Australian Fire Opal Stone 4.92 Carat Oval Mixed Shape
This Certified Natural Australian Fire Opal Stone 4.92 Carat (5.41 Ratti) Oval Mixed Shape has 15.50mm x 11.50mm x 4.50mm dimensions, creamish-white body with rainbow play-of-colour, Australia origin, Unheated and Untreated status, and an ISO-accredited laboratory report. Its smooth oval mixed shape and natural colour flashes make it suitable as a loose gemstone for ring setting, pendant setting, jewellery use, collection, October birthstone-style use, and traditional Opal Ratna / Shukra use when advised.
Opal is hydrated amorphous silica, known for its play-of-colour: the moving flashes of colour seen when light interacts with tiny silica spheres inside the gemstone. Australian Fire Opal is especially valued by buyers because each stone has its own body tone, colour pattern, brightness, and face-up personality, so the actual photos and video should always be checked carefully before selection.
Gemstone Details
| Gemstone | Opal Stone |
|---|---|
| Indian / Trade Name | Doodhiya Patthar / Opal Ratna |
| Conclusion | Natural Certified Australian Fire Opal Stone |
| Mineral Family / Composition | Hydrated Amorphous Silica (SiO2.nH2O) |
| Opal Type | Natural Australian Fire Opal |
| Origin | Australia |
| Treatment | Unheated and Untreated |
| Weight | 4.92 Carat (5.41 Ratti) |
| Dimensions | 15.50mm x 11.50mm x 4.50mm |
| Shape / Cut | Oval Mixed Shape |
| Colour / Body Tone | Creamish-white body with rainbow play-of-colour |
| Report | ISO-accredited laboratory report included |
| Hardness | 5-6.5 on the Mohs scale |
| Refractive Index | 1.37-1.47 |
| Specific Gravity | About 2.15 |
Australian Fire Opal value depends on the brightness, distribution, and colours of its play-of-colour, along with body tone, clarity, dimensions, cut, and whether the stone is natural opal, boulder opal, matrix opal, or a disclosed doublet/triplet. A white Australian Fire Opal should be selected by its actual face-up colour play and visible condition, especially checking for cracks, crazing, heavy pits, and dull or lifeless areas. To compare more options, visit our Opal Stones collection.
In traditional Indian astrology, Opal (Doodhiya Patthar / Opal Ratna) is associated with Venus (Shukra) and is often selected for beauty, creativity, harmony, luxury, artistic expression, and relationship-related symbolism when advised. These are traditional associations, not guaranteed results, so personal suitability should be checked with a trusted astrologer. For more selection guidance, read our Opal Doodhiya Patthar buying guide.
For care, clean Australian Fire Opal gently with warm soapy water and a soft cloth, then dry it carefully. Avoid ultrasonic cleaning, steam cleaning, high heat, sudden temperature changes, harsh chemicals, perfume, strong detergents, hard impact, rough daily wear, and storage beside harder gemstones. For ring use, choose a protective setting and remove the jewellery during gym, sports, heavy work, or rough handling.
