ZA957081B - Distinguishing natural from synthetic diamond. - Google Patents
Distinguishing natural from synthetic diamond.Info
- Publication number
- ZA957081B ZA957081B ZA9507081A ZA957081A ZA957081B ZA 957081 B ZA957081 B ZA 957081B ZA 9507081 A ZA9507081 A ZA 9507081A ZA 957081 A ZA957081 A ZA 957081A ZA 957081 B ZA957081 B ZA 957081B
- Authority
- ZA
- South Africa
- Prior art keywords
- synthetic diamond
- distinguishing natural
- distinguishing
- natural
- diamond
- Prior art date
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
- Immunology (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Biochemistry (AREA)
- Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Pathology (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Carbon And Carbon Compounds (AREA)
- Dental Preparations (AREA)
- Adornments (AREA)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9417665A GB9417665D0 (en) | 1994-09-02 | 1994-09-02 | Distinguishing natural from synthetic diamond |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA957081B true ZA957081B (en) | 1997-11-24 |
Family
ID=10760731
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA9507081A ZA957081B (en) | 1994-09-02 | 1995-08-23 | Distinguishing natural from synthetic diamond. |
Country Status (11)
Country | Link |
---|---|
US (1) | US5801819A (ko) |
EP (1) | EP0778940A1 (ko) |
JP (1) | JPH10505159A (ko) |
KR (1) | KR970705749A (ko) |
AU (1) | AU686442B2 (ko) |
CA (1) | CA2198842A1 (ko) |
GB (1) | GB9417665D0 (ko) |
IL (1) | IL115077A (ko) |
TW (1) | TW343278B (ko) |
WO (1) | WO1996007894A1 (ko) |
ZA (1) | ZA957081B (ko) |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5966673A (en) | 1997-01-10 | 1999-10-12 | Diamond Technologies, Inc. | System and method for computerized evaluation of gemstones |
GB9727362D0 (en) * | 1997-12-24 | 1998-02-25 | Gersan Ets | Examining diamonds |
US6265884B1 (en) | 1998-05-13 | 2001-07-24 | Ceres Corporation | Electrical conductivity gem tester |
US6608670B2 (en) | 1999-03-16 | 2003-08-19 | Wizard Of Ink & Co. | Laser verification and authentication raman spectrometer (LVARS) detecting the stokes and/or anti-stokes emission |
US6377340B1 (en) * | 1999-10-29 | 2002-04-23 | General Electric Company | Method of detection of natural diamonds that have been processed at high pressure and high temperatures |
US6473164B1 (en) | 2000-02-16 | 2002-10-29 | Gemological Institute Of America, Inc. | Systems, apparatuses and methods for diamond color measurement and analysis |
GB0017639D0 (en) * | 2000-07-18 | 2000-09-06 | Gersan Ets | Instrument for examining a gemstone |
US7260544B1 (en) | 2000-10-12 | 2007-08-21 | Gemological Institute Of America, Inc. | System and methods for evaluating the appearance of a gemstone |
US6786733B2 (en) | 2002-10-15 | 2004-09-07 | Overseas Diamonds Inc. | Computer-implemented method of and system for teaching an untrained observer to evaluate a gemstone |
US7102742B2 (en) * | 2004-01-12 | 2006-09-05 | Gemological Institute Of America, Inc. | Fluorescence measuring device for gemstones |
US7362109B2 (en) * | 2004-10-18 | 2008-04-22 | Boris Zolotar Loginov | Gem tester using electrical photoconductivity |
