{"title":"Features of Synthetic Diamonds","authors":"S. eaton-magaña, C. Breeding","doi":"10.5741/GEMS.54.2.202","DOIUrl":null,"url":null,"abstract":"synthetic diamond production: high-pressure, hightemperature (HPHT) growth and chemical vapor deposition (CVD) growth. It also provides the major gemological and spectroscopic features used to identify these lab-grown diamonds. The last few years have seen numerous advancements in synthetics: the rapid evolution in CVD technology, the ability to produce 10+ carat HPHT synthetics, and the proliferation of HPHT-grown colorless melee diamonds. The far left column of the chart focuses on features of melee-sized lab-grown diamonds (those less than 0.2 ct), while the far right column presents photos and photomicrographs of large (greater than 5 ct) faceted","PeriodicalId":12600,"journal":{"name":"Gems & Gemology","volume":" ","pages":""},"PeriodicalIF":1.6000,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Gems & Gemology","FirstCategoryId":"89","ListUrlMain":"https://doi.org/10.5741/GEMS.54.2.202","RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MINERALOGY","Score":null,"Total":0}
引用次数: 1
Abstract
synthetic diamond production: high-pressure, hightemperature (HPHT) growth and chemical vapor deposition (CVD) growth. It also provides the major gemological and spectroscopic features used to identify these lab-grown diamonds. The last few years have seen numerous advancements in synthetics: the rapid evolution in CVD technology, the ability to produce 10+ carat HPHT synthetics, and the proliferation of HPHT-grown colorless melee diamonds. The far left column of the chart focuses on features of melee-sized lab-grown diamonds (those less than 0.2 ct), while the far right column presents photos and photomicrographs of large (greater than 5 ct) faceted
期刊介绍：
G&G publishes original articles on gem materials and research in gemology and related fields. Manuscript topics include, but are not limited to:
Laboratory or field research;
Comprehensive reviews of important topics in the field;
Synthetics, imitations, and treatments;
Trade issues;
Recent discoveries or developments in gemology and related fields (e.g., new instruments or identification techniques, gem minerals for the collector, and lapidary techniques);
Descriptions of notable gem materials and localities;
Jewelry manufacturing arts, historical jewelry, and museum exhibits.
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