They measure approximately 13-16mm long by 9mm wide by 7-8mm thick. The item "5 pcs ETHIOPIAN BLACK OPAL Welo 13-16mm Faceted Nugget Beads /N11" is in sale since Monday, March 11, 2019. This item is in the category "Jewelry & Watches\Loose Beads\Stone". The seller is "lqgemworks" and is located in Prescott Valley, Arizona. This item can be shipped worldwide.