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Double-sided Australian dark opal from Lightning Ridge 1.78ct featuring a polished oval cabochon cut. Displays vivid fuchsia pink, cyan, green, and blue multicolor fire play visible across both sides, offering exceptional visual performance from all angles. Ideal for custom ring designs, open-back bezel pendants, or a premium October birthstone jewelry gift.

Jewelry Use

This natural loose cabochon features an ideal profile for fine jewelry settings. The strong multicolor brightness and vivid color play ensure it remains the dominant center stone for custom rings and pendants.

October Birthstone

Opal is globally recognized as the traditional October birthstone, celebrated for its unique play-of-color properties. High-grade natural opals featuring rare colors—like fuchsia pink and multi-hued fire—are highly sought-after investment pieces for custom birthday jewelry, luxury anniversary designs, and bespoke milestone gifts.

About Lightning Ridge Opal

Located in New South Wales, Australia, Lightning Ridge is the world's premier geographical source for authentic black and dark opals. The unique ironstone and sandstone geological formations of this region produce solid gemstones known for unparalleled color intensity, dark body tones, and high-contrast fire patterns. Australian opals mined from this specific area are globally regarded as the highest standard of investment-grade opal material.

Authenticity & Assurance

100% natural solid Australian Dark opal. No treatments. No doublets or triplets. Not smoked Ethiopian opal.
Certificate available upon request. Authentic & Trusted Opal Certification by Opal Galaxy

Learn More

Lightning Ridge Black Opal Complete Guide | What Makes an Opal Valuable | Which Star Signs Should Wear Opal? | Australian Opal Buying Guide

Browse all dark opals collection or contact us with questions.

 

Shipping Updates - March 2026

Latest international delivery information from Australia Post and FedEx.

USA Tariff 

USA customers do not need to pay any tariffs on their purchase. Opal Galaxy covers all tariff charges to the USA, with no additional government fees added after checkout.

Delivery Status

USA: No delays
Asia: No delays
UK: Minor delays possible (Complimentary EMS Express upgrade)
Europe: Minor delays possible (Complimentary EMS Express upgrade)
Middle East: Shipping temporarily suspended - Please contact us to discuss shipping arrangements before purchase.

Shipping Information

All shipping includes complimentary insurance.

Registered Shipping $15 under $200
Free Registered Shipping over $201
Free Worldwide EMS Express Shipping over $1000
Free Worldwide FedEx Shipping over $4000
Extra Cost $25 EMS Shipping Upgrade under $200
Extra Cost $10 EMS Shipping Upgrade under $999
Extra Cost $100 FedEx Shipping Upgrade under $3999

Please view our Shipping Policy page for more information.

7 day return and refund policy.
Please view our Return and Refund page for more information.

We offer a lifetime guarantee for natural cracks that may form in our opals.
There is a very low chance that this can happen, however occasionally it might.
Our guarantee excludes any opals sold with existing fractures.
Please view our Terms and Conditions.

Caring for Your Australian Opal

Opal Jewelry

Important: Opals Are Fragile Gemstones
Opals are softer than sapphires, rubies, or diamonds and will crack or chip if struck hard against solid surfaces.

Always remove opal jewelry before:
Sports or physical activities
Manual labor, gardening, or gym workouts
Household tasks where impact is possible (lifting, moving furniture, etc.)

Even a minor knock during everyday wear can cause permanent damage. Treat opals as delicate gemstones, not everyday workwear.

Cleaning Your Opal

Clean with warm water and mild soap. Avoid harsh chemicals like bleach, ammonia, or chlorine. Light exposure to hand soap or dishwashing detergent is safe.

Storage

Store opal jewelry separately from harder gemstones (diamonds, sapphires) to prevent scratching.

Solid Natural Opals

(Black, Boulder, Crystal, White Opal)
Natural solid opals are stable and won't change color or crack from water, humidity, or temperature changes. They are safe to submerge in water and can be worn daily, provided they are protected from physical impact. Solid opals are a single piece of gemstone with no artificial backing, making them ideal for heirloom quality jewelry when handled with care.

Opal Doublets

Opal doublets consist of a thin slice of natural opal bonded to a dark backing. Do not submerge doublets in water as prolonged exposure can weaken the adhesive bond and cause separation or cloudiness. Remove doublet jewelry before swimming, bathing, or washing dishes. Clean with a damp cloth only; do not soak or use ultrasonic cleaners.

Like all opals, doublets are fragile and must be protected from impact.

Not sure which type you have? Solid opals show natural color throughout the stone. Doublets have a visible dark backing layer when viewed from the side.

