Natural 24.5ct crystal boulder opal pendant in sterling silver showing multicolor fire with red green and blue flashes
Australian crystal opal pendant necklace worn on model, horizontal sterling silver setting with red and green fire. Natural solid untreated opal jewelry.
Back view of 24.5ct Australian crystal opal pendant displaying natural sandstone host rock in sterling silver setting. Solid untreated opal necklace.
24.5ct Australian Crystal Opal Pendant Red Green Fire Sterling Silver NN700

This 24.5ct crystal boulder opal pendant necklace is set horizontally in 925 sterling silver, displaying bright multicolor fire across a polished rectangular cabochon. The clean side to side setting creates a balanced modern silhouette suited to everyday wear or layering.

Cut from Australian crystal boulder opal, often referred to as pipe crystal opal, this stone forms within sandstone host rock rather than traditional ironstone. The semi translucent crystal body reveals red, green, and subtle blue flashes moving across a light base, with natural sandstone framing the edges of the opal.

The pendant measures approximately 10 x 16.5 x 4.7 mm and is finished with an 18 inch sterling silver chain, ready to wear immediately. Its horizontal design gives a structured profile while maintaining a refined, minimal look.

A meaningful October birthstone gift or distinctive Australian crystal opal jewelry piece.

100% natural untreated solid crystal boulder opal. Not a doublet or triplet.

Browse all opal pendants or contact us with questions.

 

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 $80 FedEx Shipping Upgrade under $3999

All shipping includes complimentary insurance.
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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Crystal Boulder Opal Pendant Sterling Silver 24.5ct

AU$682

In stock

Details

Dimension:

10 x 16.5 x 4.7 mm

Weight:

24.5ctw (Pendant and Necklace)

Type:

Natural Solid Untreated Crystal Boulder Opal

Source:

Winton, QLD, Australia

Sku:

NN701

Notes

Necklace: 18 inch (slightly adjustable)
Metal: 925 sterling silver pendant and necklace (stamped)

This 24.5ct crystal boulder opal pendant necklace is set horizontally in 925 sterling silver, displaying bright multicolor fire across a polished rectangular cabochon. The clean side to side setting creates a balanced modern silhouette suited to everyday wear or layering.

Cut from Australian crystal boulder opal, often referred to as pipe crystal opal, this stone forms within sandstone host rock rather than traditional ironstone. The semi translucent crystal body reveals red, green, and subtle blue flashes moving across a light base, with natural sandstone framing the edges of the opal.

The pendant measures approximately 10 x 16.5 x 4.7 mm and is finished with an 18 inch sterling silver chain, ready to wear immediately. Its horizontal design gives a structured profile while maintaining a refined, minimal look.

A meaningful October birthstone gift or distinctive Australian crystal opal jewelry piece.

100% natural untreated solid crystal boulder opal. Not a doublet or triplet.

Browse all opal pendants or contact us with questions.

 

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 $80 FedEx Shipping Upgrade under $3999

All shipping includes complimentary insurance.
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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