Jack Weinstein is a crook. I bought my wife a 1.25 karat ring from him when he had a little 10x10 store on Fremont St. We paid him $1500 cash for it. He told us leave the ring with him for sizing. When we came back a few hours later he SWITCHED the big stone with one full of carbon deposits (dark spots) I told him it's not the same stone and Like an idiot I let it go. I swear on my life this is 1000% true story. He's a thief from the word go. This was 1975 and I will never forget this. Just ask Jack if he would do such a thing then watch the response you get.. I could care less about how many people work for him or the 5 star reviews by others. If he did this to me and my wife just imagine how many people this crook has ripped off throughout the years. Stay clear go to large reputable company.