500 Tenge Eagle Owl

Kazakhstan's wildlife coin program has produced dozens of issues, but the Eagle Owl entry is notable for incorporating an actual diamond — a 1mm stone set into the design. The National Bank contracted this through the Kazakhstan Mint, which has refined stone-setting into silver blanks as a technical specialty since the mid-2000s. The Eurasian eagle owl (Bubo bubo) holds protected status in Kazakhstan under national Red Book legislation, a classification that directly drives these commemorative programs as a form of conservation documentation.