Sterling and fine silver, 24K gold, petrified/fossilized wood, topaz: This is an amazing piece of petrified wood, known in the gem world as "Opalwood", is petrified wood that has been replaced by silica over millions of years, giving each piece a unique design. Very rare to find beautiful pieces of this material any longer. Also in the pendant is a facetted London Blue Topaz highlighted by 24K gold accents applied with a Japanese technique called Keumboo. 3-1/4" long by 2-1/4 wide and come with either a 16 or 18" sterling cable neckwire. PLEASE CHOOSE YOUR LENGTH FROM THE DROPDOWN BOX.