Flawless 48.50Ct Excellent Fine Cut Natural Greenish Yellow Tourmaline

1113

Artikelnummer
Abmessungen (mm): 19.100 x 18.670 x 17.420mm
Gewicht (cts): 48.500
Treatment: No Treatment
Typ: Faceted
Shape: Asscher
Farben

Tourmaline is the alternate Birthstone for October, along with the Opal. The stone was first discovered by Dutch traders off the West Coast of Italy, in the late 1600's or early 1700s. The name tourmaline comes from the Sinhalese term “turmali,” which was the name given to all colored crystals on the island of Sri Lanka at that time.Tourmaline is the most colorful of all gemstones. It occurs in all colors, but pink, red, green, blue and multicolored are its most well-known

gem colors. Scientifically, tourmaline is not a single mineral, but a group of minerals related in their physical and chemical properties. The mineral Elbaite is the member of the Tourmaline group that is responsible for almost all the gem varieties. Three other members of the group - Schorl, Dravite and Liddicoatite, are seldom used as gemstonesThough Elbaite occurs in all color forms, the term Elbaite in the gemstone trade is sometimes used to describe the green form of Tourmaline.

The other color forms of Elbaite have their own variety names on the gem market. Traditional Tourmaline gemstone variety names include Rubellite, the red or pink variety, Indicolite, the blue variety, and Watermelon Tourmaline, a multicolored Tourmaline of green and red. More recently coined Tourmaline variety names include Chrome Tourmaline and Paraiba Tourmaline. A recent trend in the gem market is to prefix Tourmaline gemstones by the color designation as opposed to variety name, such that "Rubellite" is now more often called "Red Tourmaline".

Artikelnummer
Abmessungen (mm): 19.100 x 18.670 x 17.420 mm
Gewicht (cts): 48.500
Treatment: No Treatment
Typ: Faceted
Shape: Asscher
Farben

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1521 Feedback

stephbest
on 8 Jan, 2025

Positiv

Pierre arrivée rapidement et bien emballée avec certificat , Testé avec le Présidium PGTII qui confirme que c'est bien une topaze ; Sera testé ultérieurement au laboratoire de Marseille , excellent vendeur dans l'ensemble.

Certified Rare Imperial Topaz 286.35Ct Pinkish Orange Imperial Topaz Brazil

jbaker
on 28 Dec, 2024

Positiv

Beautiful stone... as described.. Packaged VERY well and received within a reasonable time frame. Will purchase from them again

Blue Sapphire 1.25Ct No Heat Top Quality Sapphire Srilanka

trinac
on 23 Dec, 2024

Negativ

Gemsofafrica always has such beautiful gems listed. I was disappointed with both this one and the Audit Sheriff. This was not a vvs gem. There’s a large inclusion that’s extremely visible in person as it faces up. I paid more than the stone was worth.