Description
Opal is the world's most popular phenomenal gemstone, with many cultures believing it possessed supernatural origins and power. While precious opals display play-of-color, not all opals share this phenomenon — those without it are known as Common or Potch Opals. These 9mm x 7mm oval cabochons belong to a distinct category: opals exhibiting chatoyancy, a striking cat's-eye effect produced when light reflects off needle-like inclusions within the stone. The result is a luminous, shifting band of light that moves across the surface as the viewing angle changes.
Available in three natural color variations — Gray, Orange, and Silver — these cabochons are untreated, making them an excellent choice for jewelers seeking authentic, unenhanced stones. Please note that color varies within each selection. As a closeout offering, availability is limited.
Opal is the birthstone for October and holds special meaning in a wide range of cultural traditions, making these stones well-suited for meaningful, custom jewelry work.
Care: Opal is an extremely soft and porous gemstone that can craze from loss of moisture. Clean only with warm, soapy water. Never use ultrasonic or steam cleaners.
Features
- 9mm x 7mm oval cabochon cut
- Translucent body with strong chatoyancy (cat's-eye effect)
- Three color options: Orange/orangish-brown, Gray/brownish-gray, or Silver/grayish-silver
- Color varies within each selection
- Untreated — no treatments applied
- October birthstone
- Closeout pricing — limited availability
Specifications
| Shape | Oval Cabochon |
|---|---|
| Dimensions | 9mm x 7mm |
| Phenomenon | Chatoyancy (Cat's-Eye Effect) |
| Transparency | Translucent |
| Treatment | None |
| Birthstone Month | October |
| Cleaning Method | Warm soapy water only — no ultrasonic or steam |
Available Options
| Part # | Color |
|---|---|
| 949-A35 | Gray / Brownish-Gray |
| 949-B35 | Silver / Grayish-Silver |
| 949-C35 | Orange / Orangish-Brown |
Notes
- This is a closeout item — stock is limited and may not be replenished.
- Color varies within each selection; exact appearance of individual stones may differ.
- Opal can craze if it loses moisture — store carefully and avoid prolonged exposure to dry conditions.
Specifications
- Brand
- Otto Frei
- Part #
- 949-A35
- Type
- Cabochon
- Dimensions
- 0.1 in x 0.1 in x 0.1 in
- Shape
- Oval Cabochon
- Dimensions
- 9mm x 7mm
- Phenomenon
- Chatoyancy (Cat's-Eye Effect)
- Transparency
- Translucent
- Treatment
- None
- Birthstone Month
- October
- Cleaning Method
- Warm soapy water only — no ultrasonic or steam
Cancer and Reproductive Harm. www.P65warnings.ca.gov.
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