Rubellite 19.64 ct | 20 x 20 mm Heart shape Cabochon | Violet Red | Ibity, Madagascar

SKU: TOS288 Category: Tag: Est. Retail Value: USD $900

Natural Rubellite (19.64 ct) from Ibity, Madagascar, cut as an impressive 20 x 20 mm heart shape cabochon with vivid violet red color and smooth luminous character. A remarkable gemstone for a statement ring, pendant, or a fine collection of exceptional rubellites.

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Description

This 19.64 ct Rubellite from Ibity, Madagascar combines impressive size, an expressive heart shape cabochon cut, and a vivid violet red color. Measuring 20 x 20 mm, it has outstanding presence and a strong visual identity, making it especially appealing for important bespoke jewelry as well as for collectors who appreciate exceptional rubellites with individuality.

Rubellite is one of the most sought-after members of the tourmaline family, admired for its vivid pink to red color range and strong natural character. This stone shows a beautiful violet red tone that combines richness, liveliness, and sophistication. In cabochon form, the color often appears especially smooth and concentrated, while the polished domed surface creates a gentle glow rather than the sharper reflections of a faceted gemstone.

The heart shape cabochon cut gives this gem a particularly distinctive personality. Its symbolic and elegant outline makes it especially suitable for jewelry designs with emotional significance, while the cabochon finish adds a softer and more organic look. With its generous 20 x 20 mm dimensions, the stone is particularly well suited for statement pendants, bold rings, and one-of-a-kind custom jewelry where color, shape, and size should remain the clear focal point.

At 19.64 ct, this rubellite offers substantial visual impact and clear collector appeal. Originating from Ibity, Madagascar, it combines notable provenance with impressive scale, unusual cutting, and vivid color, making it attractive not only for important jewelry creations but also for a refined gemstone collection.

A remarkable heart shape cabochon rubellite from Madagascar with vivid violet red color, exceptional size, and outstanding potential for statement 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 Carat19.64 ct / 1 pcs
Region / MineIbity
Country of OriginMadagascar
Saturation / ToneMedium
ShadeViolet
ColorRed
TransperencyTransparent
Stone TypeType III
ClarityMI
Dimensions 1 (L/W/H)19.80 x 19.80 x 7.10 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