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This natural solid Australian black opal gemstone displays intense electric blue fire with vivid royal blue, indigo, violet, and subtle green flashes across a polished oval cabochon. Its deep body color and exceptional saturation create a dramatic appearance, making it ideal for an opal ring, opal pendant, opal necklace, or fine custom jewelry as a premium center stone.

Jewelry Use

This 3ct oval cabochon is ideal for an opal ring, opal pendant, or bespoke jewelry design. Its balanced proportions and rich electric blue color create an elegant center stone, while the vibrant play of color provides striking visual impact from every angle.

October Birthstone

Black opal is the premium October birthstone, admired for its natural play of color and rarity. Australian black opals from Lightning Ridge are highly prized by collectors and jewelry designers, making them an exceptional birthday gift, anniversary gift, or heirloom gemstone.

Authenticity

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

About Lightning Ridge Black Opal

This opal is sourced from Mulga, Lightning Ridge, Australia, the world’s most famous black opal field. Renowned for producing gemstones with deep body color and exceptional brilliance, Lightning Ridge opals are among the rarest and most valuable opals available, sought after by collectors and fine jewelry designers worldwide.

Learn more

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

Browse all black 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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Black Opal 3ct Electric Blue Fire

US$2,270

In stock

Details

Dimension:

11.6 x 8.8 x 4.3 mm

Weight:

3 ct

Type:

Natural Solid Untreated Black Opal

Source:

Lightning Ridge, NSW, Australia

Sku:

XX1957

Notes

Mulga Field

This natural solid Australian black opal gemstone displays intense electric blue fire with vivid royal blue, indigo, violet, and subtle green flashes across a polished oval cabochon. Its deep body color and exceptional saturation create a dramatic appearance, making it ideal for an opal ring, opal pendant, opal necklace, or fine custom jewelry as a premium center stone.

Jewelry Use

This 3ct oval cabochon is ideal for an opal ring, opal pendant, or bespoke jewelry design. Its balanced proportions and rich electric blue color create an elegant center stone, while the vibrant play of color provides striking visual impact from every angle.

October Birthstone

Black opal is the premium October birthstone, admired for its natural play of color and rarity. Australian black opals from Lightning Ridge are highly prized by collectors and jewelry designers, making them an exceptional birthday gift, anniversary gift, or heirloom gemstone.

Authenticity

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

About Lightning Ridge Black Opal

This opal is sourced from Mulga, Lightning Ridge, Australia, the world’s most famous black opal field. Renowned for producing gemstones with deep body color and exceptional brilliance, Lightning Ridge opals are among the rarest and most valuable opals available, sought after by collectors and fine jewelry designers worldwide.

Learn more

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

Browse all black 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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