21.80 Ct Natural Yellow Opal Blue Fire Extremely Rare Oval Certified Gemstone. Product Name: Natural Fire Opal. Measurement: 22.50 x 16.90 x 11.10 mm. Transit time includes normal weekdays. Thank You and Happy Shopping.This item is in the category "Jewelry & Watches\Loose Diamonds & Gemstones\Loose Gemstones". The seller is "glitzygems17" and is located in this country: IN. This item can be shipped worldwide.