Padparadscha Sapphire Gemstone & Information | Gemopedia by JTV | Gemopedia™

Padparadscha Sapphire

While sapphires have mesmerized gem and jewelry connoisseurs since the dawn of time, one fancy sapphire variety has a distinct allure and prestige all its own--the mysterious and coveted padparadscha sapphire. The padparadscha derives its name from the Sanskrit "padma ranga" meaning "lotus color," for its resemblance to the beautiful and famed lotus flowers of Sri Lanka, where the gem was originally found. Padparadscha sapphires traditionally must combine elements of pink and orange in one gem to rightly claim their padparadscha title, though the coloration requirements are highly disputed.

Colors

Intense Light To Medium Pinkish Orange To Orange-Pink

  • Padparadscha-sapphire classification

    CommonName
    Padparadscha Sapphire
    Species
    Corundum
    Variety
    Padparadscha Sapphire
    Colors
    Intense Light To Medium Pinkish Orange To Orange-Pink
    AlternateNames
    GemstoneGroups
    KeySeparations
    RI, birefringence, pleochroism, magnification, color and spectra
    ClassificationComments
    Padparadscha means lotus flower and this where this variety gets its name.
  • Padparadscha-sapphire chemistry & crystallography

    ChemicalName
    aluminum oxide
    ChemicalFormula
    Al2O3
    Synthesis
    CrystalSystem
    Trigonal
    ChemistryClassification
    Oxide
    Nature
    Natural
    Crystallinity
    Crystalline
    ChemistryComments
  • Padparadscha-sapphire optical properties

    Transparency
    Transparent - Opaque
    Dispersion
    Strength: weak fire Value: 0.018
    OpticalComments
    RefractiveIndex
    1.762-1.77
    Tolerance:(+0.009/-0.005)
    Birefringence
    0.008-0.01
    OpticCharacter
    Uniaxial
    OpticSign
    Negative
    PolariscopeReaction
    Doubly Refractive (DR)
    Fluorescence
    SWUV: Inert
    LWUV: Orange:Inert to strong orangy red
    CCFReaction
    Pleochroism
    Dichroic, strong yellowish orange and colorless
  • Padparadscha-sapphire characteristic physical properties

    Hardness
    9
    CharacteristicComments
    Streak
    White
    SpecificGravity
    3.95-4.1 Typical:4
    Toughness
    Excellent
    Inclusions
    This stone has type II clarity and sometimes will have silk, rutile, boehmite or zircon crystals and fingerprint inclusions. Stones can show hexagonal growth and color zoning. Untreated stones will usually have inclusions intact. Heat treated stones will have fracture halos or snowballs around crystal inclusions( untreated stones from magmatic areas might also show these characteristics). Silk will be broken and might show sintered areas especially around the girdle.
    Luster
    SubAdamantine
    Stability
    Very Good
    Fracture
    Conchoidal
    Cleavage
    None