GEORGOUS STERLING SILVER POLISHED TURQUOISE & AGATE GEM STONES NECKLACE. I BELIEVE THAT THESE STONES ARE TURQUOISE AND AGATE. I AM NOT A GEOLOGIST SO YOU BE THE JUDGE. NO FLAWS OR ISSUES THAT I CAN SEE. OTHER THAN SOME TARNISHING. I AM SURE IT WILL POLISH UP OR LEAVE IT ALONE. ANYWAY PLEASE LOOK OVER PHOTOS THEY ARE MY DESCRIPTION.