Yes I do; it pays off too...I lost a .86ctw dia stud earring in NYC 2 years ago. I filed the claim, submitted photos of the matching earring, receipt from store, and they cut me a check within 2 weeks of filing the claim. I now have a matching set of studs again - at no cost to me.
To get the policy we added a valuable personal property rider onto our auto and homeowners policy. The monthly cost is negligble when compared to the cost of jewelry replacement. To be sure I get full value for my pieces, I did get independent appraisals for everything valued over $2500 ($2500 is their coverage payout without appraisal/no documentation needed). Obviously, you would want to know what your insurer's max payout is without documentation, and then get them the appraisals for all jewelry valued over that amount.