CA1062484A - Methods of polishing diamonds - Google Patents

Methods of polishing diamonds

Info

Publication number
CA1062484A
CA1062484A CA242,458A CA242458A CA1062484A CA 1062484 A CA1062484 A CA 1062484A CA 242458 A CA242458 A CA 242458A CA 1062484 A CA1062484 A CA 1062484A
Authority
CA
Canada
Prior art keywords
stone
faces
girdle
gemstone
diamond
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.)
Expired
Application number
CA242,458A
Other languages
English (en)
French (fr)
Inventor
Paul Robinson
Susan L. Wright
Ronald T. Stanton
David C. Evans
Christopher M. O'farrell
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.)
TOYE GEMSTONES Ltd
Original Assignee
TOYE GEMSTONES 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
Priority claimed from GB92/75A external-priority patent/GB1480431A/en
Application filed by TOYE GEMSTONES Ltd filed Critical TOYE GEMSTONES Ltd
Application granted granted Critical
Publication of CA1062484A publication Critical patent/CA1062484A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C17/00—Gems or the like
    • A44C17/001—Faceting gems

Landscapes

  • Adornments (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Optical Elements Other Than Lenses (AREA)
CA242,458A 1975-01-02 1975-12-23 Methods of polishing diamonds Expired CA1062484A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB92/75A GB1480431A (en) 1975-01-02 1975-01-02 Method of polishing diamonds
GB4373575 1975-10-24

Publications (1)

Publication Number Publication Date
CA1062484A true CA1062484A (en) 1979-09-18

Family

ID=26235682

Family Applications (1)

Application Number Title Priority Date Filing Date
CA242,458A Expired CA1062484A (en) 1975-01-02 1975-12-23 Methods of polishing diamonds

Country Status (19)

Country Link
JP (1) JPS5193495A (fi)
AT (1) AT340794B (fi)
AU (1) AU502807B2 (fi)
BR (1) BR7508745A (fi)
CA (1) CA1062484A (fi)
CH (1) CH593779A5 (fi)
DE (1) DE2558495A1 (fi)
DK (1) DK593675A (fi)
ES (1) ES217820Y (fi)
FI (1) FI753698A (fi)
FR (1) FR2296503A1 (fi)
IE (1) IE42227B1 (fi)
IL (1) IL48765A (fi)
IT (1) IT1055720B (fi)
LU (1) LU74117A1 (fi)
NL (1) NL7515258A (fi)
NO (1) NO754366L (fi)
NZ (1) NZ179674A (fi)
SE (1) SE410267B (fi)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4020649A (en) * 1976-05-27 1977-05-03 Henry Grossbard Brilliantized step cut diamond
IL58834A (en) * 1978-12-06 1982-12-31 Clarke Roger Maxwell Gemstone and method and device for cutting it
DE4210995C2 (de) * 1992-04-02 1997-04-03 Ulrich Dr Freiesleben Geschliffener Edelstein, insbesondere Diamant
DE4409291A1 (de) * 1994-03-18 1995-09-21 Norbert Muerrle Lichtdurchlässiger Schmuckstein

Also Published As

Publication number Publication date
NZ179674A (en) 1978-03-06
IE42227L (en) 1976-07-02
FR2296503A1 (fr) 1976-07-30
IL48765A (en) 1978-04-30
ATA990575A (de) 1977-04-15
AT340794B (de) 1978-01-10
CH593779A5 (fi) 1977-12-15
NO754366L (fi) 1976-07-05
AU502807B2 (en) 1979-08-09
ES217820Y (es) 1977-01-01
AU8799675A (en) 1977-07-07
IL48765A0 (en) 1976-02-29
NL7515258A (nl) 1976-07-06
DK593675A (da) 1976-07-03
IE42227B1 (en) 1980-07-02
FI753698A (fi) 1976-07-03
BR7508745A (pt) 1977-05-17
SE7514619L (sv) 1976-07-05
ES217820U (es) 1976-08-16
SE410267B (sv) 1979-10-08
IT1055720B (it) 1982-01-11
JPS5193495A (fi) 1976-08-16
DE2558495A1 (de) 1976-07-15
LU74117A1 (fi) 1976-07-20

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