An Edwardian Yellow Gold, Color Change Sapphire and Diamond Ring, containing one almond shape mixed cut color change sapphire measuring approximately 11.36 x 9.72 x 5.34 mm and 10 old mine cut diamonds weighing 2.10 carats total. 5.30 dwts. Estimate $ 7,000-9,000 Gem Characteristics (graded in setting) Sapphire It is the opinion of the gemologist (Alexander Eblen) that the sapphire in this ring exhibits internal characteristics consistent with those observed in natural sapphires that have not been color enhanced through heat treatment and that the most likely location of geographic origin would be Ceylon (Sri Lanka). Ring is approximately 6.5. The stone displays a strong color-shift phenomena, showing a medium blue hue in daylight-equivalent lighting changing to a medium purple hue in incandescent lighting.
An Edwardian Yellow Gold, Color Change Sapphire and Diamond Ring, containing one almond shape mixed cut color change sapphire measuring approximately 11.36 x 9.72 x 5.34 mm and 10 old mine cut diamonds weighing 2.10 carats total. 5.30 dwts. Estimate $ 7,000-9,000 Gem Characteristics (graded in setting) Sapphire It is the opinion of the gemologist (Alexander Eblen) that the sapphire in this ring exhibits internal characteristics consistent with those observed in natural sapphires that have not been color enhanced through heat treatment and that the most likely location of geographic origin would be Ceylon (Sri Lanka). Ring is approximately 6.5. The stone displays a strong color-shift phenomena, showing a medium blue hue in daylight-equivalent lighting changing to a medium purple hue in incandescent lighting.
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.jpg "Quelle: Christie's")
.jpg "Quelle: Christie's")
