2.76ct solid australian dark opal rainbow fire lightning ridge australia opal galaxy xx1918 1
2.76ct solid australian dark opal rainbow fire lightning ridge australia opal galaxy xx1918 4
2.76ct solid australian dark opal rainbow fire lightning ridge australia opal galaxy xx1918 5
2.76ct solid australian dark opal rainbow fire lightning ridge australia opal galaxy xx1918 3
2.76ct solid australian dark opal rainbow fire lightning ridge australia opal galaxy xx1918 2

This exceptional 2.76 carat natural solid dark opal from Lightning Ridge showcases a complete rainbow spectrum of fire that captivates from every angle. Measuring 11.1 × 9.7 × 3.7 mm, this expertly polished oval cabochon displays intense flashes of red, cyan, blue, green, orange, yellow, and pink dancing across its dark body tone in mesmerizing patterns.

Lightning Ridge opals command worldwide recognition for their exceptional quality and rarity. This untreated solid opal demonstrates why collectors and jewelry designers prize Australian opals above all others. The broad flash pattern creates dramatic color play that shifts with movement, revealing new dimensions of fire with each viewing angle. Bold red flashes intermingle with electric cyan and emerald green, while touches of pink and orange add warmth to the vibrant display.

The classic oval cabochon shape makes this gemstone versatile for mounting in gold, platinum, or silver settings. Jewelry artisans appreciate the balanced proportions that suit bezel settings for modern designs or prong mountings for vintage inspired creations. The 3.7 mm profile provides ideal presence for statement rings, while the substantial carat weight ensures this dark opal becomes the centerpiece of any jewelry design. Consider this gemstone for a memorable engagement ring that breaks from traditional diamonds, or as a pendant that captures light and attention.

As the October birthstone, this dark opal carries deep symbolism for those born in autumn, representing hope, creativity, and emotional depth. The complete rainbow spectrum displayed in this specimen makes it especially meaningful, as traditional lore associates opals with good fortune and positive energy. Collectors recognize that Lightning Ridge continues producing fewer world class specimens each year, making natural opals of this quality increasingly valuable additions to gem portfolios.

This authentic solid dark opal is 100 percent natural with no treatments, doublets, or triplets. The intense rainbow fire and excellent color coverage make this a rare find for serious collectors and those seeking distinctive jewelry centerpieces.

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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2.76ct Dark Opal Rainbow fire

US$4,260

In stock

Details

Dimension:

11.1 x 9.7 x 3.7mm

Weight:

2.76ct

Type:

Natural Solid Untreated Dark Opal

Source:

Lightning Ridge, NSW, Australia

Sku:

XX1918

This exceptional 2.76 carat natural solid dark opal from Lightning Ridge showcases a complete rainbow spectrum of fire that captivates from every angle. Measuring 11.1 × 9.7 × 3.7 mm, this expertly polished oval cabochon displays intense flashes of red, cyan, blue, green, orange, yellow, and pink dancing across its dark body tone in mesmerizing patterns.

Lightning Ridge opals command worldwide recognition for their exceptional quality and rarity. This untreated solid opal demonstrates why collectors and jewelry designers prize Australian opals above all others. The broad flash pattern creates dramatic color play that shifts with movement, revealing new dimensions of fire with each viewing angle. Bold red flashes intermingle with electric cyan and emerald green, while touches of pink and orange add warmth to the vibrant display.

The classic oval cabochon shape makes this gemstone versatile for mounting in gold, platinum, or silver settings. Jewelry artisans appreciate the balanced proportions that suit bezel settings for modern designs or prong mountings for vintage inspired creations. The 3.7 mm profile provides ideal presence for statement rings, while the substantial carat weight ensures this dark opal becomes the centerpiece of any jewelry design. Consider this gemstone for a memorable engagement ring that breaks from traditional diamonds, or as a pendant that captures light and attention.

As the October birthstone, this dark opal carries deep symbolism for those born in autumn, representing hope, creativity, and emotional depth. The complete rainbow spectrum displayed in this specimen makes it especially meaningful, as traditional lore associates opals with good fortune and positive energy. Collectors recognize that Lightning Ridge continues producing fewer world class specimens each year, making natural opals of this quality increasingly valuable additions to gem portfolios.

This authentic solid dark opal is 100 percent natural with no treatments, doublets, or triplets. The intense rainbow fire and excellent color coverage make this a rare find for serious collectors and those seeking distinctive jewelry centerpieces.

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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