Cratons - Study guides, Study notes & Summaries

GIA Diamonds and Diamond Grading Final Exam Questions and Correct Answers. Complete Verified Solution 2024. Substantial price discounts are available to retailers and jewelry manufacturers who can buy in large quantities. The diamond industry has changed dramatically in recent years because the world's supply of diamond rough has increased. A diamond grading system provides a consistent way to communicate diamond quality. Diamond's supreme hardness and durability are a result of the co...

Diamonds were delivered to the earth's surface as recently as A. 20 billion years ago. B. 20 million years ago. C. 1 million years ago. D. 10,000 years ago. - Answer-B. 20 million years ago. The three main components of the earth are the crust, mantle, and A. core. B. center. C. stratosphere. D. subduction zone. - Answer-A. core. How far beneath the earth's surface do diamonds form? A. 15 to 30 miles (25 to 50 kilometers) B. 30 to 50 miles (50 to 75 kilometers) C. ...

GIA DIAMOND AND DIAMOND GRADING FINAL LATEST UPDATE How are gem-quality rough diamonds sorted? - CORRECT ANSWER weight, shape, clarity, and color What is a downstream segment of the mine to market diamond journey? - CORRECT ANSWER Selling to a customer via diamond jewelry retail What describes a larger organization buying and joining smaller companies? - CORRECT ANSWER Consolidation What region was the heart of the diamond rush in South Africa? - CORRECT ANS...

EOSC 118 EXAM WITH COMPLETE SOLUTIONS 100% CORRECT Methods for synthetically producing diamonds - Answer- Carbon Vapour Deposition (CVD), High Pressure High Temperature growth (HPHT) HPHT growth - Answer- seed diamonds placed in chamber, flooded with molten carbon and catalysts, imitates growth of natural diamonds, 1500 degrees C and 60,000 atm pressure Carbon Vapour Deposition (CVD) - Answer- flow H and CH4 gas through chamber with plasma flame in flow path, low pressure, uses diamond...

GIA DIAMOND AND DIAMOND GRADING FINAL 2024- 2025 LATEST UPDATE How are gem-quality rough diamonds sorted? - CORRECT ANSWER weight, shape, clarity, and color What is a downstream segment of the mine to market diamond journey? - CORRECT ANSWER Selling to a customer via diamond jewelry retail What describes a larger organization buying and joining smaller companies? - CORRECT ANSWER Consolidation What region was the heart of the diamond rush in South Africa? - CORRECT ANSWER Kimberly ...

GIA DIAMOND AND DIAMOND GRADING FINAL 2024- 2025 LATEST UPDATE How are gem-quality rough diamonds sorted? - CORRECT ANSWER weight, shape, clarity, and color What is a downstream segment of the mine to market diamond journey? - CORRECT ANSWER Selling to a customer via diamond jewelry retail What describes a larger organization buying and joining smaller companies? - CORRECT ANSWER Consolidation What region was the heart of the diamond rush in South Africa? - CORRECT ANSWER Kimberly ...

GIA DIAMOND AND DIAMOND GRADING FINAL 2024- 2025 LATEST UPDATE How are gem-quality rough diamonds sorted? - CORRECT ANSWER weight, shape, clarity, and color What is a downstream segment of the mine to market diamond journey? - CORRECT ANSWER Selling to a customer via diamond jewelry retail What describes a larger organization buying and joining smaller companies? - CORRECT ANSWER Consolidation What region was the heart of the diamond rush in South Africa? - CORRECT ANSWER Kimberly ...

GIA Diamond & Diamond Grading Exam - Questions and Answers (Complete Solutions) A diamond grading system provides a consistent way to communicate diamond quality A wholesaler is someone who sells to retailers Diamond prices on wholesale price lists depend on the market conditions that exist when the lists are published Large, high-quality diamonds are graded much more thoroughly than small, low-quality ones Diamond's supreme hardness and durability are a result of the conditions under which i...

GIA Diamond Grading Quiz 2 - Questions and Answers Before the discovery of South Africa's diamond deposits, the world's two major producers were India and Brazil Diamond sources started appearing in South Africa during the 1860s The Central Selling Organization was a rough diamond distribution agency. The South African diamond rush was sparked by the discovery of the Star of South Africa. The soft, diamond-bearing material near the surface of a diamond field was named Yellowground Cecil Rhod...

Name the three major kinds of rocks - Sedimentary- deposition of material at the Earth's surface and within bodies of water Metamorphic- transformation of existing rock through heat or pressure Igneous- cooling and solidification of magma and lava Has the African plate been stationary or mobile and have other plates moved towards or away from it? - Relatively stationary while other plates have moved away from it causing no collisions ad therefore no mountain chains formed. How was the A...