古罗马，帝国 罗马玻璃珠戒指

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Ring with Roman blue and green glass beads. The authentic ancient beads are set on a modern gold-plated ring and are free to rotate (swivel-type).

具有罗马风格蓝绿玻璃珠的戒指。真品古珠镶嵌在现代镀金戒指上，可自由旋转（转动式）。

Outside diameter: ± 22,7 mm
Inside diameter: ± 19,9 - 17 mm
Diameter beads: ± 7,4 mm

外径：± 22,7 毫米
内径：± 19,9 - 17 毫米
珠子直径：± 7,4 毫米

Condition: good condition and wearable. The ancient beads are combined with modern gold-plated spacer beads and fittings. Signs of wear consistent with age and use.

状态：良好，佩戴使用正常。古珠与现代镀金分隔珠及配件相结合。磨损痕迹符合年龄和使用情况。

Please note: photographed in a professional studio against a deep black background to enhance contrast and detail. Studio lighting and individual screen settings may slightly affect the appearance of colours.

备注：在专业工作室以深黑背景拍摄，以增强对比和细节。工作室照明和个人显示设置可能略微影响颜色的呈现。

-> Every ancient bead shows subtle variations and signs of age, reflecting its history and adding to the unique charm of every design.

-> 每颗古珠都呈现出细微的差异和岁月痕迹，体现其历史，也为每件设计增添独特的魅力。

Certificate of Authenticity: available upon request (pdf-format) for items with a hammer price of € 100 or more.

真实性证明：如交易底价达到或超过€100，可应要求提供（pdf格式）。

-> Glass has always been found in nature, but the humans first created glass about 4.000 years ago. when ancient craftsmen in Mesopotamia discovered the art of mixing sand, soda and lime to make glass.

玻璃自古就存在于自然界，但人类大约在4000年前首次制造玻璃。当时的美索不达米亚的古代工匠发现混合砂、碱和石灰制造玻璃的工艺。

For centuries, glass was a luxury item and reserved for the upper classes.

多个世纪来，玻璃一直是奢侈品，只供上层社会使用。

Glassmaking centers around the Mediterranean world experimented with new techniques (casting, core-forming, mosaic glass) and with colours by adding metallic oxides (cobalt, copper, etc) to the mixture.

地中海地区的玻璃制造中心尝试新工艺（铸造、芯模成形、马赛克玻璃）并通过在混合物中添加金属氧化物（钴、铜等）来着色。

The Romans learned the glass-making craft after the conquest of Egypt in the 1st century BC.
During the 1st century AD the glassblowing technique revolutionized the production and made it possible to produce larger quantities.
By adding manganese dioxide Roman glassmakers successfully produced colourless or ‘aqua’ glass for the first time.

公元前1世纪，罗马人在征服埃及后学习了玻璃制造技艺。公元1世纪，吹制玻璃技术彻底改变了生产，使大规模生产成为可能。通过添加二氧化锰，罗马玻璃匠首次成功地生产出无色或“水蓝色”的玻璃。

Roman glass became a very popular material, used for beads, glass windows, mosaic tiles, tableware pieces etc.
Roman glass was traded all over the Roman Empire and far beyond to Central Africa, Scandinavia and via the Silk Route to China.

罗马玻璃成为非常受欢迎的材料，被用于珠子、玻璃窗、马赛克瓷砖、餐具等。罗马玻璃在整个罗马帝国及更远地区贸易，遍及中非、斯堪的纳维亚，并经丝绸之路传到中国。