Do the stars really own their jewelry or do they just borrow pieces for events?

For the over 27 years that I have been in the jewelry business, there are two types of stars......
There are elegant and refined ladies like Anne Bancroft, Ann Miller and Debbie Reynolds,

Anne Bancroft

Debbie Reynolds

Ann Miller

who I had the wonderful pleasure to work with each......
and then there are other's, who I won't drag through the muck,
but never owned anything..... I remember a time when a popular singer/actress,
crawled out of her limo, I do mean crawled, actually found a piece that she loved,
and called her then husband.  She proceded to beg to buy a $3500 ring, pleading
"Oh please "Tony" (not his real name) can't I get this ring, please Tony"  and even though
she was the breadwinner of the family, he said no and she stumbled back to the car
empty-handed.  Poor thing, she had nothing, nothing but that dude.......