This sterling silver elongated ring has two different colors of blue topaz. They test as topaz on my machine as shown in the picture. The ring is marked SETA and 925 and it tests good as silver. The ring is a little over 1.5" by 3/4". It weighs 13.9 grams and is a size 7. Very interesting ring! 

This ring is pre-loved and will show signs of wear consistent with use like discoloration and scuffs. 

Thanks for looking!