Gemstone Treatments - InternetStones.COM Forum https://forums.internetstones.com/community/gemstone-treatments/ InternetStones.COM Discussion Board en-US Thu, 14 May 2026 18:02:59 +0000 wpForo 60 Difference between heated, unheated and glass filled blue sapphire gemstones? https://forums.internetstones.com/community/gemstone-treatments/difference-between-heated-unheated-and-glass-filled-blue-sapphire-gemstones/ Sat, 25 Oct 2014 11:06:02 +0000 Prices of Blue sapphire depends on its characteristics - Natural or glass filled. Both heated and unheated are called natural but see how unheated sapphire changes the color and clarity during heating process.

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