Disclaimer: I have no knowledge about this item. It was obtained in a storage locker auction. I believe it is some form of jade but I have not had it professionally tested. 

 I have no way of knowing if this piece was enhanced, chemically bleached, dyed or stained. 
 I don't know if it's grade A, B or C.  You will be purchasing for the beauty, detail and overall look this piece has.  
14 days to return if you receive the wrong item or description is grossly misleading.

Pictures 1-3 topside, 4-5 side, 6 back side, 7 cord and 8 translucence. Measurements 13/16” wide x 1 5/8” long x 3/8” total thick, Weight with cord 0.4 oz / 12 grams. Two sided, two tone, very translucent. Detailed texture. Excellent workmanship. Item will have stone lines or crevices. These are all natural and they are not flaws. They are not cracks. Attached with a braided string necklace (last picture).