These gems are named, "The Mulberry-Blossom Twins."
You most likely will never see one, mulberry-blue, bicolor, Peruvian opal in your lifetime, much less two matching rarities., Bicolor, Mulberry and Ice Blue Peruvian opals were considered to be an Asian myth. Originating in China which was there first known reference in text.
When I purchased these two I had heard of such existing but figured I would take a rather uncalculated risk and take a wild shot that the two might be excellent fakes. These, two amazing gems that my eye's wanted to perceive as untreated, natural, earth-mined, gemstones were an impossible long shot.
The top gem dealers in America said, "I was taken for a bad ride," and bought the equivalent of Jack's beans in the childrens's story, Jack & the Beanstalk, but to expect no goose laying golden eggs, or even a giant, as my vine would not be growing. I was told by the Thai dealer this was called, "Mulberry-Blossoming," and was very rare, brought great luck, and wealth. So here I was with my two tone opal likely as fake as a $10.00 diamond. But they turned out to be right.
When GIA returned the gems as untreated; it blew my mind. I exhausted myself following leads in Thailand, China, and even Japan looking for the elusive two -tone Peruvian opal in mulberry and ice-blue. But it was essentially just more vocal myths with no substantiation, yet constant acknowledgement, at least in the Asian community. The only thing that maintained itself was the name, "Mulberry Blossoming Opal."
The internet was of little use, except acknowledging that in the early 19th century a ring existed of Peruvian opal with the base akin to a "a pomegranate in color, topped by an elegant iced blue." purchased by a passenger aboard an English tall ship in China. Big help.
I talked to every gemologist I knew in Europe and America and none had heard of a blue and red bicolor Peruvian but here it was. and now armed with a GIA certification I could prove it was without treatment.
Again comes a gemological unicorn that will likely never beset or spied by these old eyes but what a joy it was to have them in my collection for even a few years.
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