Koh-i-Noor diamond
E267362
The Koh-i-Noor diamond is a historically famous and controversial large colorless diamond of Indian origin that has passed through various royal hands and now resides in the British royal regalia.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Koh-i-Noor diamond canonical | 7 |
| Koh-i-Noor diamond taken by Nader Shah | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2387032 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Koh-i-Noor diamond Context triple: [Crown Jewels of the United Kingdom, containsGem, Koh-i-Noor diamond]
-
A.
Hope Diamond
The Hope Diamond is a famous deep-blue, 45.52-carat diamond renowned for its size, rare color, storied history, and legends of a curse.
-
B.
Regent Diamond
The Regent Diamond is a famed 140.64-carat Indian diamond renowned for its exceptional clarity and long association with French royalty and the French Crown Jewels.
-
C.
Cullinan I
Cullinan I, also known as the Great Star of Africa, is the largest clear-cut diamond in the world and a prominent jewel in the British Crown Jewels.
-
D.
Cullinan II
Cullinan II is a large, cushion-cut diamond from the famed Cullinan diamond, prominently set in the British Imperial State Crown as one of its principal stones.
-
E.
Diamond
Diamond is a precious crystalline form of carbon renowned for its exceptional hardness, brilliance, and use in jewelry and industrial applications.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Koh-i-Noor diamond Target entity description: The Koh-i-Noor diamond is a historically famous and controversial large colorless diamond of Indian origin that has passed through various royal hands and now resides in the British royal regalia.
-
A.
Hope Diamond
The Hope Diamond is a famous deep-blue, 45.52-carat diamond renowned for its size, rare color, storied history, and legends of a curse.
-
B.
Regent Diamond
The Regent Diamond is a famed 140.64-carat Indian diamond renowned for its exceptional clarity and long association with French royalty and the French Crown Jewels.
-
C.
Cullinan I
Cullinan I, also known as the Great Star of Africa, is the largest clear-cut diamond in the world and a prominent jewel in the British Crown Jewels.
-
D.
Cullinan II
Cullinan II is a large, cushion-cut diamond from the famed Cullinan diamond, prominently set in the British Imperial State Crown as one of its principal stones.
-
E.
Diamond
Diamond is a precious crystalline form of carbon renowned for its exceptional hardness, brilliance, and use in jewelry and industrial applications.
- F. None of above. chosen
Statements (77)
| Predicate | Object |
|---|---|
| instanceOf |
British Crown Jewel
ⓘ
colorless diamond ⓘ crown jewel ⓘ cut diamond ⓘ diamond ⓘ historical artifact ⓘ |
| acquiredBy | British East India Company ⓘ |
| associatedWith |
Afghan Durrani Empire
ⓘ
linked to:
Durrani Empire
Mughal Empire ⓘ
linked to:
Mughal Empire (in much of the territory)
Persian Empire ⓘ
linked to:
Persia
Sikh Empire ⓘ |
| associatedWithMonarch |
King Edward VII
ⓘ
linked to:
Edward VII
King George V ⓘ
linked to:
George V
King George VI ⓘ
linked to:
George VI
Queen Elizabeth II ⓘ
linked to:
Elizabeth II
Queen Victoria ⓘ |
| clarity | high clarity ⓘ |
| color | colorless ⓘ |
| countryOfOrigin | India ⓘ |
| culturalSignificance | major symbol in debates over colonial-era artifacts ⓘ |
| currentCollection |
British Crown Jewels
ⓘ
linked to:
Crown Jewels of the United Kingdom
|
| currentLocation | Tower of London ⓘ |
| currentOwner |
British Crown
ⓘ
monarch of the United Kingdom ⓘ |
| cut | oval brilliant cut ⓘ |
| cutType | brilliant cut ⓘ |
| displayContext |
Jewel House, Tower of London
ⓘ
linked to:
Jewel House
|
| displayedAt | Great Exhibition of 1851 ⓘ |
| displayedInCity |
London
ⓘ
linked to:
London, England
|
| eraOfArrivalInBritain | mid-19th century ⓘ |
| famousFor | being one of the most famous diamonds in the world ⓘ |
| formerOwner |
Ahmad Shah Durrani
ⓘ
Company rule in India ⓘ Maharaja Duleep Singh ⓘ
linked to:
Duleep Singh
Maharaja Ranjit Singh ⓘ Mughal emperors ⓘ
linked to:
Mughal Emperor
Nader Shah ⓘ Shah Shuja Durrani ⓘ
linked to:
Shuja Shah Durrani
|
| hardnessScale | 10 on Mohs scale ⓘ |
| knownFor |
association with British Crown Jewels
ⓘ
controversial ownership ⓘ historical significance ⓘ size ⓘ |
| languageOfName | Persian ⓘ |
| legalStatus | property of the British Crown in UK law ⓘ |
| material | diamond ⓘ |
| meaningOfName | Mountain of Light ⓘ |
| mountedIn |
Crown of Queen Elizabeth The Queen Mother
ⓘ
linked to:
Imperial State Crown
|
| originalMineRegion |
Golconda mines
ⓘ
linked to:
Golconda
|
| partOf |
British royal regalia
ⓘ
linked to:
Crown Jewels of the United Kingdom
|
| placeOfOrigin |
Andhra Pradesh
ⓘ
Deccan Plateau ⓘ Golconda region ⓘ
linked to:
Golconda
|
| politicalStatus | disputed cultural property ⓘ |
| presentedBy |
East India Company
ⓘ
linked to:
British East India Company
|
| presentedOnBehalfOf |
Maharaja Duleep Singh
ⓘ
linked to:
Duleep Singh
|
| presentedTo | Queen Victoria ⓘ |
| previouslyMountedIn |
Crown of Queen Alexandra
ⓘ
linked to:
Queen Consort's Crown
Crown of Queen Mary ⓘ
linked to:
Queen Consort's Crown
Crown of Queen Victoria ⓘ
linked to:
Imperial State Crown
|
| recutBy | Dutch cutters ⓘ |
| recutIn |
London
ⓘ
linked to:
London, England
|
| recutUnder |
Prince Albert
ⓘ
linked to:
Prince Albert of Saxe-Coburg and Gotha
|
| securityLevel | high-security museum object ⓘ |
| subjectOf |
restitution claims by Afghanistan
ⓘ
restitution claims by India ⓘ restitution claims by Iran ⓘ restitution claims by Pakistan ⓘ |
| symbolizes |
British imperial power
ⓘ
colonial exploitation (in some narratives) ⓘ royal prestige ⓘ |
| transferredTo | Queen Victoria ⓘ |
| transportedBy | ship HMS Medea ⓘ |
| transportedTo | United Kingdom ⓘ |
| weight | 105.6 carats ⓘ |
| weightAfterRecut | 105.6 carats ⓘ |
| weightBeforeRecut | 186 carats (approximate) ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Koh-i-Noor diamond Description of subject: The Koh-i-Noor diamond is a historically famous and controversial large colorless diamond of Indian origin that has passed through various royal hands and now resides in the British royal regalia.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Koh-i-Noor diamond