0.8ct solid black crystal opal heart on white background, displaying vivid electric blue and violet play-of-colour across a dark translucent body, Lightning Ridge Australia
0.8ct solid black crystal opal heart held between fingers, displaying vivid blue and violet play-of-colour against a dark body tone, Lightning Ridge Australia
0.8ct natural untreated black crystal opal carved into a heart shape, resting on a fingertip, showing electric blue and purple colour flash, Lightning Ridge Australia
Back view of a 0.8ct natural black crystal opal heart cabochon showing blue and violet colour play, Lightning Ridge Australia
0-8ct-black-crystal-opal-heart-blue-violet-xx1778

Black Crystal Opal Heart

0.8ct Black Crystal Opal Heart from Lightning Ridge, Australiarenowned for producing the finest opals in the world. Featuring intense blue and violet fire that dances across its surface like a cosmic aurora, this tiny heart gem captures all the romance and rarity you could ask for in a gemstone.

The semi-translucent black crystal body enhances the color vibrancy and gives the stone its characteristic depth. Its symmetrical heart shape is polished to perfection, making it an ideal choice for dainty, meaningful jewelry pieces. Whether youre crafting a symbolic gift or expanding your opal collection, this one-of-a-kind gemstone delivers maximum beauty in minimal space.

An exceptional choice for both collectors and bespoke designers, this heart opal is the embodiment of elegance, light, and emotion.
A perfect gem for October birthdays or cosmic dreamers.

Features & Benefits:
Natural Black Crystal Opal from Lightning Ridge, Australia
Vivid Blue and Violet Fire Intense color play
Heart Shape Perfect for romantic or symbolic pieces
High Clarity Ideal for premium jewelry design
Compact & Versatile Easily fits into dainty settings
Unique Gem Only one in existence
October Birthstone Creative and meaningful energy

Watch more opals on our YouTube Channel

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

0.8ct Black Crystal Opal Heart – Blue and Violet Fire

AU$535

In stock

Details

Dimension:

7x8.4x2.5mm

Weight:

0.8ct

Type:

Natural Solid Untreated Black Crystal Opal

Source:

Lightning Ridge, NSW, Australia

Sku:

XX1778

Black Crystal Opal Heart

0.8ct Black Crystal Opal Heart from Lightning Ridge, Australiarenowned for producing the finest opals in the world. Featuring intense blue and violet fire that dances across its surface like a cosmic aurora, this tiny heart gem captures all the romance and rarity you could ask for in a gemstone.

The semi-translucent black crystal body enhances the color vibrancy and gives the stone its characteristic depth. Its symmetrical heart shape is polished to perfection, making it an ideal choice for dainty, meaningful jewelry pieces. Whether youre crafting a symbolic gift or expanding your opal collection, this one-of-a-kind gemstone delivers maximum beauty in minimal space.

An exceptional choice for both collectors and bespoke designers, this heart opal is the embodiment of elegance, light, and emotion.
A perfect gem for October birthdays or cosmic dreamers.

Features & Benefits:
Natural Black Crystal Opal from Lightning Ridge, Australia
Vivid Blue and Violet Fire Intense color play
Heart Shape Perfect for romantic or symbolic pieces
High Clarity Ideal for premium jewelry design
Compact & Versatile Easily fits into dainty settings
Unique Gem Only one in existence
October Birthstone Creative and meaningful energy

Watch more opals on our YouTube Channel

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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