Gemstone treatments that QVC knowingly ?· Gemstone treatments that QVC knowingly accepts. ......

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Transcript of Gemstone treatments that QVC knowingly ?· Gemstone treatments that QVC knowingly accepts. ......

  • Gemstone treatments that QVC knowingly accepts.

    QVC makes every effort to ensure that all items we sell meet our strict quality standards. The chart below representsthose gemstone treatments that QVC knowingly accepts.

    Although there are a number of temporary treatments Commonly allowed by the jewelry industry, QVC, with theexception of emeralds which are treated with a colorless oil, accepts only those treatments that are either permanent orstable.

    To quickly find information on a specific gemstone, click the appropriate link below. Your page will "jump" to the topof that section.

    A - B C - E G - J L - O P - R S T - Z

    Gemstone Enhancement method Purpose Frequencyused StabilitySpecial

    care

    Agate (also seeonyx)

    Treatment Free

    Normal.Click herefor cleaningand careinstructions.

    Dyed To alter color Usually Excellentto Good

    Normal.Certainstones mayfade in heator light.

    Heated To alter color Usually Excellentto Good

    Normal.Click herefor cleaningand careinstructions.

    Patterned Agate(Crazy Agate)

    None

    Normal.Certainstones mayfade in heator light.

    Dyed To alter color Usually Excellentto Good

    Normal.Click herefor cleaningand careinstructions.

    Blue Lace Agate None

    Normal.Certainstones mayfade in heator light.

  • Alexandrite(Also seeChrysoberyl)

    None

    Normal.Click herefor cleaningand careinstructions.

    Amazonite

    None

    Avoid heat,chemicals&ultrasoniccleaners

    Luster Enhanced To improve overallappearance OftenVeryGood

    Avoid heat,chemicals,&ultrasoniccleaners

    Amber, YellowGolden Brownto ReddishBrown andOrange

    None

    Avoid heat,temperaturechanges,steaming,chemicals,abrasives,ultrasoniccleaners &repolishing.

    HeatedTo improve appearance,add "sun spangles" &deepen color

    CommonlyVeryGood toGood

    Avoid heat,temperaturechanges,steaming,chemicals,abrasives,ultrasoniccleaners &repolishing.

    Heated w/ Oils andPressure To alter color Commonly

    VeryGood toGood

    Avoid heat,temperaturechanges,steaming,chemicals,abrasives,ultrasoniccleaners &repolishing.

    Heated w/Pressure To alter color CommonlyVeryGood toGood

    Avoid heat,temperaturechanges,steaming,chemicals,abrasives,ultrasoniccleaners &

  • repolishing.

    AmberDoublet, Green

    Assembled Product:Golden amber on a blackbase

    To create the greencolor Always

    VeryGood toGood

    Special carerequired.Avoidabrasives.

    Amethyst

    None

    Normal.Some un-heatedmaterialmay fadewith longexposure tosunlight.

    Heated To lighten and /orremove color Commonly Excellent

    Normal.Click herefor cleaningand careinstructions.

    Irradiated To deepen and /orremove color Commonly Excellent

    Normal.Click herefor cleaningand careinstructions.

    Ametrine

    None

    Normal.Click herefor cleaningand careinstructions.

    Heated To alter color Unknown Excellent

    Normal.Click herefor cleaningand careinstructions.

    Irradiated To alter color Unknown Excellent

    Normal.Click herefor cleaningand careinstructions.

    None

    AvoidROUGHWEAR,heat,temperaturechanges,steaming,chemicals,ultrasoniccleaners &repolishing.

  • Ammolite

    Coated To increase durability Usually Good

    AvoidROUGHWEAR,heat,temperaturechanges,steaming,chemicals,ultrasoniccleaners &repolishing.

    Doublet(AssembledProduct)

    Coated To increase durability Always Good toFair

    Avoid heat,temperaturechanges,steaming,chemicals,ultrasoniccleaners &repolishing.

    Triplet(AssembledProduct)

    Impregnated withcolorless, hardenedsubstances

    To increase durability Always Good toFair

    Avoid heat,temperaturechanges,steaming,chemicals,ultrasoniccleaners &repolishing.

    Andalusite None

    Normal.Click herefor cleaningand careinstructions.

    Apatite None

    Avoid heat,temperaturechanges,steaming,chemicals,ultrasoniccleaners &repolishing.

    Apatite - Beadsand Cabochons

    None

    Avoid heat,temperaturechanges,steaming,chemicals,ultrasoniccleaners &repolishing.

    Avoid heat,

  • Luster Enhanced To improve appearance& clarity Often Good

    temperaturechanges,steaming,chemicals,ultrasoniccleaners &repolishing.

    Aquamarine,Blue to GreenBeryl

    None

    Normal.Click herefor cleaningand careinstructions.

    Heated To alter color Usually Excellent

    Normal.Click herefor cleaningand careinstructions.

    Aquamarine,Beads andCabochons

    None

    Normal.Click herefor cleaningand careinstructions.

    Heated To alter color Often Good

    Normal.Click herefor cleaningand careinstructions.

    Luster Enhanced To improve appearance& clarity Often Good

    Avoid heatchemicals&ultrasoniccleaning.

