Riyogems 1PC Blue Chalcedony Cabochon 8x16 mm Marquise Shape great Quality Gems. Blue Chalcedony Gems is Birthstone of December Month . Blue great Quality Blue Chalcedony Gems Birthsign is astrology Sagittarius. Blue Cabochon Blue Chalcedony 8x16 mm Marquise Shape Gems (A)Riyogems 1PC great Quality Cabochon Blue Chalcedony 8x16 mm Marquise Shape (B)For Item issue:- Actual Gemstone Color and Gemstone Image may be slightly some different due to Lighting and photographic sources or your individual monitor settings. (C)For Return Policy :- After you get the items we offer 30 Days Return policy for the items. The Buyer Can send back the items if there is any issue with the items. The buyer will pay the return shipping charges. We Will send a replacement items, if there is any manufacturing issue with items. (D)For Item Confirmation:- Please Make Sure to cross Check for Gemstone Size according to the Gemstone Shape chart provided in images. if you have any doubt or want correction for Gemstone size please message us. (E)For Custom Order:- we can make Gemstone your choice according. Example- Gemstone size change and Shape change. and your Gemstone Type we can make.