Glitter pigment, pigment-containing composition, and pigment-containing painted product

A glitter pigment, comprising:

• a flaky substrate;
• and
• a silicon oxide layer and a titanium oxide layer formed in this order on the flaky substrate, wherein
• the silicon oxide layer and the titanium oxide layer are formed on both a first principal surface and a second principal surface of the flaky substrate, the first principal surface and the second principal surface being opposite to each other,
• the titanium oxide layer, the silicon oxide layer, the flaky substrate, the silicon oxide layer, and the titanium oxide layer which are arranged in this order along a thickness direction of the flaky substrate compose a five-layer optical interference system producing whitish reflected light,
• the flaky substrate is a glass flake,
• the glass flake has a thickness of 294 nm or more and 314 nm or less,
• the silicon oxide layer has a thickness of 92 nm or more and 102 nm or less,
• the titanium oxide layer has a thickness of 55.9 nm or more and 76 nm or less, and the glitter pigment surrounded by air produces reflected light having absolute values of a* and b* that are each 20 or less and an L* value that is 72 or more as calculated by an optical simulation.