434.5ct Massive Teardrop Boulder Opal Vein Specimen front face view Australian opal gemstone Opal Galaxy product image
434.5ct Massive Teardrop Boulder Opal Vein Specimen in hand view Australian opal gemstone Opal Galaxy product image
434.5ct Massive Teardrop Boulder Opal Vein Specimen in hand view Australian opal gemstone Opal Galaxy product image
434.5ct Massive Teardrop Boulder Opal Vein Specimen in hand view Australian opal gemstone Opal Galaxy product image
434.5ct Massive Teardrop Boulder Opal Vein Specimen detail view Australian opal gemstone Opal Galaxy product image
434.5ct Massive Teardrop Boulder Opal Vein Specimen detail view Australian opal gemstone Opal Galaxy product image

Massive Teardrop Boulder Opal Vein Specimen 434.5ct Natural Australian Opal

This 434.5-carat Natural Boulder Opal Vein Specimen, sourced from the renowned Winton, Queensland, Australia, is a truly remarkable collectors piece. Featuring an intricate blue opal vein running through its natural ironstone matrix, this massive teardrop-shaped specimen showcases the raw beauty of Australian opal formation.

Features:

100% Natural & Untreated: Solid boulder opal, untouched and in its purest form
Striking Blue Opal Vein: A natural opal pattern embedded within the ironstone matrix
Impressive Size & Presence: 76.5 x 52 x 15mm, making it a substantial display piece
Unique Teardrop Shape: Naturally sculpted by geological processes over millions of years
Durable & Long-Lasting: Strong ironstone matrix ensures stability and longevity

Benefits:

Rare & One-of-a-Kind: No two boulder opal specimens are the sameown a true piece of natures artistry
Perfect for Collectors & Enthusiasts: A must-have for gemstone collectors, opal lovers, and mineral enthusiasts
Versatile Display Piece: Can be showcased as a centerpiece, conversation starter, or part of a mineral collection
Natural Beauty & Energy: Many believe opals carry unique energy and meaning, making this an intriguing addition to any collection

This exceptional 434.5ct boulder opal specimen is a rare treasure, perfect for collectors, lapidary artists, or anyone fascinated by the wonders of natural opal formation. A true statement of natures brilliance!

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 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.

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434.5ct Massive Teardrop Boulder Opal Vein Specimen

AU$1,700

In stock

Details

Dimension:

76.5x52x15 mm

Weight:

434.5 ct

Type:

Natural Solid Untreated Boulder Opal

Source:

Winton, QLD, Australia

Sku:

XX1764

Massive Teardrop Boulder Opal Vein Specimen 434.5ct Natural Australian Opal

This 434.5-carat Natural Boulder Opal Vein Specimen, sourced from the renowned Winton, Queensland, Australia, is a truly remarkable collectors piece. Featuring an intricate blue opal vein running through its natural ironstone matrix, this massive teardrop-shaped specimen showcases the raw beauty of Australian opal formation.

Features:

100% Natural & Untreated: Solid boulder opal, untouched and in its purest form
Striking Blue Opal Vein: A natural opal pattern embedded within the ironstone matrix
Impressive Size & Presence: 76.5 x 52 x 15mm, making it a substantial display piece
Unique Teardrop Shape: Naturally sculpted by geological processes over millions of years
Durable & Long-Lasting: Strong ironstone matrix ensures stability and longevity

Benefits:

Rare & One-of-a-Kind: No two boulder opal specimens are the sameown a true piece of natures artistry
Perfect for Collectors & Enthusiasts: A must-have for gemstone collectors, opal lovers, and mineral enthusiasts
Versatile Display Piece: Can be showcased as a centerpiece, conversation starter, or part of a mineral collection
Natural Beauty & Energy: Many believe opals carry unique energy and meaning, making this an intriguing addition to any collection

This exceptional 434.5ct boulder opal specimen is a rare treasure, perfect for collectors, lapidary artists, or anyone fascinated by the wonders of natural opal formation. A true statement of natures brilliance!

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 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.

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