T/GDSHJXH 002-2021 Active Group standards

T/GDSHJXH 002-2021, Identification and Grading of Moissanite

T/GDSHJXH 002-2021

Publish Date: 2021-06-08 Implement Date: 2021-06-09 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/GDSHJXH 002-2021

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: Jewelry

Publish Date: 2021-06-08

Implement Date: 2021-06-09

Scope

Scope: This standard specifies the terms and definitions, identification characteristics, grading rules, marking, and Moissanite grading certificates for standard round unmounted and mounted polished Moissanites. The color grading in this standard applies to unmounted and mounted polished Moissanites in the color range from colorless to light yellow (brown, gray). The cut grading in this standard applies to unmounted polished Moissanites with a standard round cut. The grading rules in this standard apply to unmounted and mounted polished Moissanites with a diameter of 5.0mm (inclusive) to 11.0mm (inclusive). For other sizes, please refer to this standard. For polished Moissanites that are not in the color range from colorless to light yellow (brown, gray), their clarity grading can be referenced from this standard. For unmounted polished Moissanites with a standard round cut, their clarity grading can be referenced from this standard. For unmounted and mounted polished Moissanites with non-standard round cuts, their color and clarity grading can be referenced from this standard. Main Technical Content: 1. Scope 2. Normative References 3. Terms and Definitions 4. Basic Properties and Identification Characteristics 5. Grading Requirements 6. Grading Rules 7. Marking 8. Moissanite Identification and Grading Certificates or Reports