US9262284B2 (en) * | 2006-12-07 | 2016-02-16 | Lenovo Enterprise Solutions (Singapore) Pte. Ltd. | Single channel memory mirror |
US7800740B2 (en) * | 2007-08-24 | 2010-09-21 | Sylvia Gumpesberger | Method and apparatus for identifying and characterizing objects based on fluorescence |
US8134694B2 (en) * | 2008-05-09 | 2012-03-13 | Apollo Diamond Gemstone Corporation | Detection of chemical vapor deposition grown diamond |
US8213000B2 (en) | 2008-05-09 | 2012-07-03 | Apollo Diamond Gemstone Corporation | Retail compatible detection of CVD grown diamond |
US9395350B2 (en) | 2010-06-21 | 2016-07-19 | Sy Kessler Sales, Inc. | Gem tester |
US8564316B2 (en) | 2010-06-21 | 2013-10-22 | Sy Kessler Sales, Inc. | Gem tester |
US8878145B1 (en) | 2012-07-27 | 2014-11-04 | Yan Liu | Apparatus and method for fluorescence spectral and color measurements of diamonds, gemstones and the like |
EP2840384B1 (en) | 2013-08-20 | 2020-06-17 | SATT Gems AG | Apparatus for the classification of colourless diamonds |
GB201511461D0 (en) | 2015-06-30 | 2015-08-12 | Beers Uk De Ltd | Luminescence measurements in diamond |
SG10201506282WA (en) | 2015-08-12 | 2017-03-30 | Jubilee Diamond Instr S Pte Ltd | Diamond Identification Apparatus |
CN105548111B (zh) * | 2015-12-27 | 2018-12-04 | 广州标旗光电科技发展股份有限公司 | 一种批量钻石快速筛查方法 |
WO2017208053A1 (en) | 2016-06-01 | 2017-12-07 | Jubilee Diamond Instrument (S) Pte.Ltd. | Precious stone testing device |
GB201622314D0 (en) * | 2016-12-28 | 2017-02-08 | Beers De Uk Ltd | Identification of mounted gemstones |
WO2018220572A1 (en) | 2017-06-01 | 2018-12-06 | Jubilee Diamond Instrument(S) Pte Ltd | Uv reflection tester |
US10837915B2 (en) | 2017-12-19 | 2020-11-17 | Jubilee Diamond Instrument (s) PTE. LTD | Gemstone testing apparatus |
CN112492886A (zh) | 2017-12-19 | 2021-03-12 | 钻禧仪器(新加坡)有限公司 | 宝石检测装置 |
GB2584876A (en) | 2019-06-19 | 2020-12-23 | Jubilee Diamond Instr S Pte Ltd | Gemstone testing apparatus |
EP4010689A4 (en) * | 2019-08-05 | 2023-07-19 | Goldway Technology Limited | DIAMOND AUTHENTICATION SYSTEM AND PROCESS |
GB2590932B (en) * | 2020-01-07 | 2024-02-07 | De Beers Uk Ltd | Determination of a gemstone's composition |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ZA71900B (en) * | 1971-02-12 | 1972-08-30 | De Beers Cons Mines Ltd | Separation of particles by electromagnetic radiation |
US4034066A (en) * | 1973-11-02 | 1977-07-05 | General Electric Company | Method and high pressure reaction vessel for quality control of diamond growth on diamond seed |
US4019060A (en) * | 1975-10-03 | 1977-04-19 | Gte Sylvania Incorporated | Fluorescence locating system and method |
NL180704C (nl) * | 1976-06-14 | Coulter Electronics | Inrichting voor gelijktijdige optische meting van kenmerken van zich in een suspensie bevindende deeltjes. | |
US4200801A (en) * | 1979-03-28 | 1980-04-29 | The United States Of America As Represented By The United States Department Of Energy | Portable spotter for fluorescent contaminants on surfaces |
DE3037983C2 (de) * | 1980-10-08 | 1983-03-31 | Fa. Carl Zeiss, 7920 Heidenheim | Verfahren und Vorrichtung zur lichtinduzierten rastermikroskopischen Darstellung von Probenparametern in ihrer räumlichen Verteilung |
