iridescent treatments are more typically considered to be carnival glass.