14K (solid) yellow gold three stone ring

14K (solid) yellow gold three-stone ring which weighs 3.9 grams and is size 6 The ring is stamped "14k" inside the band.e experience of my jeweler who states that the white stones and the Red stone is most likely Garnet. The Iolite measures approximately 8mm x 5.9mm x 3mm which translates to about .68ct. while using an electronic diamond tester I can confirm that the white stones are not diamonds, but that is the extent of my ability to test gems