Once upon a time...
This word originated in Scotland.
Glamour originally described a magical-occult spell cast on somebody to make them believe that something or somebody was attractive.
Late in the 19th century the common meaning shifted to being applied to ordinary objects and jewellery without connotations of supernatural, merely upon the effect that it has on appearance.
Today, glamour usually denotes the impression of attraction or fascination that a particularly luxurious or elegant appearance creates, an impression which is better than the reality.
Glamorous things are neither opaque, hiding all, nor transparent showing everything, but translucent, favourably showing things.A glamour was originally said to be a spell cast by a witch to make somebody see things in a different way.
"Glamour cannot exist without personal social envy being a common and widespread emotion." - John Berger