My Gems SearchSHIPPING& PAYMENT Return Policy• Any item may be returned for refund within 7 days of receipt. Item(s) must be returned in original condition.• Return is subject to a 10% withdrawal of value of order as a restock fee. Shipping costs are non-refundable. VVS 1 & 2VS 1Extra Fine Quality. These gems have microscopic inclusions which are difficult to slightly difficult to see under a loupe with 10x magnification.Very Fine Quality. Small pin-pricks are just visible to the scrutiny of the close naked eye. However, the beauty of the gem is not diminished in anyway.VS 2SI 1Fine Quality. Small pin-pricks and feathers are just visible to the scrutiny of the close naked eye. However, the overall beauty of the gem is still not diminished.Good Quality. These gems have inclusions which are fairly easy to see to the close naked eye. However, the overall beauty of the gem is still high.SI 2Included 1, 2 & 3Good to Medium-High Quality. These gems have inclusions which are fairly easy to see under the close naked eye. These inclusions are usually not really visible at an arm's length.Medium to the lower qualities. Included gems with internal features that range from eye visible to very easily seen to the naked eye. Our Video is using Digital 20X zoom Camera. Some inclusion maybe unseen with the naked eyesAdd to Favorite Stores | Sign up for Store newsletterItem Number:STS102-020-007Quantity:1 Pc(s)Weight:15.9 Carat.Gem Type:Natural Star SapphireShape:Oval Cabochon .Size in millimeter:15.8 x 12.8 x 7.0 mm.Color:Black Clarity:OpaqueLuster:3 Stars in 1 StoneOrigin:Chanthaburi, ThailandTreatment:Gentle HeatHardness:9 on Moh's scaleCertificate:Not IncludedHonesty Is our Policy We Deliver only Quality Buy Certificate for Your Gemstone. Click link belowEMIL Gem Laboratory (Japan) Brief Report with Photo$25.00EMIL Gem Laboratory (Japan) Full Report with Photo $50.00AIGS Gemstone Identification Card Report with Photo $35.00AIGS Gemstone Identification Full Report with Photo $100.00BGL Burapha Gemological Report Photo $20.00BGL Burapha Gemological Full Report Photo $50.00GIT Gem and Jewelry Institute of Thailand Full Report $80.00GIA Gemological Institute of America Full Report $170.00Natural Gemstone GuaranteeOutstanding Sale Award 2009 Top Seller Sales Award 2008Community Award 2008 Top Feedback Award Top Seller Sales Award Community Awards More information LinkColor grading for webClarity ScaleShapeTreatment and EnhancementHardnessRefractive indexBirthstoneColor grading for web |Clarity Scale | Shape | Treatment and Enhancement | Hardness | Refractive index | Birthstone