A look at what is currently available on eBay
 CARTIER Rare Estate 18K White & Yellow Gold Zigzag Ring Size 5 US $425.00 
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 Cartier Tri Gold Rolling Ring US $550.00
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 CARTIER 18K WHITE GOLD AND DIAMOND LOVE RING AUTHENTIC WITH CERTIFICATE US $2,300.00
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how much is an original cartier ring cost - LOVE RING just the 18k gold no diamonds? not from ebay?
chk the following links for prices and models:
http://www.portero.com/cgi-bin/ncommerce3/ProductDisplay?prrfnbr=87367039&prmenbr=66292034&aunbr=87713749
http://www.portero.com/cgi-bin/ncommerce3/ProductDisplay?prrfnbr=87372851&prmenbr=66292034&aunbr=87719561
http://www.portero.com/cgi-bin/ncommerce3/Search?cgrfnbr=66428515&cgmenbr=66292034&sort_order=edatea&sord=0&sort=no_cache&GO_SEARCH=YES&textsearch=cartier&au_nbr=&shlogid=&minprice=&maxprice=&au_type=&status=O&category_select=&gallery=&resstat=&wl=66292034&cid=3&filter=&InitialPaginateTag=&TotalRowsEver=62&TotalPagesEver=11&pc=4&cval=2007-10-05-09.24.00.00000087659408&nxtrfnbr=87659408&RPP=6
http://sfbay.craigslist.org/sfc/jwl/434931226.html
hope this helps you 
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