hi, i am thinking about purchaseing a pink sapphire from them and was wondering if there any good.http://www.gemsny.com/index.php?file=gems_sap_details&gid=100301&is_bulid=&is_gems_bulid=0&Metal_Type=&gemsid=19&hidshp=&earring_pair=&iprod_id=&cattype=&catnm=