No VAT will be charged on the hammer price, but VAT at 17.5% will be added to the buyer's premium which is invoiced on a VAT inclusive basis.
THE PROPERTY OF A EUROPEAN COLLECTOR
Post Lot Text
C.f. J. Boardman & D. Scarisbrick, The Ralph Harari Collection of Finger Rings, London, 1977, p. 65, plate 149 for similar mount detail.