We prove that every smooth Fano threefold from the family No 2.8 is K-stable. Such a Fano threefold is a double cover of the blow-up of $\mathbb{P}^3$ at one point branched along an anti-canonical divisor.
Thresholds, valuations, and K-stability
K-stability of cubic fourfolds
On K-stability for Fano threefolds of rank 3 and degree 28
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