This is a very pale aquamarine. The light blue color may be difficult to see, but we appreciate your understanding of the individual differences inherent in natural stones. As it is an older piece, there is no gemstone hallmark, but it is estimated to be approximately 0.8 to 1 carat. I am truly, truly sorry, but please refrain from requesting photos of it being worn. I'm a little tired... (＞ 人＜;) Stamped K18WG Stamped 0.02 for diamonds Weight: 2.19g This item will be shipped via Nekopos. Thank you for your understanding.