Add to Wishlist

Dark Opal 1.78 ct Vivid Fuchsia Pink

AU$3,098

In stock

Details

Dimension:

9.2 x 7.2 x 4.5 mm

Weight:

1.78 ct

Type:

Natural Solid Untreated Dark Opal

Source:

Lightning Ridge, NSW, Australia

Sku:

XX1939

Double-sided Australian dark opal from Lightning Ridge 1.78ct featuring a polished oval cabochon cut. Displays vivid fuchsia pink, cyan, green, and blue multicolor fire play visible across both sides, offering exceptional visual performance from all angles. Ideal for custom ring designs, open-back bezel pendants, or a premium October birthstone jewelry gift.

Jewelry Use

This natural loose cabochon features an ideal profile for fine jewelry settings. The strong multicolor brightness and vivid color play ensure it remains the dominant center stone for custom rings and pendants.

October Birthstone

Opal is globally recognized as the traditional October birthstone, celebrated for its unique play-of-color properties. High-grade natural opals featuring rare colors—like fuchsia pink and multi-hued fire—are highly sought-after investment pieces for custom birthday jewelry, luxury anniversary designs, and bespoke milestone gifts.

About Lightning Ridge Opal

Located in New South Wales, Australia, Lightning Ridge is the world's premier geographical source for authentic black and dark opals. The unique ironstone and sandstone geological formations of this region produce solid gemstones known for unparalleled color intensity, dark body tones, and high-contrast fire patterns. Australian opals mined from this specific area are globally regarded as the highest standard of investment-grade opal material.

Authenticity & Assurance

100% natural solid Australian Dark opal. No treatments. No doublets or triplets. Not smoked Ethiopian opal.
Certificate available upon request. Authentic & Trusted Opal Certification by Opal Galaxy

Learn More

Lightning Ridge Black Opal Complete Guide | What Makes an Opal Valuable | Which Star Signs Should Wear Opal? | Australian Opal Buying Guide

Browse all dark opals collection or contact us with questions.

 

Shipping Updates - March 2026

Latest international delivery information from Australia Post and FedEx.

USA Tariff 

USA customers do not need to pay any tariffs on their purchase. Opal Galaxy covers all tariff charges to the USA, with no additional government fees added after checkout.

Delivery Status

USA: No delays
Asia: No delays
UK: Minor delays possible (Complimentary EMS Express upgrade)
Europe: Minor delays possible (Complimentary EMS Express upgrade)
Middle East: Shipping temporarily suspended - Please contact us to discuss shipping arrangements before purchase.

Shipping Information

All shipping includes complimentary insurance.

Registered Shipping $15 under $200
Free Registered Shipping over $201
Free Worldwide EMS Express Shipping over $1000
Free Worldwide FedEx Shipping over $4000
Extra Cost $25 EMS Shipping Upgrade under $200
Extra Cost $10 EMS Shipping Upgrade under $999
Extra Cost $100 FedEx Shipping Upgrade under $3999

Please view our Shipping Policy page for more information.

7 day return and refund policy.
Please view our Return and Refund page for more information.

We offer a lifetime guarantee for natural cracks that may form in our opals. There is a very low chance that this can happen, however occasionally it might. Our guarantee excludes any opals sold with existing fractures.
Please view our Terms and Conditions.

Caring for Your Australian Opal

Opal Jewelry

Important: Opals Are Fragile Gemstones
Opals are softer than sapphires, rubies, or diamonds and will crack or chip if struck hard against solid surfaces.

Always remove opal jewelry before:
Sports or physical activities
Manual labor, gardening, or gym workouts
Household tasks where impact is possible (lifting, moving furniture, etc.)

Even a minor knock during everyday wear can cause permanent damage. Treat opals as delicate gemstones, not everyday workwear.

Cleaning Your Opal

Clean with warm water and mild soap. Avoid harsh chemicals like bleach, ammonia, or chlorine. Light exposure to hand soap or dishwashing detergent is safe.

Storage

Store opal jewelry separately from harder gemstones (diamonds, sapphires) to prevent scratching.

Solid Natural Opals

(Black, Boulder, Crystal, White Opal)
Natural solid opals are stable and won't change color or crack from water, humidity, or temperature changes. They are safe to submerge in water and can be worn daily, provided they are protected from physical impact. Solid opals are a single piece of gemstone with no artificial backing, making them ideal for heirloom quality jewelry when handled with care.

Opal Doublets

Opal doublets consist of a thin slice of natural opal bonded to a dark backing. Do not submerge doublets in water as prolonged exposure can weaken the adhesive bond and cause separation or cloudiness. Remove doublet jewelry before swimming, bathing, or washing dishes. Clean with a damp cloth only; do not soak or use ultrasonic cleaners.

Like all opals, doublets are fragile and must be protected from impact.

Not sure which type you have? Solid opals show natural color throughout the stone. Doublets have a visible dark backing layer when viewed from the side.

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