Tourmaline 6.64 ct | Cushion | Teal Green | Kunar, Afghanistan

SKU: TOS309 Category: Tag:

Natural Teal Green Tourmaline (6.64 ct) from Kunar, Afghanistan, cut in a refined cushion shape with vivid color and elegant presence. A distinctive gemstone for a statement ring, pendant, or a fine collection of exceptional tourmalines.

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Description

This 6.64 ct Tourmaline from Kunar, Afghanistan is a striking gemstone that combines a refined cushion cut with an attractive teal green color. Its lively appearance, elegant proportions, and strong natural character make it an excellent choice for bespoke jewelry as well as for collectors who appreciate distinctive colored gemstones.

Teal green tourmaline is especially admired for its sophisticated balance between green and blue. This combination gives the stone a fresh yet deep appearance, with a color that feels both modern and timeless. Depending on the light, the gem may show subtle shifts within its teal character, adding visual interest and individuality.

The cushion cut enhances the stone’s appeal with its softly rounded corners and balanced outline. It offers a classic shape with a slightly romantic touch, while still looking clean and contemporary. This makes the gemstone particularly well suited for statement rings, elegant pendants, and other custom jewelry designs where color and presence should remain at the center of attention.

At 6.64 ct, this tourmaline has a substantial size that gives it excellent visual impact without losing wearability. Originating from Kunar, Afghanistan, it combines desirable provenance with refined cutting and an appealing teal green color that stands out from more conventional gem tones.

A beautiful cushion-cut tourmaline from Afghanistan with elegant teal green color, lively character, and excellent potential for fine jewelry or a carefully selected gemstone collection.

Additional Information

Certification Options

Every gemstone purchased from Gem Fountain includes a free Gem Fountain Gemstone Report, provided as a PDF file, documenting the key characteristics and authenticity of the stone.

For customers who require independent laboratory verification, we offer the option to add third-party gemstone reports. Upon selection, the gemstone will be submitted to the chosen accredited gemological laboratory. Estimated fees and processing times are as follows:

  • BGL – Brief Report: USD 19
    Processing time: approximately 1–2 business days
  • AIG – Brief Report: USD 38
    Processing time: approximately 7–8 business days
  • LOTUS – Soft Cover Report: USD 128
    Processing time: approximately 7–8 business days

All external reports are optional and can be selected as an add-on prior to shipment. Processing times may vary slightly depending on laboratory workload.

Shipping & Payment

All gemstones are shipped directly from Thailand, one of the world’s leading gemstone trading hubs. We deliver to almost all countries worldwide, using reliable and insured shipping partners to ensure safe and secure delivery. Each order is carefully packaged, and tracking details are provided once the shipment has been dispatched. Delivery times may vary depending on destination and local customs procedures. Any applicable duties, taxes, or import fees are the responsibility of the recipient.

We offer flexible payment options to accommodate our international clientele. Most common payment methods are accepted at checkout. Customers who choose to pay via wire transfer (Wise) receive a 5% discount, which can be selected directly during the checkout process.

Specification

Overview
Total Carat6.64 ct / 1 pcs
Region / MineKunar
Country of OriginAfghanistan
Saturation / ToneRich
ShadeTeal
ColorGreen
TransperencyTransparent
Stone TypeType I
ClarityEC
Dimensions 1 (L/W/H)13.00 x 8.80 x 7.10 mm
Untreated

No indication of artificial enhancement.

Read more about common gemstone treatments →
Refractive Index nω = 1.633–1.651 & nε = 1.615–1.630
Birefringence 0.018 – 0.021
Hardness (Mohs) 7.0 - 7.5
Gravity 3.00 - 3.10
Crystal System Trigonal
Chemical Formular Aluminium borosilicates – solid solution crystals with variable composition, Fe²⁺, Li)₃Al₆(BO₃)₃Si₆O₁₈(OH)₄, Mn, Na(Mg