29.45ct Natural Boulder Opal Large front face view Australian opal gemstone Opal Galaxy product image
29.45ct Natural Boulder Opal Large angled view Australian opal gemstone Opal Galaxy product image
29.45ct Natural Boulder Opal Large hand view Australian opal gemstone Opal Galaxy product image
29.45ct Natural Boulder Opal Large detail view Australian opal gemstone Opal Galaxy product image
29.45ct Natural Boulder Opal Large Side view Australian opal gemstone Opal Galaxy product image
29.45ct Natural Boulder Opal Large side view Australian opal gemstone Opal Galaxy product image
29.45ct Natural Boulder Opal Large detail view Australian opal gemstone Opal Galaxy product image
29.45ct Natural Boulder Opal Large detail view Australian opal gemstone Opal Galaxy product image
29.45ct Natural Boulder Opal Large detail view Australian opal gemstone Opal Galaxy product image

This 29.45ct Natural Boulder Opal from Winton, Queensland, features an electrifying palette of royal blue and emerald green over a warm earthy matrix. The broad flash pattern dances across the surface, shifting under the light with vibrant intensity. Its generous size and naturally sculpted freeform shape make this a standout centerpiece for high-end jewelry or a premium collectors piece.

Features & Benefits:
100% Natural Solid Boulder Opal Responsibly sourced from Winton, Australia
Vibrant Blue-Green Color Play Broad flashes light up across polished stone
Bold Statement Size 29.45ct of solid opal perfect for bespoke jewelry
Freeform Shape Naturally contoured and organically beautiful
Collector's Gem Rare size and vivid color, ideal for showcasing or investing
October Birthstone Symbolic of hope, creativity, and emotional clarity
Eligible for Payment Plan Flexible option for designers and collectors

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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29.45ct Natural Boulder Opal Large

AU$1,589

In stock

Details

Dimension:

34x16.5x6 mm

Weight:

29.45ct

Type:

Natural Solid Untreated Boulder Opal

Source:

Winton, QLD, Australia

Sku:

XX1370

This 29.45ct Natural Boulder Opal from Winton, Queensland, features an electrifying palette of royal blue and emerald green over a warm earthy matrix. The broad flash pattern dances across the surface, shifting under the light with vibrant intensity. Its generous size and naturally sculpted freeform shape make this a standout centerpiece for high-end jewelry or a premium collectors piece.

Features & Benefits:
100% Natural Solid Boulder Opal Responsibly sourced from Winton, Australia
Vibrant Blue-Green Color Play Broad flashes light up across polished stone
Bold Statement Size 29.45ct of solid opal perfect for bespoke jewelry
Freeform Shape Naturally contoured and organically beautiful
Collector's Gem Rare size and vivid color, ideal for showcasing or investing
October Birthstone Symbolic of hope, creativity, and emotional clarity
Eligible for Payment Plan Flexible option for designers and collectors

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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