Compared to common opal, which is usually one color, black opal exhibits many different colors contrasted by a dark body tone. Frederick: It's simply the most stunning gemstone on the planet.

Interestingly, depending on where the opals come from, they can have distinctly different colors. October's alternative birthstone is tourmaline. "It's fascinating that both gemstones for October ...

Most of the major colors used in this design were taken from the main opal picture from the product display. Using color picker tools, I picked out most of the colors that were clearly visible on the ...