Tourmaline 3.43 ct | Oval | Lime Green | Rubaya, Congo

SKU: TOS215 Category: Tag:

Natural Lime Green Tourmaline (3.43 ct) from Rubaya, Congo, cut in an elegant oval shape with fresh vivid color and lively natural presence. A distinctive gemstone for a ring, pendant, or a fine collection of attractive green tourmalines.

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Description

This 3.43 ct Tourmaline from Rubaya, Congo combines an elegant oval cut with an attractive lime green color. Its balanced size, refined proportions, and lively natural character make it an appealing gemstone for fine jewelry as well as for collectors who appreciate distinctive green tourmalines with individuality.

Lime green tourmaline is admired for its bright, fresh, and energetic appearance. The color feels vivid and modern while remaining elegant and highly wearable. Its lively green tone gives the stone a vibrant look that stands out beautifully in jewelry while still maintaining refinement and versatility.

The oval cut enhances the gemstone’s timeless appeal. Its graceful and versatile outline is especially well suited for rings, pendants, and other bespoke jewelry designs where the stone should remain the focal point. Oval gemstones offer an excellent balance between softness and presence, making them suitable for both classic and contemporary settings.

At 3.43 ct, this tourmaline offers very good visual presence while remaining highly wearable in fine jewelry. Originating from Rubaya, Congo, it combines attractive provenance with elegant cutting and a vivid lime green color.

A beautiful oval tourmaline from Rubaya with fresh lime green color, elegant proportions, 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 Carat3.43 ct / 1 pcs
Region / MineRubaya
Country of OriginCongo
Saturation / ToneLight
ShadeLime
ColorGreen
TransperencyTransparent
Stone TypeType I
ClarityEC
Dimensions 1 (L/W/H)9.60 x 8.40 x 6.20 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