And finally, for any other photography enthusiasts, all were shot with a Canon Digital Rebel Xti with a canon 60mm macro lens, in manual mode at F4.5 and around 1/500, no flash, auto WB.
Jonathan, you did an amazing job with your budget, and your g/f is going to be thrilled!
I spend a lot of my time on a very male dominated forum educating them about diamonds, and buying the very best for your budget. You maximized your budget in the best way possible.
I recently did a RHR on nearly your budget - WF .52 I SI1 ACA for ~$1,000 and a halo setting from LOGR won at auction for $150, and I'll bet your g/f's friends will never have any idea that you didn't spend a fortune on hers! It can absolutely be done, and your results are gorgeous!
I know your lady is gonna love you (and scream yes!)... who doesn''t love a savy shopper who can buy pretty sparkly things! please come back w/ your proposal story and some hand shots!