"A tad rough round the edges but you'll not be getting an argument!
The proverbial rough diamond!
On the subject of diamonds .. how can you have a gemstone which looks like a diamond .. feels like a diamond .. only an expert with his eyeglass can tell it isn't a diamond .. how can such a gem be worthless???
I would imagine that the venerable Captain is referring to Cubic Zirconia, which, in comparison with diamonds, are worthless.
Primarily, as they are man made, as opposed to naturally occuring diamond, an allotrope of carbon.
Genuine diamonds are 99.9%pure carbon.
A simple conductivity test or checking its light refractive index will soon show if you're being had over. On the other hand, you could just buy one from ratners, then you could be assured its a piece of shite
I was thinking of proposing to Moonshadow ... do you think she would know the relative light refractive index or get out her conductivity testing equipment and know I’m a cheapskate lol.