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Alexandrite

Tsarstone collectors guide


Karat

Karat
In metallurgy a unit that expresses only to the purity of solid gold used in jewelry. In trade based on a scale of twenty-fourths, 24 karat means pure gold, 18 karat gold means, containing 18 parts gold to 6 parts of alloy, and 9 karat gold means, containing 9 parts of gold to 15 parts of alloy. A term that expresses only to the purity of solid gold used in jewelry. In some countries, the proportion is expressed as part per thousand: 24 Karat gold is equal 1000 parts, 18 Karat gold 750.
Bibliographic details
Page title Definition of Karat
Author David Weinberg
Website title Alexandrite Tsarstone Collectors Guide
Date published 03 July 2010 04:44 UTC
Date accessed 09 April 2026 12:41 UTC
Permanent link http://w.alexandrite.net/viewpage.html?id=GG-096-00002
AMA style
David Weinberg. "Definition of Karat". In Alexandrite Tsarstone Collectors Guide. July 03, 2010, 04:44 UTC. Available at: http://w.alexandrite.net/viewpage.html?id=GG-096-00002. Accessed April 09, 2026.
APA style
"Definition of Karat". (2010, July 03). In Alexandrite Tsarstone Collectors Guide. Retrieved 12:41, April 09, 2026, from http://w.alexandrite.net/viewpage.html?id=GG-096-00002.
Bluebook style
"Definition of Karat", http://w.alexandrite.net/viewpage.html?id=GG-096-00002 (last visited April 09, 2026).
Bluebook: Harvard JOLT style
See Alexandrite Tsarstone Collectors Guide, "Definition of Karat", http://w.alexandrite.net/viewpage.html?id=GG-096-00002 (In metallurgy a unit that expresses only to the purity of solid gold used in jewelry. In trade based on a scale of twenty-fourths, 24 karat means pure gold, 18 karat gold means, containing 18 parts gold to 6 parts of alloy, and 9 karat gold means, containing 9 parts of gold to 15 parts of alloy. A term that expresses only to the purity of solid gold used in jewelry. In some countries, the proportion is expressed as part per thousand: 24 Karat gold is equal 1000 parts, 18 Karat gold 750.) (as of Apr. 09, 2026, 12:41 GMT).
CBE/CSE style
David Weinberg. "Definition of Karat". In Alexandrite Tsarstone Collectors Guide. 2010 Jul 03, 04:44 UTC.[Internet], Alexandrite Tsarstone Collectors Guide; 2010 Jul 03, 04:44 UTC [cited 2026 Apr 09]. Available from: http://w.alexandrite.net/viewpage.html?id=GG-096-00002.
Chicago style
David Weinberg, "Definition of Karat", http://w.alexandrite.net/viewpage.html?id=GG-096-00002, (accessed April 09, 2026).
MLA style
"Definition of Karat". Alexandrite Tsarstone Collectors Guide. 03 Jul 2010, 04:44 UTC. 09 Apr 2026 http://w.alexandrite.net/viewpage.html?id=GG-096-00002
MHRA style
David Weinberg, "Definition of Karat", Alexandrite Tsarstone Collectors Guide, 03 July 2010, 04:44 UTC, http://w.alexandrite.net/viewpage.html?id=GG-096-00002 [accessed 09 April 2026].
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