Spinel Gemstones: Hardness, colors, prices and heat treatments Dominique Flux 9:03 2 years ago 12 225 Скачать Далее
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Color change Spinel and Red Spinel. Extremely Rare and impossible to find. JupiterGem - Gems & Jewelry 6:27 4 years ago 4 353 Скачать Далее
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