I have to start this review saying this: DONT TRUST THE "EXPERTS" most of them are nothing compared to an expert. I live in Amsterdam, a city well known for its diamonds trade. Recently I purchased two diamond rings via Catawiki, the "expert" said that the value for both was around 10,000 Euros or 11,700 US dollars. I ended up paying around 2,800 EUR including the shipping and taxes because it came from Israel, It all sounds until here quite ok, the problem is when I went to realize the taxation of the rings the jeweler almost laugh at me telling me that unfortunately, the rings are barely worth and with luck no more than 2,000 EUROS! I wanna make clear that I went to not only one but a few many places, all respectable institutions like Lippens, Gassan or even talked with an expert from The Royal Asscher, if you know Amsterdam for sure you all know this places, again, all of them trustable and 100% professional. To make it clear, DO NOT TRUST CATAWIKI, their experts are mostly nothing and indeed if you click in the small "i" next to the price it says the extimations are aproximate but I am so sorry, from less than 2,000 to 10,000 isn't an aproximation, it is just a cheat. BEWARE of CATAWIKI and their cheats.