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Ultimate guide to laboratory-grown diamonds | Part 1
Welcome
Welcome to the course (2:08)
Glossary PDF download
Section 1: Covering the basics
What is diamond? (1:02)
What is laboratory-grown diamond? (1:29)
Key definitions (2:19)
Key definitions summary sheet
Terminology
Comparison of properties
Natural diamonds vs LGDs; origin, volume, rarity and price
Production methods (0:57)
Summary (2:45)
Quiz
Section 2: Terminology & disclosure
Terminology & disclosure (1:22)
Terminology by country
Important links
Terminology and disclosure guide
The importance of disclosure
Quiz
Section 3: History
The build up to synthesis success
Early HPHT synthesis
General Electric documentary; 1968 (11:36)
1970 - Present
Timeline for HPHT synthesis
Timeline for CVD synthesis
Record breakers
Summary (2:16)
Quiz
Section 4: Production of HPHT laboratory-grown diamonds
Objectives - Section 4: Production of HPHT laboratory-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 5: HPHT crystals and diamond types
Objectives - Section 5: HPHT crystals and diamond types
Crystal forms
Diamond types (background information)
HPHT diamond types
How different diamond types are created (3:58)
Growth time
Summary (2:50)
Quiz
Section 6: Features of HPHT laboratory-grown diamonds
Objectives - Section 6: Features of HPHT laboratory-grown diamonds
Colour
Clarity
Sizes
Record-breaking HPHT stones
Observational features
Summary (3:08)
Quiz
Section 7: Production of CVD laboratory-grown diamonds
Objectives - Section 7: Production of CVD laboratory-grown diamonds
What is 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 8: CVD crystals and diamond types
Objectives - Section 8: CVD crystals and diamond types
Crystal form
CVD diamond types
Post-growth treatment
Summary (2:17)
Quiz
Section 9: Features of CVD synthetic diamonds
Objectives - Section 9: Features of CVD laboratory-grown diamonds
Colour
Clarity
Sizes
Observational features
Summary (2:31)
Quiz
Section 10: Colours and treatments
Objectives - Section 10: Colours and treatments
As-grown colours (2:37)
Summary of as-grown colours
Unusual causes of colour
Post-growth treatments
Colour treatments (7:01)
Treatment methods summary
Post-growth treatment summary
Summary (2:15)
Quiz
Section 11: Assessing quality of laboratory-grown diamonds
Objectives - Section 11: Assessing quality
Assessing the quality of laboratory-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 12: Other uses of diamond
Objectives - Section 12: Other uses of diamond
History
Desirable properties of diamond
Uses
Abrasives
Non-abrasives
NPD
Quiz
Section 13: Alternative carbon sources for diamond
Introduction: Alternative carbon sources
Memorial diamonds
Air diamonds
Final note
Online EXAM
Final test: Instructions
Good luck
Final test
What next?
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How different diamond types are created
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