Blue Topaz 21.31 carats Sterling Necklace

This is a beautiful Blue Topaz in .925 Sterling Silver. This Blue Topaz weighs 21.31 carats. It measures 19.91 x 15.05 x 7.54 mm, that's about .78 x .59 x .30 inch. This gem is fully faceted. It has formed in the earth. I have hand set this gemstone into this solid .925 sterling silver pendant. Also...