-20% Sale!

Tourmaline 3.31ct 13.5×9.8×4.5mm Natural Gemstone Africa

 6,206.00  4,965.00


Weight: 3.31ct 

Dimension: 13.5×9.8×4.5mm

Origin: Africa

Treatment: None

    • Certificate Price0
    • Shipping Method0
Product code: ak128. Category: .
Reviews (0)
  • Tourmaline Gemstone 3.31ct 


    Product Id ak128
    Price Per Carat 1500
    Weight 3.31ct
    Shape/cut Pear mixed  cut
    Colour Green
    Dimension 13.5×9.8×4.5mm
    Clarity Excellent
    Transparency Transparent
    Origin Africa
    Treatment None

    Certification: Extra 300rs Chargeable

    Payment Option: Payumoney

    Shipment Details

    Express Shipping: 3 to 4 Days 

    Economy Shipping: 7 to 14 Days 


    All Gemstones Are Natural 

    All Photos Are Of The Actual Gem For Sale

    Return Policy: 10 Days Money-Back Returns*

    Size And Weight

    Gems Are Always Weights In Carats And Cents

    One Gram = 5 Carats

    One Carats = 100 Cents

    Gems Are Always Measure In Millimeters

    Dimensions Are Measure In Lenght X Width X Height

    Additional Quantities

    Every Item Is Unique

    Every Product Having Similar And Matching Items So You Can Order Only 1 Of Each Items


    Tourmaline Gemstone 3.31ct

    Properties Of Tourmaline

    Chemical Composition: Na(Al;Li)3Al6(BO3)3Si6O18(OH)4

    Hardness: 7.0 – 7.5

    Specific Gravity (Density) : 3.06 – 3.08 

    Refractive Index: 1.623 – 1.657 

    About Tourmaline Gemstone

    Tourmaline is a group of related minerals, all having the same basic crystal structure but varying widely in chemical composition and color. The name Tourmaline is from the Singhalese word tourmaline, meaning mixed colored stones because Tourmaline is found in so many different colors it was often confused with other gem types.

    The four most common and well-known varieties of Tourmaline are Elbaite, Schorl, Dravite and Uvite and can be distinguished by their colors and transparencies. Most gem Tourmalines are the variety Elbaite.

    Elbaite is the most colorful of all gems and is available in almost all the colors of the spectrum. The most well known Elbaite gems are Achroite (colorless), bi-color (usually pink or red and green, also blue and green), Indicolite (blue), Orange, Paraiba (containing copper), Rubellite (pink to red), Siberite (lavender), Verdelite (green), Watermelon (green and pink or red) and yellow.

    Schorl is the iron rich Tourmaline that is black and opaque. Although not that popular as a gem, it is the most common of the Tourmalines in nature and is a common accessory mineral in igneous and metamorphic rocks. Even though it is opaque and black, it can be faceted into beautiful gems and was very popular in mourning jewelry during the Victorian era. It is currently regaining popularity. Schorl is also found as the black needle-like inclusions in Quartz, known as Tourmalinated Quartz.

    The two other well-known Tourmalines are Dravite and Uvite. Both are magnesium/iron rich members of the Tourmaline group. Although not nearly as well known as the many colors of Elbaite, Dravite and Uvite are becoming better known and are being collected as mineral specimens and gemstones. Dravite is usually light to dark brown, black or may also be colorless. Uvite is usually found in dark colors such green, yellowish brown, brown, red and black

  • Reviews

    There are no reviews yet, would you like to submit yours?

    Be the first to review “Tourmaline 3.31ct 13.5x9.8x4.5mm Natural Gemstone Africa”