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天然钻石协会:2025巨型天然钻石研究报告:成因、历史、产地、市场及价值(英文版)(38页).pdf

上传人: 1****1 编号:1000472 2025-12-26 38页 15.84MB

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1、1Diamond ReportsA SERIES OF REPORTS UNCOVERING THE TRENDS,ORIGINS AND UNIQUE IMPACTS OF THE ULTIMATE NATURAL GEMSTONE.RECORD-BREAKINGDIAMONDS|DIAMOND REPORTS:Record-Breaking Diamonds QUICK FACTSDISCOVERED IN 1905 IN SOUTH AFRICAOnly a handful in history have exceeded 1,000 carats,and each discovery

2、has reshaped what we know about diamond formation,mining and craftsmanship.3,106 caratsLarge diamonds are geological outliers extreme rarities formed deep within the Earth.The Cullinan Diamondis the largest gem-quality rough diamond ever found.IMAGE:Cullinan Diamond,roughCREDIT:Royal AsscherIMAGE:Mo

3、tswedi diamond,roughCREDIT:Lucara DiamondTHE KOH-I-NOOR DIAMOND originated in Indias Golconda region is seen as the first truly monumental diamond on record.3ADVANCED X-ray technology NOW ENABLES EXCEPTIONALLY LARGE DIAMONDS TO BE IDENTIFIED EARLY,ENSURING THEY REMAIN INTACT.THE WORLDS LARGEST DIAMO

4、NDSFORM FAR DEEPER THAN MOST OTHERSUp to 750kmBELOW THE EARTHS SURFACE.THEY ARE ALMOST ALWAYS TYPE IIA,CHEMICALLY PURE AND NITROGENFREE.SURFACE.but why that is remains a mystery.Karowe,Leteng and Cullinan mines dominate the large diamond discoveriesThe CTFPink Star59.60 caratsSOLD AT AUCTION FOR$71.

5、2 MILLION,making it the most expensive diamond to go under the hammer.The ConstellationMOST EXPENSIVE ROUGH EVER SOLD:$63.1MILLIONfor an 813-carat diamond.The Hope Diamond is displayed at the worlds largest museum,the Smithsonian Institution in Washington DC,where it has captivated more than 100 MIL

6、LION VISITORS,making it one of the most viewed diamonds in history.IMAGE:The largest polished diamond from the Lesotho Legend:a 79.35-carat oval.CREDIT:Ilan Tach Photography,photograhed for Groupe Tach and DiamcadIMAGE:Motswedi diamond,roughCREDIT:Lucara D|DIAMOND REPORTS:Record-Breaking Diamonds Ta

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根据《钻石报告:创纪录的钻石》内容,以下为全文关键点概括: 1. **历史发现**:文章回顾了历史上最大的钻石发现,如1905年南非的Cullinan钻石(3,106克拉),以及2015年博茨瓦纳Karowe矿的Lesedi La Rona钻石(1,109克拉)。 2. **钻石类型**:文章介绍了钻石的类型,包括工业级和宝石级,以及化学纯度分类(如Type I和Type II)。 3. **Cullinan钻石**:Cullinan钻石是迄今为止发现的最大的宝石级钻石,被切割成105颗宝石,包括9颗主要宝石。 4. **Motswedi钻石**:Motswedi钻石(2,488克拉)是第二大的宝石级钻石,目前仍以原石形式存在。 5. **Lesedi La Rona钻石**:Lesedi La Rona钻石被切割成67颗宝石,其中最大的为302.37克拉。 6. **地质因素**:文章探讨了钻石形成的地质条件,包括它们在地球内部形成的深度和火山活动。 7. **技术进步**:X射线传输技术等先进技术帮助矿工早期识别大钻石,确保其完整。 8. **拍卖记录**:CTF Pink Star(59.60克拉)和Constellation(813克拉)是历史上最昂贵的原石,分别以7110万美元和6310万美元的价格售出。 9. **博物馆收藏**:Hope Diamond和Regent Diamond等著名钻石被收藏在博物馆中,成为历史和文化的象征。
世界上最大的钻石有多大? 什么样的钻石最珍贵? 哪些著名钻石被收藏在博物馆?
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