The 187.7 ct“Diavik Foxfire,” discovered in spring 2015,is the largest gem-quality rough diamond found to date at the mine.
星群”在拍卖后成为目前世界拍卖价格最高的钻石原石,不过这个记录预计马上就会打破。
Constellation" after the auction to become the world's highest auction price of rough diamonds, but this is expected to soon break the record.
废除关于来自国外原石的贸易保护主义进口法规,实际上有助于斯里兰卡宝石产业变得更强大。
Abandoning protectionist import regulations on rough from foreign sources has actually saved Sri Lanka's gemstone industry from remaining a smaller player.
相比之下,今年售出的超过1.4亿克拉天然钻石原石估计可生产2500万至3000万克拉天然成品钻石。
In comparison,production of the 140 million+ carats of natural diamond rough sold this year resulted in an estimated 25 to 30 million carats of polished natural diamonds.
年,南非每年出口的钻石原石仅为约200克拉,而1888年则急剧上升至约380万克拉。
The annual export of rough diamonds from the country, which in 1867-1868 was only about 200 carats, rose dramatically to approximately 3.8 million carats by 1888.
作者介绍了钻石原石的分类体系,即按晶体形状、透明度、晶体棱角、晶体规律性与内含物含量进行分类。
The authors present a classification scheme for rough diamonds, categorised by crystal shape, transparency, crystal angularity, crystal regularity and inclusion content.
English
Bahasa indonesia
日本語
عربى
Български
বাংলা
Český
Dansk
Deutsch
Ελληνικά
Español
Suomi
Français
עִברִית
हिंदी
Hrvatski
Magyar
Italiano
Қазақ
한국어
മലയാളം
मराठी
Bahasa malay
Nederlands
Norsk
Polski
Português
Română
Русский
Slovenský
Slovenski
Српски
Svenska
தமிழ்
తెలుగు
ไทย
Tagalog
Turkce
Українська
اردو
Tiếng việt