Signed with the Ace hallmarks who consistently produced quality workmanship. The stone is onyx and you will see glare in the pictures shown as the onyx is polished. All stones are cut with a flat top showing off an unsuspecting flair to the presence of this necklace. We have 71 grams of heft and a wearable 16 inches in length. The drop is 2.5in. tall and 3.5in. across. The presence of this piece will take you to dress occasions and fantastic with jeans as well. No cracks or flea bites or damage of any kind, just LOOK AT THAT NECKLACE!