Diamond
E39591
Diamond is a precious crystalline form of carbon renowned for its exceptional hardness, brilliance, and use in jewelry and industrial applications.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Diamond canonical | 12 |
How this entity was disambiguated
This entity first appeared as the object of triple T307820 — 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: Diamond Context triple: [Jared Diamond, familyName, Diamond]
-
A.
Gold
Gold was the codename for one of the five Allied landing beaches used by British forces during the D-Day invasion of Normandy in World War II.
-
B.
“Diamonds”
“Diamonds” is the third, grand and classical movement of George Balanchine’s full-length ballet *Jewels*, often performed as a standalone work by major ballet companies.
-
C.
Quartz
Quartz is a digital news outlet known for its global business journalism, data-driven reporting, and mobile-first storytelling.
-
D.
Blue Nile
The Blue Nile is a major river in northeastern Africa that flows from Ethiopia into Sudan, forming a principal tributary of the Nile and playing a crucial role in the region’s agriculture and hydroelectric power.
-
E.
Silver
Silver is a lustrous, highly conductive precious metal widely used in jewelry, industry, and currency throughout history.
- 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: Diamond Target entity description: Diamond is a precious crystalline form of carbon renowned for its exceptional hardness, brilliance, and use in jewelry and industrial applications.
-
A.
Gold
Gold was the codename for one of the five Allied landing beaches used by British forces during the D-Day invasion of Normandy in World War II.
-
B.
“Diamonds”
“Diamonds” is the third, grand and classical movement of George Balanchine’s full-length ballet *Jewels*, often performed as a standalone work by major ballet companies.
-
C.
Quartz
Quartz is a digital news outlet known for its global business journalism, data-driven reporting, and mobile-first storytelling.
-
D.
Blue Nile
The Blue Nile is a major river in northeastern Africa that flows from Ethiopia into Sudan, forming a principal tributary of the Nile and playing a crucial role in the region’s agriculture and hydroelectric power.
-
E.
Silver
Silver is a lustrous, highly conductive precious metal widely used in jewelry, industry, and currency throughout history.
- F. None of above. chosen
Statements (60)
| Predicate | Object |
|---|---|
| instanceOf |
allotrope of carbon
ⓘ
crystal ⓘ gemstone ⓘ mineral ⓘ |
| atomicStructure | each carbon atom is tetrahedrally bonded to four other carbon atoms ⓘ |
| birthstoneFor | April ⓘ |
| bondingType | covalent ⓘ |
| chemicalFormula | C ⓘ |
| cleavage | perfect in four directions ⓘ |
| color |
can be black
ⓘ
can be blue ⓘ can be brown ⓘ can be green ⓘ can be pink ⓘ can be yellow ⓘ typically colorless ⓘ |
| crystalClass | hexoctahedral ⓘ |
| crystalHabit |
cubic crystals
ⓘ
dodecahedral crystals ⓘ octahedral crystals ⓘ |
| crystalSystem | cubic ⓘ |
| density | about 3.5 g/cm³ ⓘ |
| dispersion | about 0.044 ⓘ |
| electricalConductivity | generally electrical insulator ⓘ |
| formationDepth | typically 140–190 km below Earth’s surface ⓘ |
| formationEnvironment | high pressure and high temperature in Earth’s mantle ⓘ |
| fracture | conchoidal ⓘ |
| hardnessMohs | 10 ⓘ |
| hardnessMohsScale | hardest natural material ⓘ |
| luster | adamantine ⓘ |
| majorProducerCountry |
Australia
ⓘ
Botswana ⓘ Canada ⓘ Democratic Republic of the Congo ⓘ Russia ⓘ South Africa ⓘ |
| occursIn |
kimberlite pipes
ⓘ
lamproite pipes ⓘ |
| opticalEffect |
fire
ⓘ
high brilliance ⓘ scintillation ⓘ |
| opticalProperty | isotropic ⓘ |
| refractiveIndex | about 2.42 ⓘ |
| relatedAllotrope |
fullerene
ⓘ
graphene ⓘ graphite ⓘ |
| symbolism | associated with durability and eternal love ⓘ |
| syntheticProductionMethod |
chemical vapor deposition
ⓘ
high‑pressure high‑temperature process ⓘ |
| tenacity | brittle ⓘ |
| thermalConductivity | very high thermal conductivity ⓘ |
| tradeClassification | precious stone ⓘ |
| transportToSurface | brought to surface by volcanic eruptions ⓘ |
| usedFor |
abrasives
ⓘ
cutting tools ⓘ drilling bits ⓘ grinding and polishing ⓘ heat spreaders in electronics ⓘ high‑performance optical components ⓘ jewelry ⓘ |
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: Diamond Description of subject: Diamond is a precious crystalline form of carbon renowned for its exceptional hardness, brilliance, and use in jewelry and industrial applications.
Referenced by (12)
Full triples — surface form annotated when it differs from this entity's canonical label.