GIA CSE~3321 Glossary

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gemszar
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94749
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GIA CSE~3321 Glossary
Updated:
2011-07-21 06:01:37
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CSE3321 Glossary Vovsbulary
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Description:
GIA Colored Stones Essentials Vocablary (CSE 3321)
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  1. Add-on sale
    Additional merchandise sold to a customer in an ongoing transaction. (Colored Stone Essentials: Assignment 7)
  2. Adularescence
    The cloudy bluish white light in a moonstone, caused by scattering of light. (Colored Stone Essentials: Assignment 2)
  3. Amorphous
    Lacking a regular crystal structure. (Colored Stone Essentials: Assignment 1)
  4. Asterism
    Crossing of chatoyant bands, creating a star in the dome of a cabochon. (Colored Stone Essentials: Assignment 2)
  5. Aventurescence
    A glittery effect caused by light reflecting from small, flat inclusions within a gemstone. (Colored Stone Essentials: Assignment 2)
  6. Benefit
    The value a feature holds for a customer. (Colored Stone Essentials: Assignment 7)
  7. Bleaching
    A treatment that uses chemicals to lighten or remove color. (Colored Stone Essentials: Assignment 5)
  8. Blemish
    Characteristic or irregularity confined to the surface of a polished gemstone. (Colored Stone Essentials: Assignment 3)
  9. Blind purchase
    A purchase made without any research or prior knowledge. (Colored Stone Essentials: Assignment 7)
  10. Bodycolor
    A gemstone's basic color, determined by its selective absorption of light. (Colored Stone Essentials: Assignment 2)
  11. Brilliant cut
    Cutting style with triangular or kite-shaped facets that radiate from the center toward the girdle. (Colored Stone Essentials: Assignment 3)
  12. Buying uncertainty
    A customer's "fear" of buying. (Colored Stone Essentials: Assignment 7)
  13. Cabochon
    A smoothly rounded polished gem with a domed top and a flat or curved base. (Colored Stone Essentials: Assignment 3)
  14. Calibrated sizes
    Gemstone sizes cut to fit standard mountings. (Colored Stone Essentials: Assignment 3)
  15. Cameo
    A gem carving style in which the design, often a woman's profile, projects slightly from a flat or curved surface. (Colored Stone Essentials: Assignment 3)
  16. Cavity filling
    Treatment that fills and seals voids to improve appearance and add weight. (Colored Stone Essentials: Assignment 5)
  17. Chatoyancy
    Bands of light in certain gems, caused by reflection of light from many parallel, needle-like inclusions or hollow tubes. (Colored Stone Essentials: Assignment 2)
  18. Chemical composition
    Kinds and relative quantities of atoms that make up a material. (Colored Stone Essentials: Assignment 1)
  19. Chemical formula
    Written description of a material's chemical make-up. (Colored Stone Essentials: Assignment 1)
  20. Clarity
    A gemstone's relative freedom from inclusions and blemishes. (Colored Stone Essentials: Assignment 3)
  21. Clarity characteristic
    Internal or external feature of a gemstone that helps determine its quality. (Colored Stone Essentials: Assignment 3)
  22. Cleavage
    A smooth, flat break in a gemstone parallel to planes of atomic weakness. (Colored Stone Essentials: Assignment 3)
  23. Closed-ended question
    A question that requires only a "yes" or "no" response. (Colored Stone Essentials: Assignment 7)
  24. Closing ratio
    The number of successful sales compared to the number of total sales attempts. (Colored Stone Essentials: Assignment 7)
  25. Color center
    A small defect in the atomic structure of a material that can absorb light and give rise to a color. (Colored Stone Essentials: Assignment 2)
  26. Color change
    A distinct change in gem color under different types of lighting. (Colored Stone Essentials: Assignment 2)
  27. Colored stone
    Any gem material other than diamond. (Colored Stone Essentials: Assignment 1)
  28. Colorless impregnation
    Filling of pores or other openings with melted wax, resin, polymer, or plastic to improve appearance and stability. (Colored Stone Essentials: Assignment 5)
  29. Color range
    The selection of colors in which a gemstone occurs. (Colored Stone Essentials: Assignment 2)
  30. Color zoning
    Areas of different color in a gem, caused by variations in growth conditions. (Colored Stone Essentials: Assignment 2)
  31. Commercial market
    Market sector where average-quality gemstones are used in mass-market jewelry. (Colored Stone Essentials: Assignment 4)
