It seems that the theory is now that the top diamonds of the Sapphire Tiara were - at some point - used to replace the brown diamonds of the necklace/tiara by Mellerio which was later used as a wedding tiara for Mabel. Thing is we don't have a picture (yet) of the original necklace/tiara so we don't know what it looks like.
Anyway, if this theory is right then perhaps simply because the diamonds were interchangeable it was believed this small tiara was a second setting of the larger Sapphire Tiara.
The Court may not have kept very good records of the purchases and changes to the Jewels themselves or were simply 'creative' when issuing statements on Jewels in the past.
--Previous Message-- : Does that mean that the diamonds on princess : Mabel's wedding tiara are indeed fixed and : not interchangable? : : --Previous Message-- : The monture worn by Princess Mabel at her : wedding day was from Mellerio, it originally : had a mix of white and brown (???) diamonds : but later was all white diamonds. : : :