CAJ | 학술논문

2012年以来,国家珠宝玉石质量监督检验中心（NGTC）先后在送检的裸石和镶嵌钻石饰品中遇到未经揭示的CVD合成钻石。为了更好地了解这些新出现的CVD合成钻石的特征,NGTC实验室对接受送检中发现的所有未经揭示的样品进行了详细的分析测试。测试结果表明,这些合成钻石均呈近无色的Ⅱa型,光致发光光谱（Photoluminescence）中可见737nm发光线,钻石观测仪（DiamondViewTM）下可见蓝绿色荧光、蓝色磷光以及CVD合成钻石典型的层状生长纹理特征。因此,仅用常规的鉴定方法很难将CVD合成钻石与天然钻石区分,但结合光致发光光谱特征和钻石观测仪荧光图像特征,可以准确地鉴定这类CVD合成钻石。
2012년이래,국가주보옥석질량감독검험중심（NGTC）선후재송검적라석화양감찬석식품중우도미경게시적CVD합성찬석。위료경호지료해저사신출현적CVD합성찬석적특정,NGTC실험실대접수송검중발현적소유미경게시적양품진행료상세적분석측시。측시결과표명,저사합성찬석균정근무색적Ⅱa형,광치발광광보（Photoluminescence）중가견737nm발광선,찬석관측의（DiamondViewTM）하가견람록색형광、람색린광이급CVD합성찬석전형적층상생장문리특정。인차,부용상규적감정방법흔난장CVD합성찬석여천연찬석구분,단결합광치발광광보특정화찬석관측의형광도상특정,가이준학지감정저류CVD합성찬석。
Early in 2012, NGTC labs in Shenzhen and Beijing investigated some naked and embedded diamonds which included some undisclosed CVD synthetic diamonds. It was found that these gem-quality CVD synthetic diamonds are difficult to distinguish from natural diamonds by normal micro-scopic observation. However, they can be effectively identified with the help of some advanced ana-lytical techniques, such as PL(Photolumineseence) and DiamondView^TM. The experiments show that the line at 737 nm in the PL spectrum and the bluish green fluorescence, the blue phosphores-cence together with characteristics of multi-layered structure in DamondViewTM are the characteris-tics of these CVD synthetic diamonds.