Insurance:
If you are shipping high value products, make sure you insure it with the courier comapny itself. Insurance with the courier comapny is easier than doing it with an insurance firm.
You can add the insurance price to the shipping charge or in the item price itself. Mention in your listing that the product is insured, so that the customer can understand the rason for slightly higher charge.
I insure each and every parcel of mine, for i never know which one can possibly get lost, even if buyer does not want an insurance. Insurnace normally costs 0.5% to 2.5% depending on the courier company and your negotiating power.
The process of claiming insurance is not very good. it takes almost 3-4 months and a lot of persistent follow ups. If you have more than 2 claims with an courier company, change the couerier itself!
Regards,
Shuaib