-20%
37ct Koroit boulder opal pendant showing detailed ironstone matrix pattern
37ct Koroit boulder opal pendant held on finger showing detailed natural ironstone pattern
close view of 37ct Koroit boulder opal pendant showing strong natural pattern and color play
Silver Koroit Vein Boulder Opal Pendant with Necklace 37 ct - Copy
41cm Silver Color Chain
41cm Gold Color Chain
Adjustable Cream Wax Rope
Adjustable Black Wax Rope

37ct Koroit Boulder Opal Pendant 

This 37ct Natural Boulder Opal Pendant from Koroit, Queensland, Australia features earthy brown and charcoal tones accented with vivid veins of rainbow fire in green, purple, and orange. The sleek oval shape highlights the natural matrix and play-of-color, making it an elegant and eye-catching piece. Ready to wear and perfect for gifting, this pendant captures the raw charm of Australian opal.

Features & Benefits:
100% Natural Solid Boulder Opal Ethically sourced from Koroit, Australia
Earthy tones with rainbow flashes Shimmers with green, purple, and orange fire
Natural vein patterns Adds rich character and uniqueness
Ready to Wear Comes with an adjustable cord of your choice
October Birthstone A meaningful and timeless gift option

 

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.

Add to Wishlist

37ct Koroit Boulder Opal Pendant

Original price was: AU$462.Current price is: AU$369.

Details

Dimension:

35x15x6 mm

Weight:

37 ct (Whole Pendant)

Type:

Natural Solid Untreated Boulder Opal

Source:

Winton, QLD, Australia

Sku:

NN615

Notes

Pendant: S925 Stamped Sterling Silver with Rhodium Plated

37ct Koroit Boulder Opal Pendant 

This 37ct Natural Boulder Opal Pendant from Koroit, Queensland, Australia features earthy brown and charcoal tones accented with vivid veins of rainbow fire in green, purple, and orange. The sleek oval shape highlights the natural matrix and play-of-color, making it an elegant and eye-catching piece. Ready to wear and perfect for gifting, this pendant captures the raw charm of Australian opal.

Features & Benefits:
100% Natural Solid Boulder Opal Ethically sourced from Koroit, Australia
Earthy tones with rainbow flashes Shimmers with green, purple, and orange fire
Natural vein patterns Adds rich character and uniqueness
Ready to Wear Comes with an adjustable cord of your choice
October Birthstone A meaningful and timeless gift option

 

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.

You may also like

Recently Viewed

Reviews