The bracelet in the East
Maybe wearing bracelets were not so trendy and common about 40.000 years ago, but there is enough evidence that 7000 years ago in Egypt, Mesopotamia (country between the Euphrates and the Tigris in Irak and surroundings) and in China people wore bracelets on a more daily basis. They were made of shells, feathers, and grasses. Likely they served religious or spiritual goals. Like in Egypt priests and highly placed people wore bracelets decorated with a scarab, that represented rebirth and regeneration in those days.
Later they made them of bronze and copper and around 4000 years ago artisans were able to make bracelets of gold and silver. And those bracelets had a decoration of stones and shells. The archaeologists think that these bracelets were only worn by the rich people as a symbol of status and wealth. About 3000 years ago the Egyptian artisans could make bracelets of gold or silver with inlaid designs of gemstones that were found in Africa. And from this time (the New Kingdom in Egypt) they know that rich people did not wear bracelets because of religious reasons but as a decoration.