Tourmaline Pair 24.18 ct | Crystal Slice | Bi-Color | Ibity, Madagascar

SKU: TOP048 Category: Tag: Est. Retail Value: USD $360

Natural bi-color Tourmaline Pair (24.18 ct total) from Ibity, Madagascar, presented as striking crystal slices with vivid natural zoning and an organic, contemporary character. An exceptional pair for earrings, a toi et moi design, or distinctive custom jewelry with individuality and gemstone presence.

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Description

This 24.18 ct Tourmaline Pair from Ibity, Madagascar stands out through its impressive size, natural bi-color appearance, and unusual crystal slice cut. Rather than aiming for a traditional faceted look, these stones preserve more of the original character of the rough, showcasing the beauty of natural growth, internal structure, and color transition in a highly expressive way.

The bi-color zoning gives this pair its special appeal. Tourmalines are admired for their wide range of colors, and stones showing more than one color in a single gem are especially attractive for unique jewelry concepts. In crystal slices, this natural color play becomes even more visible, creating a lively and individual look that cannot be replicated by standard calibrated stones.

With their matching overall style, these tourmalines are well suited for earrings, artistic toi et moi rings, or other custom two-stone designs. They can also inspire more creative high-jewelry concepts where organic form, transparency, and natural structure are part of the design language. Their slice format makes them particularly appealing for jewelers and designers looking for something less conventional and more distinctive.

Originating from Ibity, Madagascar, this pair combines a sought-after gemstone source with an expressive cut style and strong visual individuality. A remarkable tourmaline pair for bespoke jewelry, modern design work, or collectors who appreciate natural character and uncommon gem forms.

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 Carat24.18 ct / 2 pcs
Region / MineIbity
Country of OriginMadagascar
Saturation / ToneRich
ShadeVarious
ColorBicolor
TransperencyTransparent
Stone TypeType I
ClarityMI
Dimensions 1 (L/W/H)19.20 x15.60 x 4.00 mm
Dimension 2 (L/W/H)19.30 x15.70 x 4.40 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