All WB GEM are natural gemstones only and about treatment or natural that we key value of gems, these we guaranteed forever. 

For color and clarity you can check immediately, with 7 day hold to check quality and price. 

For certificated jewelry or gemstone, can recheck online or double check your local. 

For no certificated gemstone,  u can ask certificate before shipping,

Before order, Pls be careful look Key infos about treatment and color, that we clearly to write on photo, its key value for gemstone can't misunderstand or mistake.