# Huge 18.43 Ct Untreated Natural Australian Double Fire Opal AAAAA

## Buy Huge 18.43 Carat Natural Australian Double Fire Opal Gemstone Online – AAAAA Grade | Venus Gems

Buy this breathtaking **18.43 carat natural Australian Double Fire Opal** from **Venus Gems**. Sourced directly from **Australia**, this massive 100% untreated loose Australian fire opal displays vivid **double play-of-colour** – fire that blazes brilliantly from both face-up and face-down orientations. Graded **AAAAA (Five-A)**, the highest premium grade, this 18+ carat genuine Australian fire opal for sale is an unparalleled museum, collector, and investment-grade treasure — the pinnacle of what natural Double Fire Opal can be, and one of the largest premium Australian fire opals available to buy online.

### ✨ Gemstone Specifications

**Gemstone Name**

Natural Australian Double Fire Opal

**Weight (Carats)**

18.43 Carats

**Grade**

AAAAA – Five-A (Highest Grade)

**Type**

Double Fire Opal – Play-of-Colour from Both Sides

**Shape / Cut**

Oval Cabochon

**Phenomenon**

Vivid Double Play-of-Colour (Fire)

**Transparency**

Translucent to Semi-Transparent

**Origin**

Australia

**Treatment**

Untreated – 100% Natural

**Rarity**

HUGE – Exceptional Museum / Investment Grade

**Pieces**

1 Piece (Loose Gemstone)

### 🔥 What is a Double Fire Opal?

A **Double Fire Opal** is a rare variety of Australian fire opal that displays vibrant play-of-colour from _both the top and bottom_ of the stone — unlike standard opals which show fire only from the face-up side. At over 18 carats with AAAAA grade, this is an extraordinarily rare natural opal gemstone of the highest calibre.

### 🌏 Why Australian Fire Opal is the World’s Finest

**Origin**

Australia – Lightning Ridge, Coober Pedy & Queensland

**Why Superior**

Australia produces 95%+ of the world’s precious opal supply

**Fire Intensity**

Vivid, broad-flash play-of-colour across the full spectrum

**Untreated**

100% natural – no smoke, sugar, or resin treatment

**Collector Value**

Exceptional – One of the Largest AAAAA Double Fire Opals Available

### 💎 Astrological & Healing Significance of Opal

**Ruling Planet**

Venus (Shukra)

**Recommended For**

Taurus (Vrishabh) & Libra (Tula) — Primary

**Best Day to Wear**

Friday (Shukravar)

**Recommended Metal**

Silver or White Gold

**Finger to Wear**

Index or Middle Finger, Right Hand

**Benefits**

Love, creativity, luxury, artistic talent, emotional balance

### 💡 Benefits of Wearing Natural Australian Opal

-   **Venus Strengthening:** Enhances love, beauty, relationships, and material prosperity
-   **Creativity & Arts:** Boosts creative expression, artistic talent, and imagination
-   **Emotional Healing:** Promotes emotional stability, optimism, and joy
-   **Luxury & Abundance:** Attracts wealth, comfort, and fine living
-   **Confidence:** Enhances charm, charisma, and personal magnetism
-   **Collector Value:** Pinnacle collector stone – 18+ carat AAAAA Double Fire Opal

### 👆 How to Wear Australian Fire Opal

1.  **Purification:** Soak in clean water or rose water for 20–30 minutes on a Friday morning.
2.  **Rinse & Dry:** Rinse gently with clean water and wipe dry.
3.  **Setting:** Set in silver or white gold so the stone touches the skin directly.
4.  **Finger:** Wear on the index or middle finger of the right hand.

### ✅ Why Buy Australian Fire Opal from Venus Gems?

-   ✔ AAAAA Grade – Highest premium quality natural Australian fire opal
-   ✔ 100% Untreated – No smoke, sugar, resin, or any artificial treatment
-   ✔ Double Fire – Rare play-of-colour from both sides of the stone
-   ✔ Free Insured Shipping Pan India | International Shipping Available
-   ✔ Free Gemological Consultation with every purchase

### 📦 What You Receive

-   1 × Natural Australian Double Fire Opal AAAAA (18.43 Carats)
-   Premium Venus Gems Packaging
-   Gemstone Information Card

_⚠️ Opal is a delicate gemstone – avoid harsh chemicals, ultrasonic cleaners, and prolonged direct sunlight._

## Details

- **Price:** 171100.0 INR
- **Vendor:** Venus Gems
- **Type:** Jewelry > Loose Gemstones > Opal > Opal Stone > Australian
- **Tags:** australia-opal, australian-fire-opal, australian-opal, double-fire-opal, double-fire-opal-stone, fire-opal, genuine-opal, natural-australian-fire-opal, natural-fire-opal, opal, opal-gemstone, premium-fire-opal, premium-fire-opal-gemstone, premium-opal, untreated-australian-opal, untreated-opal

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 171100.00 INR | In stock |

## Images

- Huge 18.43 Ct Untreated Natural Australian Double Fire Opal AAAAA - Venus Gems

## Additional Information

- **cut:** excellent
- **clarity:** opaque
- **carat weight:** 18.43
- **Material:** Opal
- **Origin:** Australian
- **Treatment:** No Treatment
- **Stone shape:** Cushion
- **color:** white
- **Google: Age Group:** adult

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> Source: [Venus Gems](https://venusgems.com/products/huge-18-45-ct-untreated-natural-australian-double-fire-opal-aaaaa)
> Updated: 2026-09-11