Crystal boulder opal 6.99 ct rectangular cabochon on a black background showing soft purple pink and orange flashes.
Crystal boulder opal 6.99 ct rectangular cabochon held in fingers showing soft pink lavender and orange color play.
Side view of crystal boulder opal 6.99 ct rectangular cabochon showing the low dome and a smooth polished edge.
Back view of crystal boulder opal 6.99 ct held in fingers showing the natural base and rectangle shape.
DSC9290

This 6.99ct natural crystal boulder opal from Australia radiates with a soft orange body tone infused with dreamy flashes of blue from within. The rectangular cut enhances its sleek silhouette while the semi-translucent glow gives it an ethereal charm. Ideal for minimalist pendant settings or unique gemstone collections, this opal has a warm, mystical presence.

Features & Benefits:
100% Natural Solid Opal Ethically sourced from Australia
Vivid Play-of-Color Soft orange with inner blue glow
Versatile Use Ideal for pendants, talismans, or designer jewelry
Unique Rectangle Cut Refined shape for custom settings
Smooth Polished Surface Jewelry-ready finish
October Birthstone A meaningful and thoughtful gift
Australian Treasure A one-of-a-kind collectors opal

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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6.99ct Natural Crystal Boulder Opal

AU$200

In stock

Details

Dimension:

15.5x10x6 mm

Weight:

6.99ct

Type:

Natural Solid Untreated Crystal Boulder Opal

Source:

Winton, QLD, Australia

Sku:

PP407

This 6.99ct natural crystal boulder opal from Australia radiates with a soft orange body tone infused with dreamy flashes of blue from within. The rectangular cut enhances its sleek silhouette while the semi-translucent glow gives it an ethereal charm. Ideal for minimalist pendant settings or unique gemstone collections, this opal has a warm, mystical presence.

Features & Benefits:
100% Natural Solid Opal Ethically sourced from Australia
Vivid Play-of-Color Soft orange with inner blue glow
Versatile Use Ideal for pendants, talismans, or designer jewelry
Unique Rectangle Cut Refined shape for custom settings
Smooth Polished Surface Jewelry-ready finish
October Birthstone A meaningful and thoughtful gift
Australian Treasure A one-of-a-kind collectors opal

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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