Judging by what she likes so far, you might check out -
Estee Lauder's new one, Pure White Linen Light Breeze.
http://www.esteelauder.com/templates/products/multiproduct.tmpl?CATEGORY_ID=CATEGORY21182&cm_sp= top%20navs-_-fragrance-_-fw_purewhitelinenlightbreeze
Panthere Eau Legere by Cartier, which was a limited edition, but can still be found online.
http://www.imaginationperfumery.com/...for-women-2037 (good description, plus grapefruit)
http://www.fragrancenet.com/f/net/wf...ter=P&gs_gen=W
Bvlgari Green Tea
http://www.fragrancenet.com/f/net/wf...=W&id=7U7vWedy
O Oui by Lancome
http://www.lancome-usa.com/fragrance/o-oui.aspx
O de Lancome
http://www.lancome-usa.com/fragrance/o-de-lancome.aspx
I wear L'Occitane a lot, I haven't tried that one, but I don't think it's her style. jmo Fragrancenet ships overseas and there are usually discount codes available. (not affiliated)