Tourmaline Pair 100.98 ct | Crystal Slice | Bi-Color | Ibity, Madagascar

SKU: TOP042 Category: Tag:

Natural bi-color Tourmaline Pair (100.98 ct total) from Ibity, Madagascar, cut as extraordinary crystal slices with vivid natural color zoning and exceptional organic presence. A rare large-format pair for statement earrings, dramatic toi et moi designs, or bespoke jewelry that celebrates the individuality and natural beauty of tourmaline.

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Description

This 100.98 ct Tourmaline Pair from Ibity, Madagascar is an exceptional gemstone duo of remarkable size, natural beauty, and unmistakable character. Cut as crystal slices, the stones preserve much of the original crystal structure and reveal their bi-color zoning in a direct and highly expressive way. Their impressive scale and organic appearance make them especially appealing for one-of-a-kind jewelry and for collectors who appreciate unusual gem material.

Bi-color tourmalines are especially valued for the way two colors develop naturally within a single crystal, creating contrast, depth, and visual movement. In slice form, these natural transitions become even more visible, allowing the internal structure, growth features, and color distribution to play a central role in the beauty of the stones. This gives the pair an artistic, authentic look that differs clearly from standard faceted gemstones.

With a substantial total weight of 100.98 ct, this pair offers outstanding potential for bold custom jewelry concepts. It is particularly well suited for statement earrings, dramatic toi et moi rings, or other two-stone designs where natural form, transparency, and color zoning remain part of the final aesthetic. The pair can also inspire exceptional pendant or high-jewelry creations for clients seeking something rare, expressive, and truly individual.

From the well-known gem source of Ibity, Madagascar, this tourmaline pair combines sought-after origin, extraordinary size, and strong natural appeal. A remarkable bi-color tourmaline pair for bespoke jewelry, creative design work, or collectors who value authentic gemstone structure and exceptional presence.

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 Carat100.98 ct / 2 pcs
Region / MineIbity
Country of OriginMadagascar
Saturation / ToneLight
ShadeVarious
ColorBicolor
TransperencyTransparent
Stone TypeType I
ClarityMI
Dimensions 1 (L/W/H)37.30 x 32.00 x 4.00 mm
Dimension 2 (L/W/H)37.30 x 32.00 x 4.00 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