Curriculum
Welcome
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Section 0: Introduction
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Section 1: Observations - Natural vs laboratory-grown diamond
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- Objectives for Section 1 - Observations: Natural vs. laboratory-grown diamond
- Crystal forms (4:57)
- Crystal gallery
- Laser inscription (1:41)
- Inclusions
- Graining
- Colour zones
- Blue nuance
- Natural vs LG features - summary cheatsheet
- Inclusions and feature gallery
- Step-by step guide to identifying a diamond with observations only
- Summary (1:55)
- Quiz
Section 2.0: Basic tests
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Section 2.1: Magnetism
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Section 2.2: Electrical conductivity
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Section 2.3: UV testing
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- UV testing
- Defects and fluorescence
- Emitted energy and fluorescence colour
- UV Equipment
- Common UV responses - Strength of fluorescence
- Common UV reactions - Colours of fluorescence
- Common UV responses - Phosphorescence
- Video of fluorescence and phosphorescence (0:31)
- Common UV responses
- Colourless diamond UV reactions
- Yellow diamond UV reactions
- Blue diamond UV reactions
- Pink diamond UV reactions
- Cubo-octahedral fluorescent patterns in HPHT (1:04)
- Orange phosphorescence in HPHT (0:30)
- Jewellery Inspector
- Jewellery Inspector - Equipment sheet
- GemPen (R)
- GemPen (R) - Equipment sheet
- Summary (2:29)
- Quiz
2.4: Crossed polarising filters (CPF)
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Section 2.5: Basic test summary
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Spectroscopy
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Section 3.0: Screening tests
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Section 3.1: Screening tests - UV-Vis testing
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Section 3.2: Screening tests - UV transparency testing
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Section 3.3: Photoluminescence spectroscopy
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Section 3.4: Phosphorescence imaging
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3.5: Screening tests - Summary
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Section 4.0: Advanced testing
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Section 4.1: FTIR
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Section 4.2: UV-Vis-NIR
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Section 4.3: Photoluminescence (PL) spectroscopy
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Section 4.4: EDXRF
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Section 4.5: Fluorescence imaging
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Section 4.6: Advanced testing - Summary
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Section 5: Testing melee diamonds
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Step-by-step guide
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Final Test
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What's next?
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