Tourmaline 13.00 ct | Antique Oval | Mint Green | Rubaya, Congo (DRC)

SKU: TOS310 Category: Tag: Est. Retail Value: USD $4300

Natural Mint Green Tourmaline (13.00 ct) from Rubaya, Congo (DRC), cut in an elegant antique oval with fresh color and refined presence. A remarkable gemstone for a statement ring, pendant, or a fine collection of distinctive green tourmalines.

Launch Shopping Event

Hurry and get discounts for the Launch Event of the Shop Launch up to 5%

Sale_coupon_5

2,145.00$

1 in stock

0 People watching this product now!

Payment Methods:

Description

This 13.00 ct Tourmaline from Rubaya, Congo (DRC) combines a refreshing mint green color with the classic elegance of an antique oval cut. With its impressive size, lively appearance, and refined shape, it is a gemstone of strong visual appeal that suits both exceptional jewelry and a carefully selected fine gem collection.

Mint green tourmaline is especially admired for its fresh, bright, and sophisticated character. The color feels light and vivid at the same time, offering a refined alternative to darker green gemstones. Its lively green tone gives the stone a clean and elegant look that works beautifully in both modern and timeless jewelry designs.

The antique oval cut adds further charm and individuality. Its elongated outline gives the gemstone an elegant presence, while the cut style brings a more classic and distinctive feel than a standard oval. This makes the stone particularly well suited for statement rings, refined pendants, or bespoke jewelry where a larger center stone should remain the clear focal point.

At 13.00 ct, this tourmaline has a substantial size with excellent presence, making it especially attractive for collectors, jewelers, and clients seeking a gemstone with both beauty and impact. Originating from Rubaya in Congo (DRC), it combines desirable provenance with a graceful cut and an appealing mint green color.

A striking antique oval mint green tourmaline from Rubaya with elegant proportions, fresh color, and outstanding 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 Carat13.00 ct / 1 pcs
Region / MineRubaya
Country of OriginCongo
Saturation / ToneLight
ShadeMint
ColorGreen
TransperencyTransparent
Stone TypeType I
ClarityEC
Dimensions 1 (L/W/H)18.00 x 12.15 x 8.00 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