hey so i was referred to this via youtube and started delving into it, seems really cool! you can buy and sell them and put them on your smartwatch, check them out.
all unique one of a kind different cuts, colors, and more
https://bitmonds.com/en/?gclid=EAIaIQobChMI-IH539PH5gIVYh6tBh1AzwZaEAAYASAAEgL8tPD_BwE