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Star of Bombay

182-carat cabochon-cut star sapphire from Sri Lanka

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Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionJan 22, 2026
Entity authorityQ7601236 ↗
Source-derived summary

The Star of Bombay is a 182-carat (36.4-g) cabochon-cut star sapphire originating in Sri Lanka. The violet-blue gem was given to silent film actress Mary Pickford by her husband, Douglas Fairbanks. She bequeathed it to the Smithsonian Institution. It is the namesake of the popular alcoholic beverage Bombay Sapphire, a British-manufactured gin.

Description

The Star of Bombay is a 182 carat (36.4-g) cabochon-cut star sapphire. According to Southern Jewelry News, "The Star of Bombay sapphire belongs to the mineral species corundum. Pure corundum is colorless, but trace amounts of transition elements like vanadium or chromium result in different colors in the crystal. The Star of Bombay’s violet-blue color is caused by the presence of titanium and iron giving the blue tint, and vanadium contributing to its violet back color."

History

The Star of Bombay originates from Sri Lanka and is one of the largest star sapphires which have names unrelated to their origin, the other being the Star of India.

It is the namesake of the popular alcoholic beverage Bombay Sapphire, a British-manufactured gin. The gem was first acquired by Trabert & Hoeffer Inc.

Editorial summary

This brief starts where responsible research should: with the source description of “Star of Bombay” as 182-carat cabochon-cut star sapphire from Sri Lanka. Everything that follows is an evidence route, not borrowed authority.

Editorial reviewA dependable orientation record for establishing vocabulary, names and a first evidence trail. The current 184-word lead offers orientation but no explicit four-digit date, so chronology should not be assumed. The selected authority fields contribute no independent date. The account is most persuasive where Star, Bombay and 182-carat can be independently traced.
Editorial analysis

Why this record matters

The subject matters to the general reference register because the source frames it as 182-carat cabochon-cut star sapphire from Sri Lanka. Its deeper value depends on whether names, dates, institutions and citations support that framing.

Evidence profile

Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Jan 22, 2026. The linked authority identifier is Q7601236. None of the 0 selected statements returned an explicit reference.

Critical limits

The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.

Best used for
  • Subject orientation
  • Search vocabulary
  • Locating named sources
Verify next

The closest primary source, responsible institution and strongest cited specialist reference.

Three-step research path

  1. Establish the record: confirm the title “Star of Bombay”, its source revision and the description used here.
  2. Expand the search: follow Star of Bombay primary sources, Star of Bombay archive and Star research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “Star of Bombay”?
  2. Which cited source is closest to the event, object or claim?
  3. What terminology or title could unlock a more precise catalogue search?
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Source & attribution

This entry incorporates text from “Star of Bombay” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.