COURSE UNIT TITLE

: COLORED STONE GRADING SYSTEM AND ESSENTIALS

DEGREE PROGRAMMES

Description of Individual Course Units

Course Unit Code Course Unit Title Type Of Course D U L ECTS
NBG 5019 COLORED STONE GRADING SYSTEM AND ESSENTIALS ELECTIVE 2 0 0 5

Offered By

Graduate School of Natural and Applied Sciences

Level of Course Unit

Second Cycle Programmes (Master's Degree)

Course Coordinator

PROFESSOR MURAT HATIPOĞLU

Offered to

NATURAL BUILDING STONES AND GEMSTONES

Course Objective

Finding out how the gemstones occur and how the gemmologists classify them. Exercises of the grading regarding to color, clarity, weight and cut on the colored stones. Be able to accommodate a colored stone report using standard and further gem testing equipments.

Learning Outcomes of the Course Unit

1   Be able to acquire coloration theories in the colored jewellery stones (transparent and opaque).
2   Be able to distinguish and identify of color in the gemstones.
3   Clarity in the colored stones, be able to distinguish and state a transparency adjectivally.
4   Be able to separate the feature and economics between the colored stones.
5   Be able to acquire the making practise using the devices while a colored stone is acknowledged.

Mode of Delivery

Face -to- Face

Prerequisites and Co-requisites

None

Recomended Optional Programme Components

None

Course Contents

Week Subject Description
1 Gem value criteria (naturalness, color, transparency, clarity-impurity, largeness, production area, cutting form). Grading transparent, translucent and opaque gems.
2 Light (its description and features, light, energy and quantum consideration, reflection and refraction). The relationship between light and color.
3 Coloring in transparent and opaque gems. Causes and types of color in gems (idiochromatic, allochromatic and pseudochromatic colorings).
4 Coloring theories in gemstones. Crystal field theory-Molecular orbital theory-Color centers-Band theory-Physical optics theory. Learning the language of color.
5 How to grade and describe color. How color affects value.
6 Clarity. Recognizing inclusions and setting a clarity grade. Plotting inclusions.
7 Mid Term Exam
8 Carat weighing and weight estimation techniques.
9 Cutting styles and how to grade them. How to grade proportion and finish. Recognize characteristics and value differences among gemstones.
10 Learn aspects of gemstones that affect value. Learn how to relate quality, rarity, and color to value.
11 Learn how to accommodate a colored stone report using gemstone testing equipments.
12 Learn how to accommodate a colored stone report using gemstone testing equipments.
13 Learn how to accommodate a colored stone report using gem testing equipments.
14 Market values according to working out country and/or district. Learn how wholesalers-gem cutters-and miners judge and market colored stones.

Recomended or Required Reading

1. Cornelius S. HURLBUT. Gemology.
2. Murat HATIPOĞLU. Gemstones.
3. Murat HATIPOĞLU. Precious colored stones.
4. Kurt NASSAU. Gems made by man.

Planned Learning Activities and Teaching Methods

1.Teaching
2.To be made application and research homework

Assessment Methods

SORTING NUMBER SHORT CODE LONG CODE FORMULA
1 MTE MIDTERM EXAM
2 ASG ASSIGNMENT
3 FIN FINAL EXAM
4 FCG FINAL COURSE GRADE MTE * 0.30 +ASG * 0.20 +FIN * 0.50
5 RST RESIT
6 FCGR FINAL COURSE GRADE (RESIT) MTE * 0.30 + ASG * 0.20 + RST * 0.50


Further Notes About Assessment Methods

1.Teoritical Mid Exam %30 (CLO1, CLO2, CLO3, CLO4)
2.Presentation of Assignment and Research Homework %20 (CLO5)
3.Final Exam %60 (CLO1, CLO2, CLO3, CLO4)

Assessment Criteria

It will be evaluated theoretical mid exam, presentation of assignment and research homework and final exam as well as 5 course-learning outcomes.

Language of Instruction

English

Course Policies and Rules

All students must attend to the conducted courses with at least 80%. During the course and in the exams, all kind of making a copy are evaluated comprising a discipline crime.

Contact Details for the Lecturer(s)

murat.hatipoglu@deu.edu.tr 0232-3012564

Office Hours

Working hours in week that the faculty staff has not a course period

Work Placement(s)

None

Workload Calculation

Activities Number Time (hours) Total Work Load (hours)
Lectures 12 2 24
Preparations before/after weekly lectures 10 2 20
Preparation for midterm exam 1 4 4
Preparation for final exam 1 5 5
Preparing presentations 1 70 70
Final 1 1 1
Midterm 1 1 1
TOTAL WORKLOAD (hours) 125

Contribution of Learning Outcomes to Programme Outcomes

PO/LOPO.1PO.2PO.3PO.4PO.5PO.6PO.7PO.8PO.9PO.10PO.11PO.12
LO.1423111
LO.2313131
LO.324
LO.432423
LO.551243

CONTACT INFORMATION
Dokuz Eylül Üniversitesi Cumhuriyet Bulvarı No: 144 35210 Alsancak / İZMİR
Phone: +90(232) 412 12 12 - Fax: +90 (232) 464 81 35

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