australian-crystal-opal-marquise-cabochon-parcel-15pcs
natural-crystal-opal-marquise-parcel-neon-fire-australia
coober-pedy-crystal-opal-calibrated-marquise-jewelry-stones
crystal-opal-marquise-calibrated-parcel-10x5mm-coober-pedy-australia

This Coober Pedy crystal opal parcel contains 15 precisely calibrated marquise cabochons totaling 7carats. Each 10x5mm stone displays bright neon fire with orange, yellow, green, blue, and cyan flashes throughout crystal to semi-crystal transparent bodies. Pattern: Broad flash

Size:

  • 15x 10x5mm marquise shapes (rings, earring sets, matched jewelry collections)
  • Uniform sizing - all stones identically calibrated

Calibrated dimensions fit standard marquise jewelry mountings. The 10x5mm size works in elongated ring settings, drop earrings, pendant designs, and side stone configurations. Matched neon fire consistency across all fifteen stones ensures cohesive designs whether used together or distributed across multiple jewelry pieces.

Authenticity: Natural solid crystal opal. Not treated, not synthetic. IGS-authenticated.

Learn more: How to Choose the Right Opal | What Makes an Opal Valuable

Browse all calibrated opals or contact us for custom size requests.

ย 

ย 

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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10x5mm Crystal Opal Calibrated 7ct

AU$984

In stock

Details

Dimension:

10 x 5 mm

Weight:

7ctw

Type:

Natural Solid Untreated Crystal Opal

Source:

Coober Pedy, SA, Australia

Sku:

CC45

This Coober Pedy crystal opal parcel contains 15 precisely calibrated marquise cabochons totaling 7carats. Each 10x5mm stone displays bright neon fire with orange, yellow, green, blue, and cyan flashes throughout crystal to semi-crystal transparent bodies. Pattern: Broad flash

Size:

  • 15x 10x5mm marquise shapes (rings, earring sets, matched jewelry collections)
  • Uniform sizing - all stones identically calibrated

Calibrated dimensions fit standard marquise jewelry mountings. The 10x5mm size works in elongated ring settings, drop earrings, pendant designs, and side stone configurations. Matched neon fire consistency across all fifteen stones ensures cohesive designs whether used together or distributed across multiple jewelry pieces.

Authenticity: Natural solid crystal opal. Not treated, not synthetic. IGS-authenticated.

Learn more: How to Choose the Right Opal | What Makes an Opal Valuable

Browse all calibrated opals or contact us for custom size requests.

ย 

ย 

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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