Very nice Tiffany's diamond ring. I need the money, willing to negotiate the price. Just propose a reasonable offer.

It is still in perfect condition as the first time I bought it 1 year ago for around $10,500.00

Some data taken from the certificate:
Shape and Cut: Round Brilliant
Weight: 1.04 carats

Polish and Symmetry: both VERY GOOD.
Clarity: VS2
Color: H
UV Fluoresence: Medium Blue

The ring
 

Forgot to attached the pic