沒有保留價 - 1 pcs 藍色 黃玉 - 7.09 ct - Antwerp Laboratory for Gemstone Testing (ALGT)

自然伦敦蓝托帕石 – 7.09 克拉 – 椭圆形混合式切工 – ALGT 认证

Offered is a beautiful natural London Blue Topaz weighing an impressive 7.09 carats, displaying a rich deep blue colour with excellent transparency. The gemstone has been fashioned in an elegant oval mixed cut, enhancing its brilliance and making it ideal for a bespoke ring, pendant, or collector's piece.

这颗宝石呈现出迷人的天然伦敦蓝托帕石，重量为惊人的 7.09 克拉，颜色浓郁深邃，透明度出众。宝石经艺匠精心打造为优雅的椭圆形混合切工，提升了耀眼度，非常适合订制戒指、吊坠或藏家收藏之用。

The stone exhibits an attractive, even colour distribution with lively brilliance and a pleasing face-up appearance. It is accompanied by an ALGT (Antwerp Laboratory for Gemstone Testing) Identification Report, providing additional confidence in its authenticity.

这颗宝石色彩分布均匀，光泽活泼，正面外观令人悦目。附有 ALGT（安特卫普宝石测试实验室）识别报告，进一步增强了其真实性的可信度。

Gemstone Details
Species: Natural Topaz
Variety: Blue Topaz
Trade Colour: London Blue
Shape/Cut: Oval Mixed Cut
Weight: 7.09 ct
Measurements: 13.91 × 10.01 × 6.57 mm
Transparency: Transparent

宝石详情
种类：天然托帕石
品种：蓝托帕石
商品颜色：伦敦蓝
形状/切工：椭圆形混合切工
重量：7.09 克拉
尺寸：13.91 × 10.01 × 6.57 毫米
透明度：透明

Certification
Laboratory: ALGT – Antwerp Laboratory for Gemstone Testing
Report Number: 55327315

认证
实验室：ALGT – 安特卫普宝石测试实验室
报告编号：55327315

According to the accompanying ALGT report, blue topaz is commonly enhanced by irradiation and/or heating to achieve its colour. Current gemmological methods cannot determine whether this particular gemstone has undergone such treatment, which is standard industry practice for blue topaz.

根据随附的 ALGT 报告，蓝托帕石通常通过辐照和/或加热来实现其色泽。目前的宝石学方法无法确定这颗宝石是否经过此类处理，而这正是蓝托帕石行业的标准做法。

The photographs were taken under different lighting conditions to provide an accurate representation of the gemstone's colour and overall appearance. Please review all images carefully, as they form an integral part of the description.

照片在不同光照条件下拍摄，以提供宝石颜色和整体外观的准确呈现。请仔细查看所有图片，因为它们是描述的不可或缺部分。

A fine certified London Blue Topaz of substantial size, suitable for jewellery or as an addition to any gemstone collection.

一颗体积充足、经过认证的优质伦敦蓝托帕石，适合用于珠宝饰品，或作为任何宝石收藏的增补。