Selling some of my gold rings , for a short time , due to the taxman wanting money . Visit my other items for more rings.    They are used but are in good shape. May contain small flaws . Any questions or concerns , please ask before purchasing.  Gold karat tested . I am no gemologist , I am using a Presidium II tester to identify stones . Shipping is 14.00 . This covers shipping, insurance and signature required . Not sure of stone See gage on tester.  Red and Yellow are in the Ruby Sapphire range. The green is in the jade/spinel range. I cannot see the mark on the ring but comes up as 12k on my tester.