Seeing inside the stone

This article puts forth the notion of visual refraction to analyze the subjective and technical construction of grading certificates in the global diamond trade. Research was based on an ethnographic study of rough diamond grading and evaluation courses in gemological laboratories in Belgium and Ind...

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Main Authors: Matthieu Bolay, Filipe Calvão
Format: Article
Language:fra
Published: Société d'Anthropologie des Connaissances 2020-12-01
Series:Revue d'anthropologie des connaissances
Subjects:
Online Access:https://journals.openedition.org/rac/17116
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author Matthieu Bolay
Filipe Calvão
author_facet Matthieu Bolay
Filipe Calvão
author_sort Matthieu Bolay
collection DOAJ
description This article puts forth the notion of visual refraction to analyze the subjective and technical construction of grading certificates in the global diamond trade. Research was based on an ethnographic study of rough diamond grading and evaluation courses in gemological laboratories in Belgium and India, as well as interviews with novice and experienced evaluators (Belgium, United States, India, United Kingdom, and Switzerland). By "seeing in the stone" the learning of gestures and procedures meant to bring order to the imperfections of natural objects, we reveal the tensions between the aspirations of objectivity and the subjective visual practices that characterize the classificatory apparatus of the diamond industry. We suggest that the visual expertise learnt by graders consists notably of recognizing and valuing the fallibility of their own sensory assessments. This apparent paradox is constitutive of the certification system and aligns with the rhetoric of exceptionality upon which the diamond industry and its markets are built.
format Article
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issn 1760-5393
language fra
publishDate 2020-12-01
publisher Société d'Anthropologie des Connaissances
record_format Article
series Revue d'anthropologie des connaissances
spelling doaj-art-9381e13640d34b51b98e4ff288ef3b512025-08-20T03:08:39ZfraSociété d'Anthropologie des ConnaissancesRevue d'anthropologie des connaissances1760-53932020-12-0114310.4000/rac.17116Seeing inside the stoneMatthieu BolayFilipe CalvãoThis article puts forth the notion of visual refraction to analyze the subjective and technical construction of grading certificates in the global diamond trade. Research was based on an ethnographic study of rough diamond grading and evaluation courses in gemological laboratories in Belgium and India, as well as interviews with novice and experienced evaluators (Belgium, United States, India, United Kingdom, and Switzerland). By "seeing in the stone" the learning of gestures and procedures meant to bring order to the imperfections of natural objects, we reveal the tensions between the aspirations of objectivity and the subjective visual practices that characterize the classificatory apparatus of the diamond industry. We suggest that the visual expertise learnt by graders consists notably of recognizing and valuing the fallibility of their own sensory assessments. This apparent paradox is constitutive of the certification system and aligns with the rhetoric of exceptionality upon which the diamond industry and its markets are built.https://journals.openedition.org/rac/17116evaluationapprenticeshipanthropology of the sensesdiamondscertification
spellingShingle Matthieu Bolay
Filipe Calvão
Seeing inside the stone
Revue d'anthropologie des connaissances
evaluation
apprenticeship
anthropology of the senses
diamonds
certification
title Seeing inside the stone
title_full Seeing inside the stone
title_fullStr Seeing inside the stone
title_full_unstemmed Seeing inside the stone
title_short Seeing inside the stone
title_sort seeing inside the stone
topic evaluation
apprenticeship
anthropology of the senses
diamonds
certification
url https://journals.openedition.org/rac/17116
work_keys_str_mv AT matthieubolay seeinginsidethestone
AT filipecalvao seeinginsidethestone