Tourmaline 13.00 ct | 18 x 13 mm Oval Cabochon | Grass Green | Minas Gerais, Brazil
Natural Grass Green Tourmaline (13.00 ct) from Minas Gerais, Brazil, cut as an elegant 18 x 13 mm oval cabochon with fresh vivid color and smooth luminous character. A distinctive gemstone for a statement ring, pendant, or a fine collection of exceptional cabochon tourmalines.
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234.00$
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Description
This 13.00 ct Tourmaline from Minas Gerais, Brazil combines a lively grass green color with an elegant 18 x 13 mm oval cabochon cut. Its impressive size, graceful proportions, and softly polished surface give the stone strong visual presence, making it especially appealing for bespoke jewelry as well as for collectors who appreciate fine cabochon tourmalines.
Grass green tourmaline is admired for its fresh, vivid, and natural appearance. The color feels bright and energetic while remaining refined and highly wearable. In cabochon form, this lively green tone often appears especially smooth and even, while the domed polished surface creates a gentle glow rather than the sharper reflections of a faceted gemstone.
The oval cabochon cut gives the stone a timeless and versatile outline. Its softly elongated shape is particularly well suited for statement rings, elegant pendants, and other custom jewelry designs where color and graceful proportions should remain the main focus. The generous 18 x 13 mm size gives the gemstone excellent presence and allows it to stand out beautifully in a carefully designed setting.
At 13.00 ct, this tourmaline offers substantial visual impact and clear collector appeal while remaining highly suitable for important jewelry creations. Originating from Minas Gerais, Brazil, one of the world’s most important gemstone regions, it combines desirable provenance with attractive color, elegant cutting, and strong overall character.
A beautiful oval cabochon tourmaline from Brazil with fresh grass green color, smooth luster, and excellent potential for statement jewelry or a refined gemstone collection.
Additional Information

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.
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 Carat | 13.00 ct / 1 pcs |
|---|---|
| Region / Mine | Minas Gerais |
| Country of Origin | Brazil |
| Saturation / Tone | Medium Deep |
|---|---|
| Shade | Grass |
| Color | Green |
| Transperency | Transparent |
|---|
| Stone Type | Type I |
|---|
| Clarity | MI |
|---|
| Dimensions 1 (L/W/H) | 17.95 x 12.90 x 7.10 mm |
|---|
Treatment
No indication of artificial enhancement.
Read more about common gemstone treatments →
