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GB/T 44913-2024: Filled monocrystal gemstones - Identification and classification
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| GB/T 44913-2024 | English | 359 |
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Filled monocrystal gemstones - Identification and classification
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GB/T 44913-2024
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Basic data | Standard ID | GB/T 44913-2024 (GB/T44913-2024) | | Description (Translated English) | Filled monocrystal gemstones - Identification and classification | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | D59 | | Classification of International Standard | 39.060 | | Word Count Estimation | 18,143 | | Date of Issue | 2024-11-28 | | Date of Implementation | 2025-06-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 44913-2024: Filled monocrystal gemstones - Identification and classification---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
National Standard of the People's Republic of China
ICS 39.060CCS D 59
Identification and classification of filled and treated single crystal gemstones
2024-11-28 Release
2025-06-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
Table of Contents
Preface Ⅲ
1 Scope...1
2 Normative references ...1
3 Terms and Definitions 1
4 Identification 1
5 Classification requirements 3
6 Categories...3
7 Naming and Expression Methods 4
8 Filled and treated single crystal gem identification certificate...5
Appendix A (Informative) Example of infrared spectrum of single crystal gemstones with filling treatment ...7
Appendix B (Informative) Examples of Raman spectra of different types of fillings 10
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents"
Drafting is required.
Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document is proposed by the Ministry of Natural Resources of the People's Republic of China.
This document is under the jurisdiction of the National Technical Committee on Standardization of Jewellery and Gemstones (SAC/TC 298).
This document was drafted by. Sichuan Product Quality Supervision, Inspection and Testing Institute, Chengdu Product Quality Inspection Institute Co., Ltd., National
Jewelry and Jade Inspection Group Co., Ltd., Guangdong Jewelry and Jade and Precious Metals Testing Center, Shandong Institute of Metrology, Shenzhen
Xingguangda Jewelry Industrial Co., Ltd. and Jiangsu Gold Jewelry Testing Center Co., Ltd.
The main drafters of this document are. Dai Sulan, Qu Wei, Zhang Jun, Xia Yumei, Xu Su, Chen Hongxia, Chen Dapeng, Luo Qinfeng, Xiong Yan, Wang Yimeng,
Su Jun, Li Haibo, Cheng Youfa, Li Jianjun, Lin Changwei, Zhu Demao, Liao Jun, Wang Shujie, Wang Ling, Zhao Xin.
Identification and classification of filled and treated single crystal gemstones
1 Scope
This document specifies the identification, classification requirements, classification, naming and representation methods of filled and treated single crystal gemstones,
Stone identification certificate.
This document applies to the identification, classification and labeling of filled and processed single crystal gemstone materials and products.
2 Normative references
The contents of the following documents constitute the essential clauses of this document through normative references in this document.
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document.
GB 11887 Regulations and naming methods for purity of precious metals in jewelry
GB/T 16552 Names of Jewellery and Jade
GB/T 16553 Jewelry and Jade Identification
GB/T 31912 Jewelry Marking
GB/T 33541 Criteria for determining acceptance of sampling inspection of jewellery, jade and precious metal products
3 Terms and definitions
The terms and definitions defined in GB/T 16552, GB/T 16553, GB/T 31912 and GB/T 33541 and the following terms and definitions apply to this
document.
3.1
monocrystal gemstones
Produced by nature, it is beautiful, durable, rare, and can be processed into mineral single crystals (may contain twin crystals) for jewelry.
3.2
Filling
Use colorless to nearly colorless oil, wax, resin, glass and other materials to fill the gaps, (open) cracks, and cavities of jewelry and jade, or to inject porous,
A fractured gemstone that has been artificially treated to improve or change its clarity, appearance, and durability.
[Source. GB/T 16552-2017, 3.4.6, modified]
3.3
filled monocrystal gemstones
A single crystal gemstone that has been artificially filled and has fillings in its cracks, cavities, and defects.
4 Identification
4.1 Identification Process
4.1.1 The species identification of single crystal gemstones shall be carried out in accordance with GB/T 16553.
4.1.2 The identification of filled single crystal gemstones shall be carried out in accordance with 4.2.
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