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Part 1: Core knowledge of laboratory-grown diamonds
Welcome
Welcome to the course (2:08)
Copyright notice
User guide (3:58)
Record your study hours
Glossary PDF download
Section 1: Introduction
Objectives - Section 1: Introduction
Introduction (4:24)
Key definitions (2:19)
Terminology (1:44)
Terms and definitions summary
The importance of disclosure
Natural diamonds vs LGDs; origin, volume, rarity and price
Production methods (0:57)
Summary (2:45)
Quiz
Section 2: History
Objectives - Section 2: History
The build up to synthesis success
General Electric documentary; 1968 (11:36)
1970 - Present
Timeline for HPHT synthesis
Timeline for CVD synthesis
Summary (2:16)
Quiz
Section 3: Production of HPHT lab-grown diamonds
Objectives - Section 3: Production of HPHT lab-grown diamonds
Heat and pressure
Ingredients list
HPHT synthesis method animation (3:43)
The reaction cell (2:17)
Recipe for HPHT diamond synthesis
HPHT Apparatus
HPHT apparatus summary
HPHT multiple crystal growth (2:05)
Summary of HPHT synthesis
Summary (2:56)
Quiz
Section 4: HPHT diamond crystals and diamond types
Objectives - Section 4: HPHT diamond crystals and diamond types
Crystal forms
Diamond types (background information) (2:41)
Diamond types summary PDF download
Diamond types grown by HPHT (3:58)
HPHT diamond types PDF download
Growth time
Summary (2:50)
Quiz
Section 5: Features of HPHT synthetic diamonds
Objectives - Section 5: Features of HPHT synthetic diamonds
Colour
Clarity
Sizes
Record-breaking HPHT diamonds
Observational features
Summary (3:08)
Quiz
Section 6: Production of CVD lab-grown diamonds
Objectives - Section 6: Production of CVD lab-grown diamonds
What is a plasma?
Ingredients list
Apparatus and production method
Production method animation (4:42)
Recipe for CVD synthesis
Multi-stage growth of CVD diamond
Summary of CVD synthesis
Summary (1:59)
Quiz
Section 7: CVD diamond crystals and diamond types
Objectives - Section 7: CVD diamond crystals and diamond types
Crystal form
CVD diamond types (2:11)
CVD diamond type summary
Post-growth HPHT/LPHT treatment
Summary (2:17)
Quiz
Section 8: Features of CVD synthetic diamonds
Objectives - Section 8: Features of CVD synthetic diamonds
Colour
Clarity
Sizes
Observational features
Summary (2:31)
Quiz
Section 9: Colours and treatments
Objectives - Section 9: Colours and treatments
As-grown colours (2:37)
Summary of as-grown colours
Unusual causes of colour in LGD's
Post-growth treatments
Colour treatments (7:01)
Treatment methods summary
Post-growth treatment summary
Summary (2:15)
Quiz
Section 10: Assessing quality of laboratory-grown diamonds
Objectives - Section 10: Assessing quality
Assessing the quality of lab-grown diamonds
The 4Cs of laboratory-grown diamonds
Grading labs and reports
Example report: IGI
Example report: GIA
Example report: GCAL
Laser inscriptions
Pricing
Summary (3:54)
Quiz
Section 11: Other uses of diamond
Objectives - Section 11: Other uses of diamond
History
Desirable properties of diamond
Uses
Abrasives
Non-abrasives
NPD
Quiz
Section 12: Alternative carbon sources for diamond
Introduction: Alternative carbon sources
Memorial diamonds
Air diamonds
Final note
Online EXAM
Final test: Instructions
Good luck
Final test
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Growth time
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