So I am up to the Adamantite metal and I just made an 'Adamantite One Hand Sword' for some guy and he payed me $16 for it XD. I checked the purchase list and it claims to just be a 'One Hand Sword' rather than an 'Adamantite One Hand Sword' however I definitely made it completely out of Adamantite. This is the image ... I am running Alpha 0.073 and my specs are [Intel i7-3770 @ 3.4GHz, 16GB of ram, 64bit Windows OS, Nvidia GeForce GT-630]
This is related to an ongoing bug, where a blade already part of a weapon reattaches to another grip/guard. The resulting sword has no value associated with the blade, whereas the remaining grip which had its blade removed retains the value of the blade. (Non-sword weapons also have this bug)
If you're clever, this bug is quite exploitable. Performing the bug again (attaching the valueless blade to a new grip) will give the blade's value to the previously connected grip.