6.42 carats total gem weight There are 27 exquisite untreated natural gemstones including: -3 aquamarines (the largest central delicate blue stone is one of these) -10 garnets (2 pyrope, 5 spessartite, 3 rhodolite) -9 tourmaline (8 green, 1 pink) -5 amethyst The central aquamarine measures 4.9mm whilst the average diameter of the other gorgeous natural gems is 3.9mm. solid 14 karat yellow gold, 6.35 grams. 6 3/4 US (N Australia/UK), it can readily be sized. cluster measures 3/4" long by 13/16" wide and rises 9/16" high off the finger (19mm x 20mm x 15mm). in beautiful condition- ready to gift or to wear. GEM REPORT MAKE AN OFFER WELCOME The photos form part of the description. Like all colored stones there is a color variation that occurs in different lighting conditions both inside but also outside, even the time of day can make the color of a stone appear a little different. We do our best to show colors as we see them. Color perception is highly individual and some people can perceive more colors than others, also colors can appear somewhat different on different screens and devices due to variations in screen hardware and device display settings.