铂金戒指现在最便宜的多少钱？PT950或PT990？

这是11月7号的国际金价--------------------------------------------------
-- Daily Gold Market Price Update --
-- Version 3.0, Release on 01-FEB-2006 --
-- --
-- Program started on 07-NOV-2007 11:40:59 --
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Today Market Price:
07-NOV-2007 10:35:30 9999-D-PRICE = $207.57
07-NOV-2007 10:35:31 PD9995-D-PRICE = $97.79
07-NOV-2007 10:35:30 PT900-D-PRICE = $345.45
07-NOV-2007 10:35:30 D20P-D-PRICE = $24.60
07-NOV-2007 10:35:30 PT9995-D-PRICE = $371.64
07-NOV-2007 10:35:30 AG9995-D-PRICE = $4.06
07-NOV-2007 10:35:31 IR9995-D-PRICE = $116.91
--------------------------------------------------
. 14R----144.65
. 14W----145.15
. 14WNF----155.95
. 14Y----144.65
. 18R----185.64
. 18W----186.04
. 18WNF----192.18
.