Tourmaline 4.34 ct | Emerald Cut | Mint Green | Rubaya, Congo

SKU: TOS195 Category: Tag: Est. Retail Value: USD $1550

Natural Mint Green Tourmaline (4.34 ct) from Rubaya, Congo, cut in an elegant emerald cut with fresh color and refined brilliance. A distinctive gemstone for a ring, pendant, or a fine collection of exceptional green tourmalines.

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Description

This 4.34 ct Tourmaline from Rubaya, Congo combines a fresh mint green color with the refined geometry of an emerald cut. Its attractive size, elegant proportions, and lively natural character make it an appealing gemstone for bespoke jewelry as well as for collectors who appreciate distinctive green tourmalines with individuality.

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

The emerald cut enhances the gemstone’s elegant structure with crisp lines and a balanced outline. This cut gives the stone a polished, architectural appearance and allows its color and natural character to remain the main focus. It is particularly well suited for statement rings, refined pendants, and custom jewelry designs where a well-proportioned center stone should stand out with quiet confidence.

At 4.34 ct, this tourmaline offers excellent visual presence while remaining highly wearable in fine jewelry. Originating from Rubaya, Congo, it combines attractive provenance with elegant cutting and a beautiful mint green color.

A beautiful emerald-cut mint green tourmaline from Rubaya with fresh natural color, refined structure, and excellent potential for bespoke 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 Carat4.34 ct / 1 pcs
Country of OriginCongo
Region / MineRubaya
Saturation / ToneRich
ShadeMint
ColorGreen
TransperencyTransparent
Stone TypeType I
ClarityEC
Dimensions 1 (L/W/H)12.70 x 6.70 x 5.90 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