My boyfriend ordered the 1.5 carat cushion cut loose "diamond" CZ from Ziamond (paid $240 for it after a 20% promo code was applied) after I researched the company (among many others) and read how "amazing" their hand cut Russian CZ's are but when he took it to the jewelers today to get mounted in my engagement setting, our jeweler told us he can get us a MUCH better quality CZ stone with the same cut & carat size for $20!!!!! I went to Ziamond.com hoping I could return the loose stone and they don't accept returns on loose stones (which is MY fault for not reading their return policy before purchasing), but what is their reasoning for not accepting returns on items that were not special ordered or ever used?!?! To me, that says they KNOW that their products are definitely NOT superior to other stones on the market! We paid $240 for a crappy quality $300 loose CZ stone that we can't return and are now stuck with when we bought a MUCH higher quality CZ stone from our jeweler for $20 (we JUST found this jeweler or we would've gone to him from the start)!!!! I am beyond disappointed in Ziamond.com and want to warn everyone before purchasing a CZ loose stone from them to look at other sites because the other main online retailer of CZ stones DOES OFFER RETURNS on unused stones. Now we are out $240 on a stone that isn't nearly worth it's price, nor is it as high of quality as the $20 stone we purchased from our jeweler!!!!