Gemstone Enhancement and Its Detection in the 2000s

McClure, Shane F.; Kane, Robert E.; Sturman, Nicholas

doi:10.5741/gems.46.3.218

Cited by 16 publications

(14 citation statements)

References 63 publications

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“…They noted that MnCO 3 in the nucleus (bead) turned into oxidations such as Mn 3 O 4 , Mn 2 O 3 , and Mn 2 O after irradiation. Their results are still cited in literature related to color change in irradiated pearls (e.g., Komatsu, 1999;Wada, 1999;McClure, 2010).…”

Section: Resultsmentioning

confidence: 92%

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Natural Pearls from Australian <i>Pinctada Maxima</i>

Scarratt¹,

Bracher²,

Bracher³

et al. 2012

Gems & Gemology

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Section: Resultsmentioning

confidence: 92%

“…I rradiation, dyeing, bleaching, and heat treatment are widely used methods to alter pearl color. Although most artificial colors are easily recognized, some resemble attractive colors that occur in nature Li and Chen, 2001;Zachovay, 2005;Wang et al, 2006;"Better techniques improve brown pearls," 2006;McClure et al, 2010).…”

Section: Discussionmentioning

confidence: 99%

Natural Pearls from Australian <i>Pinctada Maxima</i>

Scarratt¹,

Bracher²,

Bracher³

et al. 2012

Gems & Gemology

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“…[165] The fight between new treatments and their detection requires a continuous research and use of updated technique. In a recent overview, [166] the use of Raman spectroscopy is reported for the detection of treatments in heated black diamonds, [167] impregnated turquoise, [168] chalcedony simulating opals [169] and spinel. In fact, heat treatments in spinels can be detected by Raman spectroscopy, measuring the width of the band at 405 cm À1 .…”

Section: Treatmentsmentioning

confidence: 99%

Raman spectroscopy of minerals and mineral pigments in archaeometry

Bersani

Lottici

2016

J Raman Spectroscopy

138

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Minerals, as raw structural materials or pigments, play a fundamental role in archaeometry, for the understanding of nature, structure and status of an artefact or object of interest for cultural heritage. A detailed knowledge of the mineral phases is crucial to solve archaeological problems: Raman spectroscopy is a powerful investigation technique and has been applied extensively in the last 30 years on mineral identification and on pigment degradation. Here we report an updated review, covering the last decade, of the applications of Raman techniques to issues in which raw minerals, including mineral pigments, are involved. Particular attention is devoted to cases where the Raman analysis of minerals is deeper than a simple identification of the phases present in an archaeological or artistic object. Copyright © 2016 John Wiley & Sons, Ltd.

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“…Despite the GIA's recognition of lab-grown diamonds, industry opinions about them remain divided (Sidell, 2019). Thus, disclosure of synthetic diamonds and synthetically-enhanced natural diamonds (i.e., natural diamonds treated for better colour or clarity by HPHT or CVD processes), is considered important (McClure, Kane, & Sturman, 2010;Sherman, 2014 Reavis, 2008). Whereas lab-growing manufacturers prefer terms such as "cultured" or "manmade" and disavow the term "synthetic" for its "fake" connotation, traditionalists prefer the latter for the same reason (O'Connell, 2007).…”

Section: The Need To Differentiate Lab-grown Diamondsmentioning

confidence: 99%

Elevating the Lab Grown Diamond: A Critical Review of the Contemporary Jewellery Industry

Memme¹

2023

Preprint

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DeBeers' iconic 1938 “A Diamond Is Forever” campaign associated diamonds with everlasting love and singlehandedly constructed the value of, and public demand for, these gemstones (Epstein, 1982). This event is known as the “diamond invention” (Epstein, 1982). However, the purity of natural diamonds was challenged in the 1990s because of rising concern about blood diamonds (Siegel, 2009). In the same era, gem-quality lab-grown diamonds entered the market though they remained largely unknown (Kitawaki, Abduriyim, Kawano, & Okano, 2010). Recently, awareness of synthetics has increased given millennial values (IGDA, 2019). Today more jewellery companies have adopted lab-grown diamonds, many of which maintain the romantic associations from the diamond invention despite changes in social values over the last eighty-one years. The industry requires differentiation of natural and lab-grown diamond sectors for several reasons including to uphold diamond value (e.g. Sherman, 2014; Siegel, 2009a; Whiteley, 2016). Not much scholarship exists on the current state of the lab-grown diamond industry. Thus, this study delves into the debate between both sectors to devise a strategy for lab- grown diamonds, considering the current social climate.

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Gemstone Enhancement and Its Detection in the 2000s

Cited by 16 publications

References 63 publications

Natural Pearls from Australian <i>Pinctada Maxima</i>

Natural Pearls from Australian <i>Pinctada Maxima</i>

Raman spectroscopy of minerals and mineral pigments in archaeometry

Elevating the Lab Grown Diamond: A Critical Review of the Contemporary Jewellery Industry

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