Diamond necklace needed

I have a customer who would like a continuous diamond necklace.
It needs to be 16" long, with graduated diamonds, preferably set in
14k yellow gold, but white gold would be ok. I would like to spend
no more than 12 - 15k, and would like the stones to have very
little carbon (no lower than I-2 clarity and H-J in color. It also
needs to lay properly and not flip. A blank mounting would be OK,
I can buy and set the stones. Please e-mail me privately off list
if you can help.

Thank You!
Wendy Newman
ggraphix@msn.com