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GB201802965D0 - UV transparency of gemstones - Google Patents

UV transparency of gemstones

Info

Publication number
GB201802965D0
GB201802965D0 GBGB1802965.2A GB201802965A GB201802965D0 GB 201802965 D0 GB201802965 D0 GB 201802965D0 GB 201802965 A GB201802965 A GB 201802965A GB 201802965 D0 GB201802965 D0 GB 201802965D0
Authority
GB
United Kingdom
Prior art keywords
gemstones
transparency
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
GBGB1802965.2A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
De Beers UK Ltd
Original Assignee
De Beers UK Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by De Beers UK Ltd filed Critical De Beers UK Ltd
Priority to GBGB1802965.2A priority Critical patent/GB201802965D0/en
Publication of GB201802965D0 publication Critical patent/GB201802965D0/en
Priority to PCT/GB2019/050468 priority patent/WO2019162666A1/en
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/87—Investigating jewels

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
GBGB1802965.2A 2018-02-23 2018-02-23 UV transparency of gemstones Ceased GB201802965D0 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GBGB1802965.2A GB201802965D0 (en) 2018-02-23 2018-02-23 UV transparency of gemstones
PCT/GB2019/050468 WO2019162666A1 (en) 2018-02-23 2019-02-20 Uv transparency of gemstones

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB1802965.2A GB201802965D0 (en) 2018-02-23 2018-02-23 UV transparency of gemstones

Publications (1)

Publication Number Publication Date
GB201802965D0 true GB201802965D0 (en) 2018-04-11

Family

ID=61903150

Family Applications (1)

Application Number Title Priority Date Filing Date
GBGB1802965.2A Ceased GB201802965D0 (en) 2018-02-23 2018-02-23 UV transparency of gemstones

Country Status (2)

Country Link
GB (1) GB201802965D0 (en)
WO (1) WO2019162666A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7530426B2 (en) 2019-11-26 2024-08-07 ジェモロジカル インスティテュート オブ アメリカ インコーポレイテッド（ジーアイエー） Fluorescence imaging of gemstones on a transparent stage
GB202020049D0 (en) * 2020-12-17 2021-02-03 Swarovski D Kg Method and apparatus for inspecting a gemstone

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU676274B2 (en) * 1993-03-05 1997-03-06 Gersan Establishment Distinguishing natural from synthetic diamond
GB2286251B (en) * 1994-01-25 1997-07-09 Gersan Ets Examining a diamond for synthetic diamond

Also Published As

Publication number Publication date
WO2019162666A1 (en) 2019-08-29

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Legal Events

Date Code Title Description
AT Applications terminated before publication under section 16(1)