GB2089029B (en) * | 1980-11-28 | 1984-03-21 | Scintrex Ltd | Method and apparatus for the remote detection of certain minerals of uranium zinc lead and other metals |
EP0064842A1 (en) * | 1981-05-12 | 1982-11-17 | Sphere Investments Limited | Material sorting |
US4394580A (en) * | 1981-07-27 | 1983-07-19 | L.C.E. Ltd. | Method and apparatus for analyzing gems |
GB2121535B (en) * | 1982-06-02 | 1986-04-30 | Anglo Amer Corp South Africa | Detector for use in sorting system |
FI72211C (fi) * | 1983-03-23 | 1987-04-13 | Outokumpu Oy | Foerfarande foer beaktande av straolningsbakgrunden foer bestaemning av straolningsintensiteter som uppstaor i kroppar som skall analyseras. |
JPH0714807B2 (ja) * | 1986-08-20 | 1995-02-22 | ド ビアーズ コンソリデイティッド マインズ リミテッド | 分離方法 |
GB8700917D0 (en) * | 1987-01-16 | 1987-02-18 | British Petroleum Co Plc | Separation process |
BE1002936A4 (fr) * | 1988-01-29 | 1991-09-03 | Argyle Diamond Sales Ltd | Procede et appareil pour le triage et/ou la confirmation de l'identification de pierres precieuses. |
GB2219079B (en) * | 1988-05-06 | 1992-09-09 | Gersan Ets | A method of identifying individual objects or zones |
US5206699A (en) * | 1988-05-06 | 1993-04-27 | Gersan Establishment | Sensing a narrow frequency band of radiation and gemstones |
IL92133A (en) * | 1989-10-27 | 1993-01-31 | Uri Neta Haifa And Aharon Yifr | Method and apparatus for identifying gemstones, particularly diamonds |
GB9009132D0 (en) * | 1990-04-24 | 1990-06-20 | Gersan Ets | Method and apparatus for examining an object |
US5146288A (en) * | 1991-06-19 | 1992-09-08 | Russell Kenneth M | Pearl loupe |
GB9210674D0 (en) * | 1992-05-19 | 1992-07-01 | Gersan Ets | Method and apparatus for examining an object |
AU676274B2 (en) * | 1993-03-05 | 1997-03-06 | Gersan Establishment | Distinguishing natural from synthetic diamond |
-
1994
- 1994-09-02 GB GB9417665A patent/GB9417665D0/en active Pending
-
1995
- 1995-08-18 JP JP8509269A patent/JPH10505159A/ja active Pending
- 1995-08-18 CA CA002198842A patent/CA2198842A1/en not_active Abandoned
- 1995-08-18 WO PCT/GB1995/001968 patent/WO1996007894A1/en not_active Application Discontinuation
- 1995-08-18 US US08/793,727 patent/US5801819A/en not_active Expired - Fee Related
- 1995-08-18 AU AU32619/95A patent/AU686442B2/en not_active Ceased
- 1995-08-18 KR KR1019970701362A patent/KR970705749A/ko not_active Application Discontinuation
- 1995-08-18 EP EP95929154A patent/EP0778940A1/en not_active Withdrawn
- 1995-08-23 ZA ZA9507081A patent/ZA957081B/xx unknown
- 1995-08-27 IL IL11507795A patent/IL115077A/xx not_active IP Right Cessation
- 1995-09-01 TW TW084109170A patent/TW343278B/zh active
Also Published As
Publication number | Publication date |
---|---|
AU686442B2 (en) | 1998-02-05 |
AU3261995A (en) | 1996-03-27 |
IL115077A0 (en) | 1995-12-08 |
IL115077A (en) | 1999-04-11 |
US5801819A (en) | 1998-09-01 |
EP0778940A1 (en) | 1997-06-18 |
JPH10505159A (ja) | 1998-05-19 |
WO1996007894A1 (en) | 1996-03-14 |
KR970705749A (ko) | 1997-10-09 |
GB9417665D0 (en) | 1994-10-19 |
CA2198842A1 (en) | 1996-03-14 |
TW343278B (en) | 1998-10-21 |
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