Dark opal teardrop cabochon showing bright green blue and multicolor flash within a polished surface.
Dark opal teardrop angled to reveal bright green and blue flashes across the surface.
Dark opal teardrop displayed on fingers to show size shape and multicolor flash.
Dark opal teardrop side view highlighting thickness and flashes of green and blue fire.
Dark opal teardrop viewed from the edge showing internal multicolor fire.
Dark opal teardrop showing the natural back with smooth finish and muted body tone.
Dark opal teardrop face up highlighting strong green blue fire and balanced teardrop shape.

This 1.64ct natural solid dark opal, also known as semi black opal, comes directly from the world famous Lightning Ridge opal fields of Australia.
Its polished pear cabochon cut highlights a play of color that shifts between cyan, green, and blue fire, glowing against the darker body tone.
Measuring approximately 13 x 7.5 x 3 mm, this opal carries an elegant size that makes it ideal for both statement jewelry and everyday wear.

Expertly cut and polished, this Lightning Ridge dark opal is a loose stone ready to be set into fine jewelry.
Whether chosen for a custom opal engagement ring, pendant, or collector’s piece, its vibrant flashes of color add depth and brilliance to any design.
Unlike doublets or triplets, this gemstone is 100% natural and untreated, ensuring lasting value and authenticity.

Dark opals from Lightning Ridge are highly sought after for their rich body tone that enhances color play.
As the October birthstone, opal is celebrated for symbolizing hope, creativity, and passion, making this a meaningful gift or personal treasure.

This opal will arrive securely packaged in an Opal Galaxy gift box, ready for safe storage, jewelry setting, or presentation as a collector gemstone.

Read about Buying Black Opals for Investment
Watch more opals on YouTube

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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1.64ct Natural Dark Opal Bright Green Blue Cyan Fire

AU$207

In stock

Details

Dimension:

13x7.5x3 mm

Weight:

1.64 ct

Type:

Natural Solid Untreated Dark Opal

Source:

Lightning Ridge, NSW, Australia

Sku:

XX1599

This 1.64ct natural solid dark opal, also known as semi black opal, comes directly from the world famous Lightning Ridge opal fields of Australia.
Its polished pear cabochon cut highlights a play of color that shifts between cyan, green, and blue fire, glowing against the darker body tone.
Measuring approximately 13 x 7.5 x 3 mm, this opal carries an elegant size that makes it ideal for both statement jewelry and everyday wear.

Expertly cut and polished, this Lightning Ridge dark opal is a loose stone ready to be set into fine jewelry.
Whether chosen for a custom opal engagement ring, pendant, or collector’s piece, its vibrant flashes of color add depth and brilliance to any design.
Unlike doublets or triplets, this gemstone is 100% natural and untreated, ensuring lasting value and authenticity.

Dark opals from Lightning Ridge are highly sought after for their rich body tone that enhances color play.
As the October birthstone, opal is celebrated for symbolizing hope, creativity, and passion, making this a meaningful gift or personal treasure.

This opal will arrive securely packaged in an Opal Galaxy gift box, ready for safe storage, jewelry setting, or presentation as a collector gemstone.

Read about Buying Black Opals for Investment
Watch more opals on YouTube

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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