This sterling silver malachite pendant is made and hallmarked by Dine (Navajo) artist Cooper Willie. It measures 2.6" long from the top of the bail by 1.5" wide. The inside measurement of the bail is 9.5mm.
This pendant is pictured on a sterling silver 3mm Bali Foxtail chain which can be purchased separately here. The price for this item is only for the pendant.