I have been shipping with USPS, Fedex, UPS and DHL for over 30
There IS a proper way to prepare packages for safe shipment, and all
these shippers are glad to help. While I have experienced an
occasional delay or mis-routing with all the carriers, I have
experienced a total loss only with UPS and Fedex, each once. Proper
documentation allowed me to get paid, eventually.
I have NEVER experienced a loss with USPS. I now routinely send
almost all goods via Express Mail, flat rate. High value packages
get the Registered, Insured treatment. Slow, but it WILL get there.
It must be signed for by every person who takes possession of it
along the way, and in case of it going missing, the person who last
signed for it is held personally and financially accountable by
USPS. And they will lose their job.
If you carry insurance through Jeweler's Mutual, you need not buy
insurance for Express Mail packages, they will cover it...both ways,
in fact, good deal.
UPS and Fedex do have the right to open any package at any
time....read their rules. And you can't insure jewelery with Fedex,
period. Nor loose gems with either Fedex or UPS. Period.
If you ship a lot, you might want to use a private insurer like
Parcel Pro, who will insure Fedex, UPS, whatever privately, if you
follow their rules and procedures, which include a detailed
notification to them of each pkg you ship before you ship it,
including the tracking number. There are lots of ways to move goods
around with great safety. But the best advice I can give is to READ
THE SHIPPER'S RULES BEFORE YOU SHIP!