Welcome to The Rockhounder's Gems! Here is a bright Yellow Welo Solid Opal. In low light, it glows dark Orange with Yellow , Green and Blue highlights!!! This gemstone weighs 2.01cts and is set in a. Also included is a lightweight brand new 18 Sterling Silver chain!! Will keep a box open for you. Thank you for your time! The item "2ct Yellow ETHIOPIAN WELO OPAL Faceted 9mm Round 925 Sterling Silver Pendant" is in sale since Thursday, November 7, 2019. This item is in the category "Jewelry & Watches\Fine Jewelry\Fine Necklaces & Pendants\Gemstone". The seller is "sirbobrob9" and is located in Kalispell, Montana.