This is a natural Ethiopian Welo Opal pendant necklace. The freeform shaped opal white white body color and orange flashes of orange/yellow color has been polished and bezel set in silver ready to wear. My take: At first glance this appears to be a white opal; the play of color comes out when sunlight hits the pendant. My unedited photos & video reveal this transformation! All photos taken with iPhone except cover photo professional shot. Sterling silver. Stamped 925. (not photographed, will update—please ask!) Item Information: Dimensions (mm) 13 x 11 x 6mm Weight (carats) 9.45 carats These dimensions refer to the opal per given description. See photos for pendant’s measurements. Pendant is approximately 1/2 inches tall and without bale with an irregular shape. Opal is an October Birthstone. October's birthstone, the opal, symbolizes faithfulness and confidence. Get a free chain with this pendant; choose any chain for $10 or less. For full price, a free 925 sterling silver chain will be included with this pendant and packed into a beautiful gift box. Shown in photos on an 16 inch chain. This pendant comes from one of my favorite lots (along with most of the Mexican Opals I’ve listed). New inventory without price tag; SKU# sticker added. I ship jewelry attractively packaged & ready for gift giving. Offers considered. Bundle to save more. Questions? Please leave a comment below