  32. Compensation
    A way to overcome objections by acknowledging part of the initial objection, then inserting a compensating benefit. (Colored Stone Essentials: Assignment 7)
  33. Conchoidal fracture
    A curved and ridged fracture in a gemstone, extending from the surface inward. (Colored Stone Essentials: Assignment 6)
  34. Crazing
    The network of tiny fractures that develops when an opal loses moisture. (Colored Stone Essentials: Assignment 6)
  35. Crystal structure
    Regular, repeating internal arrangement of atoms in a material. (Colored Stone Essentials: Assignment 1)
  36. Cutting center
    A city, region, or country with a large number of gemstone manufacturers. (Colored Stone Essentials: Assignment 4)
  37. Dealer
    A wholesaler. (Colored Stone Essentials: Assignment 4)
  38. Density
    The weight of an object in relation to its size. (Colored Stone Essentials: Assignment 3)
  39. Designer cuts
    Artistic gem cuts that aren't limited to specific proportions or shapes. (Colored Stone Essentials: Assignment 3)
  40. Direct denial
    A direct way to correct a customer's misconceptions. (Colored Stone Essentials: Assignment 7)
  41. Disclosure
    Clearly and accurately informing customers about the nature of the goods they buy. (Colored Stone Essentials: Assignment 5)
  42. Dispersion
    The separation of white light into spectral colors. (Colored Stone Essentials: Assignment 2)
  43. Doublet
    Two separate pieces of material fused or cemented together to form a single assembled stone. (Colored Stone Essentials: Assignment 5)
  44. Durability
    A gemstone's ability to withstand wear, heat, and chemicals. (Colored Stone Essentials: Assignment 1)
  45. Dyeing
    A treatment that adds color or affects color by deepening it, making it more even, or changing it. (Colored Stone Essentials: Assignment 5)
  46. Ethics
    Rules or standards governing personal or professional conduct. (Colored Stone Essentials: Assignment 5)
  47. Extinction
    Dark areas in a faceted transparent colored stone. (Colored Stone Essentials: Assignment 2)
  48. Eye-clean
    Description for a gem with inclusions visible only under magnification. (Colored Stone Essentials: Assignment 3)
  49. Facet
    A flat, polished surface on a finished gem. (Colored Stone Essentials: Assignment 3)
  50. Fancy shape
    Any gemstone shape other than round. (Colored Stone Essentials: Assignment 3)
  51. Fantasy cut
    A free-form cut that can feature alternating curved and flat surfaces. (Colored Stone Essentials: Assignment 3)
  52. Fashioning
    Another term for gem cutting and polishing. (Colored Stone Essentials: Assignment 4)
  53. Fashion jewelry
    Inexpensive, or "costume," jewelry, often composed of materials other than precious metals and gemstones. (Colored Stone Essentials: Assignment 4)
  54. Feather
    A general term for a break in a stone. (Colored Stone Essentials: Assignment 3)
  55. Feature
    A characteristic or part of a piece of jewelry. (Colored Stone Essentials: Assignment 7)
  56. Federal Trade Commission (FTC)
    A US Government agency that issues guidelines for the jewelry trade. (Colored Stone Essentials: Assignment 1)
  57. Findings
    Small components used to make or repair jewelry. (Colored Stone Essentials: Assignment 6)
  58. Fine color
    The color or colors in a gemstone's color range considered by the trade to be the most desirable. (Colored Stone Essentials: Assignment 2)
  59. Finish
    The quality of the polish and precision of the cut of a fashioned gemstone. (Colored Stone Essentials: Assignment 3)
  60. Flame fusion
    A process in which powdered chemicals are dropped through a high-temperature flame onto a rotating pedestal to produce a synthetic crystal. (Colored Stone Essentials: Assignment 5)
  61. Fluid inclusion
    Small pocket in a gem that's filled with fluids and, sometimes, gas bubbles and tiny crystals. (Colored Stone Essentials: Assignment 3)
  62. Fluorescence
    Emission of visible light by a material when it's stimulated by ultraviolet radiation. (Colored Stone Essentials: Assignment 2)
  63. Flux growth
    A process in which nutrients dissolve in heated chemicals, then cool to form synthetic crystals. (Colored Stone Essentials: Assignment 5)
  64. Fracture
    Any break in a gem other than cleavage or parting. (Colored Stone Essentials: Assignment 3)
  65. Fracture (fissure) filling
    Using a filler to conceal fractures and improve the apparent clarity of a gem. (Colored Stone Essentials: Assignment 5)

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