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A Cat's-Eye Alexandrite, Colored Sapphire & Diamond Ring 5.83克拉「巴西」天然貓眼亞歷山大變色石 配 彩色剛玉及鑽石戒指, 貓眼亞歷山大變色未經任何加工處理
An oval cabochon cat's-eye alexandrite chrysoberyl, 5.83 carats Surrounded by coloured sapphires Platinum Size 6¼ (5.83-carat Cat's-eye Alexandrite Chrysoberyl) AGL report, numbered CS39733, dated 6 June 2008, Brazil, no gemological evidence of enhancements/ treatments present. 附 美國AGL 證書 Catalogue Essay One of the world's rarest and most fascinating gemstones throughout history is Alexandrite, a gem variety of the mineral chrysoberyl that changes color from green in daylight to red in incandescent light. The present cat's eye alexandrite is a fine example of this specimen, it is particularly incredible because it exhibits two rare phenomena: both the cat's-eye effect and color-change. Read More Catalogue Essay 亞歷山大變色石是金綠寶石的一種，在歷史上最稀有和最微妙的寶石之一，日光下呈綠色，但在黃光下呈紅色。這顆貓眼亞歷山大變色石同時擁有「貓眼」和「變色」兩種稀有現象，在同類形寶石中是絶佳的例子。 Read More