Compared with a new interconnect at this level, £1,537 sits above the typical used market for this cable but still below the top end, so I’d call it a little ambitious rather than outlandish. Against the recent GBP comps, it is above the £1,040 median and sits between the £741 lower quartile and £1,922 upper quartile, so it won’t feel like a bargain unless the condition and provenance are unusually strong.
That said, this is the sort of cable buyers chase for a reason: Tellurium Q’s top DIAMOND line is known for a very clean, low-grit presentation, strong timing, and a way of letting systems sound more coherent without making a fuss about itself. If the cable is genuinely well cared for, from a tidy one-owner setup, and includes the right terminations/boxing, the main upside here is getting a reference-grade interconnect without paying full retail.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.