Dark opal 3.75 ct close up revealing distinct color bands and strong play of color.
Dark opal 3.75 ct angled view displaying green red and blue flashes across the surface.
Dark opal 3.75 ct shown on fingers to demonstrate size and elongated teardrop proportions.
Dark opal 3.75 ct side view highlighting smooth polish and even cabochon thickness.
Dark opal 3.75 ct side profile showing a slim well polished cabochon.
Dark opal 3.75 ct elongated teardrop shape shown on fingers with soft multicolor fire.
Dark opal 3.75 ct front view showing rolling multicolor fire on a dark base.

This 3.75ct Natural Dark Opal from Lightning Ridge, Australia boasts a graceful teardrop shape with vivid rolling mackerel patternbands of red, green, and blue that ripple dynamically across the surface. Ethereal yet bold, this piece is full of motion and fire, ideal for statement jewelry with a story.

Features & Benefits:
100% Natural Dark Opal Ethically sourced from Lightning Ridge, NSW, Australia
Rolling Mackerel Pattern Bands of color shift and ripple with light
Play-of-Color Red, green, and blue hues light up from different angles
Perfect for Custom Jewelry Elegant teardrop shape for pendants or bold rings
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 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.

Add to Wishlist

3.75ct Natural Dark Opal Rolling Mackerel Pattern

AU$1,311

In stock

Details

Dimension:

18x8x4.5 mm

Weight:

3.75ct

Type:

Natural Solid Untreated Dark Opal

Source:

Lightning Ridge, NSW, Australia

Sku:

XX1406

This 3.75ct Natural Dark Opal from Lightning Ridge, Australia boasts a graceful teardrop shape with vivid rolling mackerel patternbands of red, green, and blue that ripple dynamically across the surface. Ethereal yet bold, this piece is full of motion and fire, ideal for statement jewelry with a story.

Features & Benefits:
100% Natural Dark Opal Ethically sourced from Lightning Ridge, NSW, Australia
Rolling Mackerel Pattern Bands of color shift and ripple with light
Play-of-Color Red, green, and blue hues light up from different angles
Perfect for Custom Jewelry Elegant teardrop shape for pendants or bold rings
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 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.

Recently Viewed

Reviews