Lechleitner synthetic Emerald312 views
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310 views
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143 views
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Orange Flash of Opticon Filling in Emerald332 viewsSame emerald but tilted slightly, so that the colour flash is now blue. (Photo: R.W. Hughes)
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Chatham synthetic Sapphire332 viewsSimilar inclusions appear in Chatham synthetic rubies, with the addition of thin white-appearing needles of platinum (both straight and curved), transparent clusters of colourless hexagonal tabular crystals, white wispy veils of fine textured flux and white flux fingerprints.
Some blue Chatham synthetic sapphires luminesce pale green in L.W. U-V and dull green in S.W. U-V (natural blue sapphires are generally inert).
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419 views
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366 views
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Rubies390 viewsWhy are rubies considered the top red precious stone we can get? Apart from their extreme rarity(unheated stones), their hardness as well as this special fluorescent red. This fluorescence gives a punch of red that glows; it lights up as red flame when compared with other red stones. The other red stone that has such a quality of burning red fluorescence is the red spinel - but they can be found in larger sizes up to 10+ carats(but they are not too common). Fine untreated rubies start to become very rare in 3+ carat sizes.
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