18kt gold necklace with diamonds and tsavorites

Material: 18kt yellow gold (750/1000). Made in Greece. Stone details I: white diamonds, round-cut. Stone I carat total weight (ctw): 0. 48. Stone details II: black diamond, round-cut. Stone II carat total weight (ctw): 0. 21. Stone details III: tsavorite. Stone III carat total weight (ctw): 0. 01. Designer color name: Yellow Gold. Yellow gold.