Tourmaline 10.74 ct | Cushion | Bluish Green | Kunar, Afghanistan

SKU: TOS308 Category: Tag: Est. Retail Value: USD $5200

Natural Bluish Green Tourmaline (10.74 ct) from Kunar, Afghanistan, cut in a refined cushion shape with vivid color and impressive presence. A remarkable gemstone for a statement ring, pendant, or a fine collection of exceptional tourmalines.

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Description

This 10.74 ct Tourmaline from Kunar, Afghanistan combines impressive size, an elegant cushion cut, and an attractive bluish green color. With its lively appearance and strong natural presence, it is a gemstone well suited for high-quality bespoke jewelry as well as for collectors seeking fine tourmalines with individuality and character.

Bluish green tourmaline is especially appreciated for its refined balance between fresh green and cool blue undertones. This color combination gives the stone a sophisticated and modern look while maintaining the natural elegance for which fine tourmaline is valued. Depending on the lighting, the gem may appear more vividly green or show a cooler bluish nuance, adding depth and visual interest.

The cushion cut enhances the beauty of the stone with its balanced outline and softly rounded corners. This classic shape offers both timeless appeal and excellent versatility in jewelry design. It is particularly well suited for statement rings, elegant pendants, and other custom creations where the gemstone should remain the clear focal point.

At 10.74 ct, this tourmaline has substantial size and excellent visual impact, making it especially attractive for collectors and for exceptional jewelry projects. Stones from Kunar, Afghanistan are well known among gem enthusiasts, and this example combines desirable origin with appealing color and a refined cut.

A striking cushion-cut bluish green tourmaline from Afghanistan with elegant proportions, lively color, and excellent potential for bespoke jewelry or a fine 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 Carat10.74 ct / 1 pcs
Region / MineKunar
Country of OriginAfghanistan
Saturation / ToneRich
ShadeBluish
ColorGreen
TransperencyTransparent
Stone TypeType I
ClarityEC
Dimensions 1 (L/W/H)14.10 x 10.90 x 8.70 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