Gia colored stones 1 - Study guides, Revision notes & Summaries

GIA Colored Stones Assignment 6 Exam Questions and Answers 100% Solved commercially important gems - Treatments that improve gem appearance and quality increase the supply of... available, affordable - Treatments that make gems more _____________ and ____________ are an important part of today's gem and jewelry market. disclosed - All treatments, even suspected or probable treatments, should be ______________ as part of every transaction. gems that are commonly heat treated - Corundu...

GIA Colored Stones 2023 Actual Questions and Answers 100% Verified Mineral A natural, inorganic substance with a characteristic chemical composition and usually characteristic structure. Mixed cut A cutting style that combines brilliant-cut and step cut facets. Abrasions Tiny nicks and pits caused by wear and damage to a gem's facet edges or culet. Absorption spectrum A pattern of dark vertical lines or bands shown by certain gems when viewed through a spectroscope. Adularescence Th...

GIA Colored Stones Assignment 19: Opal Exam Questions and Answers 100% Pass silica spheres - Precious opal is made of billions of uniform submicroscopic _________ ___________, stacked in an orderly pattern. light - Play-of-color is produced by the interaction of _________ with opals internal structure of stacked silica spheres. black opal - _________ _________ commands the highest prices of all opal types. white opal - _________ ________ makes of the bulk of commercialquality opal on th...

GIA Colored Stones Assignment 10 Exam Questions and Answers 100% Pass transparency, brilliance, durability - Clarity characteristics that affect these three things have the most influence on value. less noticeable - Cutters often leave cavities in _______ __________ areas to avoid weight loss from expensive rough. nature, size, number, position, relief - Five factors that determine the influence of clarity characteristics on marketability (NSNPR). clarity standards - Some types of color...

GIA Colored Stones Assignment 4 Exam Questions and Answers 100% Solved color - This is the most important factor in determining a colored gemstone's desirability, marketability, and value. light - This is a form of energy that travels in waves. selective absorption - Most gem color is caused by... chemical composition and crystal structure - Selective absorption is influenced by... (2) visible light - Some colored gems can be identified by the way they absorb... trasition element - ...

GIA Colored Stones Assignment 12: Ruby Exam Questions and Answers 100% Solved per-carat - Ruby can command the highest ______-__________ price of all colored stones. 9 - Ruby rates ____ on the Mohs hardness scale, so it's ideal for frequently worn jewelry. purplish, dark, vivid - The most valuable ruby colors are red to slightly ____________ red with medium to medium-_______ tones and __________ saturation. division - Not everyone agrees on the _______________ between ruby and pink...

Gia Colored Stone Final Exam Questions and Answers 100% Solved | Graded A+ Which of the following is a gem variety? Assignment 1 - demantoid A substance that consists of atoms of only one kind is a. Assignment 1 - chemical element Which of the following is an organic gem? Assignment 1 - amber Many colored stones are mined by. Assignment 1 - independent miners using small-scale mining methods. Which group does almandine belong to? Assignment 1 - Garnet Synthetic gem materials. Assignment...

GIA Colored Stones (1)

GIA Diamond Essentials - Assignment 1 Questions and Correct Answers, With Complete Verified Solution 2024. chemical composition Types and relative quantities of a mineral's atoms structure The arrangement of atoms in a mineral chemical element Substance that contains only one type of atom What is the chemical composition of Diamond? Carbon with trace elements How is a diamond formed? High temperature and pressure What range beneath the Earth's surface may diamond form? 90-120 mil...

GIA Diamond Essentials Questions and Correct Answers, Exam Prep 2024. chemical element consists of only one kind of atom mineral inorganic. most minerals are a combo of 2 or more elements diamonds form within 90-120 miles below earth's surface value factos features used to judge the quality and value of stones - a diamonds value is based on its combo of the Four C's inclusions clarity characteristic totally enclosed in a polished gemstone or extending into it from the surface. affe...