What was the deal with the butterfly diamond rings that were sold on television during the 1980s?”
There are many grades of diamonds, some are pretty much worthless, i.e. ‘industrial grade’ diamonds. They were probably coated in gold, like you said. So they were probably worth only a few bucks. Anyway, a lot of these TV things actually sign you up for a ‘buying club’, which means when you buy something worth more than you pay for it, you’re also agreeing to buy additional items every month, which makes it not a good deal afterall.
