australian opal black opal 1.78ct neon pink fire opal galaxy
lightning ridge opal 1.78ct multicolor fire oval opal galaxy
black opal gemstone 1.78ct luxury pink fire opal galaxy
australian black opal 1.78ct double sided color opal galaxy
black opal oval cabochon 1.78ct bright pink fire macro opal galaxy
black opal 1.78ct fuchsia pink multicolor oval cabochon opal galaxy
lightning ridge black opal 1.78ct pink cyan green fire opal galaxy

This 1.78ct natural solid dark opal from Lightning Ridge, Australia displays vivid fuchsia pink, cyan, green, and blue multicolor fire in a polished oval cabochon. Color is visible across both sides of the stone, adding depth and visual performance from multiple viewing angles.

Jewelry Use

This opal is suited as a center stone for a custom ring or pendant. The oval cabochon shape and strong color presence allow it to remain visually dominant in fine jewelry designs.

October Birthstone

Opal is one of the most valuable October birthstones, valued for its natural play of color. Stones with strong multicolor fire are especially desirable for fine jewelry pieces.

Authenticity

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

About Lightning Ridge Opal

Lightning Ridge is the most important source of black opal, known for producing stones with deep base color and strong contrast. Opals from this region are highly regarded for their brightness and intensity of color.

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 dark opals collection or contact us with questions.

Shipping Updates - March 2026

Latest international delivery information from Australia Post and FedEx.

USA Tariffย 

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 ourย Shipping Policyย page for more information.

7 day return and refund policy.
Please view ourย Return and Refundย 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 1.78ct Double Sided Fuchsia Pink

AU$3,051

In stock

Details

Dimension:

9.2 x 7.2 x 4.5 mm

Weight:

1.78ct

Type:

Natural Solid Untreated Dark Opal

Source:

Lightning Ridge, NSW, Australia

Sku:

XX1939

This 1.78ct natural solid dark opal from Lightning Ridge, Australia displays vivid fuchsia pink, cyan, green, and blue multicolor fire in a polished oval cabochon. Color is visible across both sides of the stone, adding depth and visual performance from multiple viewing angles.

Jewelry Use

This opal is suited as a center stone for a custom ring or pendant. The oval cabochon shape and strong color presence allow it to remain visually dominant in fine jewelry designs.

October Birthstone

Opal is one of the most valuable October birthstones, valued for its natural play of color. Stones with strong multicolor fire are especially desirable for fine jewelry pieces.

Authenticity

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

About Lightning Ridge Opal

Lightning Ridge is the most important source of black opal, known for producing stones with deep base color and strong contrast. Opals from this region are highly regarded for their brightness and intensity of color.

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 dark opals collection or contact us with questions.

Shipping Updates - March 2026

Latest international delivery information from Australia Post and FedEx.

USA Tariffย 

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 ourย Shipping Policyย page for more information.

7 day return and refund policy.
Please view ourย Return and Refundย 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.

You may also like

Recently Viewed

Reviews