Stuart Weitzman women’s satin black kitten heels women’s 4.5 but looks like 6.5

Stuart Weitzman Black Kitten heel, approx 1” Pointed toe NWOT new without tag condition The size on the shoe says 4.5 but I’m thinking it might be a UK size which would be about a 6.5 in US The last pic shows the shoe in comparison to a US Women’s 8 Will accept return for size as long as in same condition I am listing as a 6.5 bc of this discrepancy