When buying Aventurine gemstone online in the UK, USA, India or anywhere in the world, do ensure that you get a Lab Certificate of its originality and naturalness along with it. Many unscrupulous dealers sell treated gemstones; therefore, insist your dealer to get your Aventurine certified from a lab of your choice as there are many fraudulent labs that give out fake certificates as well. Also, it is recommended that the company have a larger presence because a brand is more likely to be particular about the quality of its products and services.