The stone shapes are off oval and their dimensions are approximately 10mm x 7mm x 2.5mm thick. The total weight of all three stones is four cts.
These doublets are very bright and lively with flashes of blue, yellow, green and red and were created with opal from the Andamooka area of Australia. I purchased these stones from the well-known Australian opal dealer, Paul Christiansen. These doublets are as good as it gets. I personally never got around to setting them up in jewelry.