If I ran a modern adventure and my PCs got their hands on Fabergé's Winter Egg, and they asked me what it was worth, I wouldn't tell them "Anywhere from 1.1 million dollars to 66 million dollars". I'd tell them, "It sold for 9.6 million dollars ten years ago. Probably worth a bit more today. Call it 10-12 million dollars."
OK, so different Imperial Fabergé eggs range from an estimated value of 3-4 million dollars for the Rosebud Egg and the Hen Egg to 18.5 million dollars for the Coronation Egg. (which is still a much smaller range than 1-60). And if Keramish globes were exact cognates, I'd establish a similar range. But they're not. Their values are homogenized, if that's the word I want, by the inherent trait of being exchangable for an Imperial barony regardless of their intrinsic value. This would give them all roughly the same value regardless of material and construction. Certainly a lot less that a difference of a factor 60, or even a factor 6. (Now, if one of them was really exceptional and potentially worth a marquisate... :devil
Hans
OK, so different Imperial Fabergé eggs range from an estimated value of 3-4 million dollars for the Rosebud Egg and the Hen Egg to 18.5 million dollars for the Coronation Egg. (which is still a much smaller range than 1-60). And if Keramish globes were exact cognates, I'd establish a similar range. But they're not. Their values are homogenized, if that's the word I want, by the inherent trait of being exchangable for an Imperial barony regardless of their intrinsic value. This would give them all roughly the same value regardless of material and construction. Certainly a lot less that a difference of a factor 60, or even a factor 6. (Now, if one of them was really exceptional and potentially worth a marquisate... :devil

Hans