This is B color for blue zircon and this gem is very wide for a best proportions blue Zircon. This collection gemstone will make a fantastic pendant for exquisite jewelry. No it is not 10 carats but right below 10, over 9 carats but really wider as a standard 10 carats gem. This natural Blue Zircon is faceted in pear/drop shape wider than high and is a great purchase of professional quality Zircon from Cambodia, perfectly cut, very shiny and perfectly clean and flawless (FL) XL gemstone.