Olay group of mining company

We have rough uncut diamond at hand now, we need seriouse buyer that can buy our diamond and we are also ready to sell cheaper rate, commodity: rough uncut diamond quantity : 2000 carat, quality : ssv1,vv1,vv2,sv1,sv2. origing : serialone and ghana price : $500 per carat, buyer send letter to internet to seller response with perform invoice and a draft copy of contract. buyer and seller signs sales and purchase agreement. buyer comes