0.77ct Solid Crystal Opals (lso540)This Crystal Opal Weighs 0. 77ct and is Shaped as a Freeform Cut. Measuring in at 4. 5mm(w) x 14. 5mm(h), This Opal Displays Vibrant Flashes of Blue and Green Play in a Semi Transparent Background. All Our Loose Stones Come Packaged in a Display Box If You Have Any Questions or Would like to Arrange a Setting to be Made for these Stones Please Either Call us During Our Opening Hours, Or Email us Directly on the Contacts Page.