Better investment? PAM or diamond tennis bracelet?

[jms_w]

I offered to buy a tennis bracelet for the Mrs.'s but she says she doesn't necessarily want it right now. So, I thought I'd use the money to buy another PAM for myself for the time being. I would never sell either of the two if bought but I'd still like to know what you all think about which will be worth more down the road in case I had to sell. So let's say I was able to get an $8K the PAM for 10% off or $7200 and the tennis bracelet costs the same which would likely have a 5.0 t.c.w. of round brilliant VS1 or 2 and H or I color. Will the PAM retain it's value better than the diamonds?