Ribbon: Deep pink.
Instituted: 16 November 1873 by King Chulalongkorn Rama V.
Awarded:To members of the House of Chakri (the Thai Royal Family) and members of foreign royal houses.
Grades: 7 (Grand Cordon, Knight or Dame Grand Cross, Knight or Dame Grand Commander, Knight or Dame Commander, Grand Companion, Companion and Junior Companion or Member).
| Grand Cordon: Collar |
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| Grand Cordon: Badge |
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| Grand Cordon: Star |
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| Grand Cross: Collar |
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| Grand Cross: Badge |
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| Grand Cross: Star |
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| Grand Commander: Badge |
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| Grand Commander: Star |
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| Commander |
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| Grand Companion |
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| Companion |
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| Junior Companion |
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| Member |
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