• Foreword
• Preface: A History of Diamond Treatment Methods

1. Color Treatments

• Coated Diamonds
• Irradiated Diamonds
• Annealed Diamonds
  • HPHT-Annealed to Reduce Color
  • HPHT-Annealed to Produce a Fancy Color
  • Low-Pressure, High-Temperature Annealing to Produce Black Diamonds

2. Clarity Treatments

• Laser-Drilled Diamonds
• Glass-Filled Diamonds
  
• Epilogue
• About the Author
• Consolidated References
• Index

FOREWORD

PREFACE: A HISTORY OF DIAMOND TREATMENT METHODS

1. Color Treatments

COATED DIAMONDS

Diamond-coating techniques and methods of detection

Coated diamonds

Lab Notes: Coated diamond

Lab Notes: Painted pink diamond: The big switch

Lab Notes: Coated diamonds

Lab Notes: “Coated” diamond

Lab Notes: Diamond colored by pink coating

Lab Notes: Coated diamonds

Coated pink diamond—A cautionary tale

Lab Notes: Coated pink diamonds

Serenity coated colored diamonds: Detection and durability

[TOP]

IRRADIATED DIAMONDS

Radium-treated diamonds

Report on a radioactive diamond

Bombarded diamonds

Sir William Crookes’ green diamond

The recognition of surface irradiated diamonds

Discrimination between natural blue diamonds and diamonds colored blue artificially

Spectroscopic recognition of yellow bombarded diamonds

Lab Notes: Radium-treated diamonds

Artificial coloration of diamonds

Lab Notes: Treated red-brown diamond

Lab Notes: Cyclotron-treated diamonds

The identification of artificial coloration in diamond

Detection of treatment in two unusual green diamonds

Lab Notes: Treated green diamonds

Contribution to the identification of treated colored diamonds with peculiar color-zoned pavilions

Lab Notes: Treated-color diamond with natural radiation stains

Lab Notes: Treated “black” diamond

Lab Notes: Another radioactive diamond

Lab Notes: Treated green diamond

Lab Notes: Treated green diamond with a blue color zone

Lab Notes: Cyclotron-treated diamond

Lab Notes: Americium-treated green diamond

Lab Notes: Light yellow treated-color diamond

Lab Notes: A suite of treated-color pink-to-purple diamonds

Lab Notes: Diamond color treated from orangy yellow to reddish purple

[TOP]

ANNEALED DIAMONDS

HPHT-Annealed to Reduce Color

Gem News International: A review of “GE-processed” diamonds

Observations on GE-processed diamonds: A photographic record

Clues to the process used by General Electric to enhance the GE POL diamonds

Spectroscopic evidence of GE POL HPHT-treated natural type IIa diamonds

Letters: New spectral evidence for GE POL diamond detection

GE POL diamonds: Before and after

[TOP]

HPHT-Annealed to Produce a Fancy Color

Lab Notes: Yellow to yellow-green diamonds treated by HPHT, from GE and others

Identification of HPHT-treated yellow to green diamonds

Lab Notes: Blue and pink HPHT-annealed diamonds

Lab Notes: Update on blue and pink HPHT-annealed diamonds

Lab Notes: Altered vs. natural inclusions in fancy-color diamonds

Gem News International: HPHT-processed diamonds from Korea

Gem News International: Commercial production of HPHT-treated diamonds showing a color shift

Treated-color pink-to-red diamonds from Lucent Diamonds Inc.

Lab Notes: HPHT-treated type IIa yellow diamond

Lab Notes: Orange diamond treated by multiple processes

Symposium Proceedings: Identification technologies for diamond treatments

GRC Proceedings: Treated diamond—A physicist’s perspective

GRC Proceedings: HPHT treatment of type IaB brown diamonds

GRC Proceedings: High-energy ultraviolet luminescence imaging—Applications of the DTC DiamondView for gem identification

GRC Proceedings: High-pressure, high temperature (HPHT) diamond processing—What is this technology and how does it affect color?

GRC Proceedings: Natural diamond enhancement—The transformation of intrinsic and impurity defects in the diamond lattice

[TOP]

Low-Pressure, High-Temperature Annealing to Produce Black Diamonds

Lab Notes: Heat-treated black diamond—Before and after

[TOP]

2. Clarity Treatments

LASER-DRILLED DIAMONDS

Lab Notes: Laser beams in gemology

Lab Notes: Drilled diamonds

Lab Notes: Developments and highlights at GIA’s lab in Los Angeles

Lab Notes: A successful laser experiment

Lab Notes: Laser drill holes or natural inclusions?

A new lasering technique for diamond

Lab Notes: Diamond with unusual laser drill holes

[TOP]

GLASS-FILLED DIAMONDS

Gem News International: “Filled” diamonds

The characteristics and identification of filled diamonds

An update on filled diamonds: Identification and durability

A visual guide to the identification of filled diamonds

Lab Notes: Identifying filled fractures—New challenges

Lab Notes: Fracture-filled pink diamond

New filling material for diamonds from Oved Diamond Company: A preliminary study

Lab Notes: Diamond with fracture filling to alter color

[TOP]

EPILOGUE

ABOUT THE AUTHORS

CONSOLIDATED REFERENCES

INDEX

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