Natural Pink Imperial Topaz Cocktail RingUnique cocktail ring set with an 6. 18 carat elongated oval natural pink imperial topaz . Imperial pink topaz is not to be confused with a regular treated topaz stone. It is a rare natural occurring gem stone often found in Brazil and is considered by many to be a collectors gem stone. The ring has been set in our Georgie setting in 18k yellow gold with a 2 mm round band. The gem could be reset if preferred. Would make a lovely cocktail ring or