If there is anyone who can rival the opulence of the house of Versace, it is master jeweller Joel Arthur Rubinstein, a.k.a. JAR, whose shamelessly glitzy objets d'art will be brightening up the stately surrounds of Somerset House (closed only on Christmas Day) until Sun 26 Jan. Likened to the work of Faberge and Lalique, The Jewels Of JAR range from butterflies and beasts to more abstracts pieces, their every surface encrusted with rare gems. Aesthetically, they teeter on the boundaries of good taste (in fact, the sheer weight of precious stones ought to be enough to haul them over the edge), but the skill and craftsmanship involved is unmistakeable, and some of the 400 pieces on show here represent the work of years. Stepping into the show's semiobscurity, each visitor is handed a torch to set this Aladdin's cave of rubies, sapphires and amethysts a-twinkling.