    Aventurine,Green None

    Normal.Click herefor cleaningand careinstructions.

    Beryl, MilkyAqua

    None

    Normal.Click herefor cleaningand careinstructions.

    Heated

    Normal.Click herefor cleaningand careinstructions.

    Normal.

  • Luster Enhanced Click herefor cleaningand careinstructions.

    Pink(Morganite)

    Heated Eliminate yellowovertones Commonly Excellent

    Normal.Click herefor cleaningand careinstructions.

    Irradiated To alter color Unknown Excellent

    Normal.Click herefor cleaningand careinstructions.

    Yellow-Green

    None

    Normal.Click herefor cleaningand careinstructions.

    Irradiated To alter color Unknown Excellent

    Normal.Click herefor cleaningand careinstructions.

    Blue or Blue-Green See Aquamarine

    Normal.Click herefor cleaningand careinstructions.

    Colorless(Goshenite)

    None

    Normal.Click herefor cleaningand careinstructions.

    Heated To eliminate tints ofcolor Unknown Excellent

    Normal.Click herefor cleaningand careinstructions.

    None

    Avoidsuddentemperaturechanges andharshchemicals.

    Dyed To alter color CommonlyVeryGood to

    Avoidsuddentemperature

  • Calcite

    Good changes andharshchemicals.

    Impregnated To improve overallappearance and color CommonlyVeryGood toGood

    Avoidsuddentemperaturechanges andharshchemicals.

    Luster Enhancement To improve overallappearance Commonly Good

    Avoidsuddentemperaturechanges andharshchemicals.

    Carnelian

    Normal.Click herefor cleaningand careinstructions.

    Orange toOrange-BrownChalcedony

    None

    Normal.Click herefor cleaningand careinstructions.

    Heated To alter color Usually Excellentto Good

    Normal.Certainstones mayfade in heator light.

    Dyed To alter color Commonly Excellentto Good

    Normal.Certainstones mayfade in heator light.

    Chalcedony(often calledagate or onyx)

    None

    Normal.Click herefor cleaningand careinstructions.

    Dyed To alter color Usually Excellentto Good

    Certainstones mayfade in heator light.

    Heated To alter color Usually Excellentto Good

    Normal.Click herefor cleaningand care

  • instructions.

    ChromeDiopside(Green)

    None

    Avoidsuddentemperaturechanges &harshchemicals.

    Chrysoberyl Alexandrite Cat's -EyeChrysoberyl Transparentgreen, yellow,brown

    None, for all varieties listed

    Normal forall varietieslisted. Clickhere forcleaningand careinstructions.

    Chrysoprase

    None

    Normal.Click herefor cleaningand careinstructions.

    Impregnated withcolorless resin

    Normal.Click herefor cleaningand careinstructions.

    Chrysolla Chrysolla inChalcedony Chrysocolla inQuartz Chrysocollaand Malachite:See Rock

    None

    Avoid heat,temperaturechanges,steaming,chemicals,ultrasoniccleaners &repolishing.

    Impregnated withcolorless plastic

    Avoid heat,temperaturechanges,steaming,chemicals,ultrasoniccleaners &repolishing.

    Citrine

    None

    Normal.Click herefor cleaningand careinstructions.

    Heated To alter color Usually Excellent

    Normal.Click herefor cleaningand care

  • instructions.

    Irradiated To alter color Unknown Excellent

    Normal.Click herefor cleaningand careinstructions.

    Coral

    Avoidchemicals,cosmetics&ultrasoniccleaners.

    Black None

    Avoidchemicals,cosmetics&ultrasoniccleaners.

    White

    None

    Avoidchemicals,cosmetics&ultrasoniccleaners.

    Bleached To alter color Commonly Good

    Avoidchemicals,cosmetics&ultrasoniccleaners.Maydiscolorover time.

    Pink, Orange,Red, Blue

    None

    Avoidchemicalsandultrasoniccleaners.

    Dyed To alter color Commonly Good

    Avoidchemicalsandultrasoniccleaners.

    Inpregnated with colorlesswax

    To improve quality ofcoral for shaping andpolishing

    Unknown Good toFair

    Avoidchemicalsandultrasoniccleaners.

  • Impregnated with plasticTo improve quality ofcoral for shaping andpolishing

    Commonly Good

    Avoidchemicalsandultrasoniccleaners.

    Luster Enhancement To improvre overallappearance Unknown Good

    Avoidchemicalsandultrasoniccleaners.

    Gold Bleached from black coral To create a color Usually VeryGood

    Avoidchemicals&ultrasoniccleaners.

    Coral, Sponge

    None

    Avoidchemicalsandultrasoniccleaners.

    Dyed To alter color Commonly Good

    Avoidchemicalsandultrasoniccleaners.

    Impregnated with plasticTo improve quality ofcoral for shaping andpolishing

    Commonly VeryGood

    Avoidchemicalsandultrasoniccleaners.

    Cubic Zirconia

    Colorless,colored None

    Normal.Click herefor cleaningand careinstructions.

    Danburite

    None

    Avoidtemperaturechanges,steaming,chemicalsandultrasoniccleaners

    Heated To alter color Unknown Excellent

    Avoidtemperaturechanges,steaming,

  • chemicalsand