Solid Lightning Ridge Natural Black Opal Silver Pendant Necklace

Australian Solid Natural Black Opal Sterling Silver Pendant 18" chain Opal Type : Solid Australian Black OpalCarat Weight : 0.45 ctSize : 5.53 mm x 6.47 mm approx.Color : Orange Green BlueShape : OvalClarity : TranslucentBrightness B1 - B5 : B3.9B1:Faint    B2:Dull    B3:Bright     B4:Very Bright     B5:BrilliantBody Tone N1-N9 : N4 Black OpalN1-N4:Black Opal     N5-N6:Dark Opal     N7-N9:Light Opal Treatment : NONEOrigin : Lightning Ridge Opal Field, NSW Australia---------------------------------------------------- Total Item Weight : 2.89 gMetal Type : Silver Metal Purity : 92.5 SterlingChain : 18 Inches 92.5 Sterling