請教這款tiffany價格,謝謝

http://www.tiffany.com/Engagement/item.aspx?GroupSku=GRP10013&selectedSku=23658283#p+1-n+6-cg+-c+-s+-r+-t+-ri+-ni+1-x+-pu+linkATD-f+0/0/0/0/0/0
目標是50分以上,f  color以上,vvs2以上,大約預算要抓多少,感謝回答