求估值！

到泰国旅游，朋友去皇家珠宝买了些宝石，感觉太贵了，便宜的又小又没有品质，逛曼谷市中心的时候看到这款，想下手，求群里的朋友给个参考价Report Verified

Number: GRS2013-052167
Date: 27th May 2013
Object: One faceted gemstone
Identification: Natural Orange Sapphire
Weight: 4.11 ct
Dimension: 10.20 x 8.23 x 5.37 (mm)
Cut: brilliant/step
Shape: oval
Color: vivid orange
Comment: H
Comment 2: LIBS-tested
Comment 3: (see reverse side for details)
Origin: Sri Lanka