A cognac diamond and diamond necklace, comprising a central panel of seven bezel set alternating cognac and white diamonds, together totalling 0.85cts, suspended on a flat, curblink chain, in two tone 18ct gold, total length 395 mm, retailed by Hardy Brothers. Campagne diamonds C6-C7/VS-SI1, Ef/VS/SI1, valuation by Holloway diamond States necklace was accompanied by a Hardy Bros valuation dated 18.12.00 stating the diamonds are from the Argyle mine. The reference quoted was #9Q078. This Hb valuation has not been provided.