by starrylight » May 27, 2017 I just wanted to post a relatively new Lab-Grown Diamond Manufacturer company which I just found: Diamond foundry (the one that had a bit of buzz a while ago from Leonardo DiCaprio). I was directed to their site from Schubachs Jewelry, which stocks their diamonds. I was impressed by their Upgrade policy which guarantees the value of your diamond 100% for a lifetime of upgrades. As long as the new cost is twice that of the origional, all diamonds from Diamond Foundry are eligible, including diamonds purchased on our website as well as through our authorized retailers. (Yes some of that is copy pasted from their own website) That's a similar policy to that of Whiteflash for their in-house diamonds. I also appreciated that they have their own exclusive cuts- from rose brilliants to emerald princesses. I wish they posted videos depicting their proprietary cuts and may contact Schubachs for videos.