天然「巴西」亞歷山大變色石配鑽石戒指

• 橢圓形天然「巴西」亞歷山大變色石重4.55卡拉
• 配鑽共重約1.50卡拉
• 鉑金鑲嵌
指環尺寸：6½

Colour and Clarity: According to the AGL report, the alexandrite is natural, of Brazilian origin, with no gemmological evidence of enhancements/treatments, shows prominent colour-change and the quality of colour-change is excellent. Please refer to the report for detalls. In our opinion, the alexandrite is of deep tone, eye-clean, and shows very strong colour change from blue-green in the daylight to red-purple in the incandescent light. Under the 10x loupe inspection, there are minor typical inclusions with one surface reaching to the crown facet, a few tiny pits at the facet junctions, but all not visible to the naked eye. The diamonds are about H to I colour, VS to SI1 clarity. Condition: Platinum ring mount, with minor hairline scratches, otherwise in very good condition.
In response to your inquiry, we are pleased to provide you with a general report of the condition of the property described above. Since we are not professional conservators or restorers, we urge you to consult with a restorer or conservator of your choice who will be better able to provide a detailed, professional report. Prospective buyers should inspect each lot to satisfy themselves as to condition and must understand that any statement made by Sotheby's is merely a subjective qualified opinion. Illustrations in the catalogue may not be actual size. Prospective purchasers are reminded that, unless the catalogue description specifically states that a stone is natural, we have assumed that some form of treatment may have been used and that such treatment may not be permanent. Our presale estimates reflect this assumption.
NOTWITHSTANDING THIS REPORT OR ANY DISCUSSIONS CONCERNING CONDITION OF A LOT, ALL LOTS ARE OFFERED AND SOLD "AS IS" IN ACCORDANCE WITH THE CONDITIONS OF SALE PRINTED IN THE CATALOGUE.

附瑞士美國AGL證書﹙編號CS 84612，日期2015年3月16日﹚• 亞歷山大變色石產地為巴西 • 變色效果明顯 • 日光下呈藍綠色，黄光下呈紫色 • 未經加工處理