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 |
Durrani Empire
ⓘ
surface form:
Afghan Durrani Empire
Mughal Empire (in much of the territory) ⓘ
surface form:
Mughal Empire
Persia ⓘ
surface form:
Persian Empire
Sikh Empire ⓘ |
| associatedWithMonarch |
Edward VII
ⓘ
surface form:
King Edward VII
George V ⓘ
surface form:
King George V
George VI ⓘ
surface form:
King George VI
Elizabeth II ⓘ
surface form:
Queen Elizabeth II
Queen Victoria ⓘ |
| clarity | high clarity ⓘ |
| color | colorless ⓘ |
| countryOfOrigin | India ⓘ |
| culturalSignificance | major symbol in debates over colonial-era artifacts ⓘ |
| currentCollection |
Crown Jewels of the United Kingdom
ⓘ
surface form:
British Crown Jewels
|
| currentLocation | Tower of London ⓘ |
| currentOwner |
British Crown
ⓘ
monarch of the United Kingdom ⓘ |
| cut | oval brilliant cut ⓘ |
| cutType | brilliant cut ⓘ |
| displayContext |
Jewel House
ⓘ
surface form:
Jewel House, Tower of London
|
| displayedAt | Great Exhibition of 1851 ⓘ |
| displayedInCity |
London, England
ⓘ
surface form:
London
|
| eraOfArrivalInBritain | mid-19th century ⓘ |
| famousFor | being one of the most famous diamonds in the world ⓘ |
| formerOwner |
Ahmad Shah Durrani
ⓘ
Company rule in India ⓘ Duleep Singh ⓘ
surface form:
Maharaja Duleep Singh
Maharaja Ranjit Singh ⓘ Mughal Emperor ⓘ
surface form:
Mughal emperors
Nader Shah ⓘ Shuja Shah Durrani ⓘ
surface form:
Shah Shuja 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 |
Imperial State Crown
ⓘ
surface form:
Crown of Queen Elizabeth The Queen Mother
|
| originalMineRegion |
Golconda
ⓘ
surface form:
Golconda mines
|
| partOf |
Crown Jewels of the United Kingdom
ⓘ
surface form:
British royal regalia
|
| placeOfOrigin |
Andhra Pradesh
ⓘ
Deccan Plateau ⓘ Golconda ⓘ
surface form:
Golconda region
|
| politicalStatus | disputed cultural property ⓘ |
| presentedBy |
British East India Company
ⓘ
surface form:
East India Company
|
| presentedOnBehalfOf |
Duleep Singh
ⓘ
surface form:
Maharaja Duleep Singh
|
| presentedTo | Queen Victoria ⓘ |
| previouslyMountedIn |
Queen Consort's Crown
ⓘ
surface form:
Crown of Queen Alexandra
Queen Consort's Crown ⓘ
surface form:
Crown of Queen Mary
Imperial State Crown ⓘ
surface form:
Crown of Queen Victoria
|
| recutBy | Dutch cutters ⓘ |
| recutIn |
London, England
ⓘ
surface form:
London
|
| recutUnder |
Prince Albert of Saxe-Coburg and Gotha
ⓘ
surface form:
Prince Albert
|
| 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.
this entity surface form:
Koh-i-Noor diamond taken by Nader Shah