Bvlgari Allegra Multi Gemstone & Diamond Ring, 18ct Yellow Gold, Size 55 / O 1/2Bvlgari Allegra Multi Gem & Diamond Ring in 18ct Yellow Gold A vibrant celebration of colour and luxury, this exquisite Bvlgari Allegra Ring features a unique triple band design crafted in 18ct Yellow Gold. Set with a mix of bold, cabochon cut gemstones including a Pear Cut Peridot, Round Cut Blue Topaz, Oval Cut Pink Tourmaline, and Emerald Cut Citrine the design is elevated with 21 Round Brilliant Cut Diamonds totalling approximately 0. 86ct.