1.29ct semi black opal heart orange yellow green blue fire opal galaxy
1.29ct dark opal heart semi black lightning ridge australia opal galaxy
natural dark opal heart gemstone 1.29ct lightning ridge opal galaxy
semi black opal heart cabochon 1.29ct australian opal galaxy

This 1.29 carat natural semi black opal from Lightning Ridge, New South Wales displays vivid orange, yellow, green, and blue fire across a romantic heart shaped cabochon. The color play appears in scattered patterns throughout the semi black body tone, creating exceptional contrast between brilliant multicolor fire and dark background. This rare heart cut maximizes the play of color while providing a symbol of eternal love perfect for engagement rings and bridal jewelry. Lightning Ridge opals are renowned worldwide for producing the finest black and semi black opals with exceptional fire, rarity, and investment grade quality.

Measuring approximately 7.6 × 9.3 × 3.1 millimeters, this dark opal gemstone offers ideal proportions for engagement rings, romantic pendants, anniversary jewelry, or custom design pieces. The heart cut suits both classic solitaire settings and contemporary bezel or prong settings in yellow gold, white gold, platinum, or rose gold. This color gemstone pairs exceptionally well with diamonds for halo designs, three stone rings, or accent settings that enhance the opal's natural fire. Bespoke jewelry designers appreciate the versatility for bridal sets, proposal rings, Valentine's Day gifts, or wedding jewelry. The semi black body tone intensifies the multicolor fire, creating visual impact sought after by couples and collectors who value both beauty and sentimental meaning.

This is a 100% natural, untreated solid semi black opal, not a doublet or triplet. The gemstone formed naturally in the legendary opal fields of Lightning Ridge, ensuring authentic Australian origin with investment grade quality. This one of a kind heart cut represents a rare find with strong collector appeal and long term value potential, prized for intense color play and meaningful symbolism.

As the official opal October birthstone, this heart cut gemstone offers a romantic forever piece that celebrates love with rare natural beauty. The heart shape, vivid rainbow fire, semi black body tone, and Lightning Ridge provenance make this an excellent choice for engagement rings, bridal jewelry, or meaningful keepsakes. This dark opal will arrive securely packaged in an Opal Galaxy luxury gift box, ready for professional jewelry setting or safe storage.

Shipping Updates - March 2026

Latest international delivery information from Australia Post and FedEx.

USA Tariff 

USA customers do not need to pay any tariffs on their purchase. Opal Galaxy covers all tariff charges to the USA, with no additional government fees added after checkout.

Delivery Status

USA: No delays
Asia: No delays
UK: Minor delays possible (Complimentary EMS Express upgrade)
Europe: Minor delays possible (Complimentary EMS Express upgrade)
Middle East: Shipping temporarily suspended - Please contact us to discuss shipping arrangements before purchase.

Shipping Information

All shipping includes complimentary insurance.

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 $100 FedEx Shipping Upgrade under $3999

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

1.29ct Dark Opal Heart

AU$563

In stock

Details

Dimension:

7.6 × 9.3 × 3.1 mm

Weight:

1.29ct

Type:

Natural Solid Untreated Dark Opal

Source:

Lightning Ridge, NSW, Australia

Sku:

XX1915

This 1.29 carat natural semi black opal from Lightning Ridge, New South Wales displays vivid orange, yellow, green, and blue fire across a romantic heart shaped cabochon. The color play appears in scattered patterns throughout the semi black body tone, creating exceptional contrast between brilliant multicolor fire and dark background. This rare heart cut maximizes the play of color while providing a symbol of eternal love perfect for engagement rings and bridal jewelry. Lightning Ridge opals are renowned worldwide for producing the finest black and semi black opals with exceptional fire, rarity, and investment grade quality.

Measuring approximately 7.6 × 9.3 × 3.1 millimeters, this dark opal gemstone offers ideal proportions for engagement rings, romantic pendants, anniversary jewelry, or custom design pieces. The heart cut suits both classic solitaire settings and contemporary bezel or prong settings in yellow gold, white gold, platinum, or rose gold. This color gemstone pairs exceptionally well with diamonds for halo designs, three stone rings, or accent settings that enhance the opal's natural fire. Bespoke jewelry designers appreciate the versatility for bridal sets, proposal rings, Valentine's Day gifts, or wedding jewelry. The semi black body tone intensifies the multicolor fire, creating visual impact sought after by couples and collectors who value both beauty and sentimental meaning.

This is a 100% natural, untreated solid semi black opal, not a doublet or triplet. The gemstone formed naturally in the legendary opal fields of Lightning Ridge, ensuring authentic Australian origin with investment grade quality. This one of a kind heart cut represents a rare find with strong collector appeal and long term value potential, prized for intense color play and meaningful symbolism.

As the official opal October birthstone, this heart cut gemstone offers a romantic forever piece that celebrates love with rare natural beauty. The heart shape, vivid rainbow fire, semi black body tone, and Lightning Ridge provenance make this an excellent choice for engagement rings, bridal jewelry, or meaningful keepsakes. This dark opal will arrive securely packaged in an Opal Galaxy luxury gift box, ready for professional jewelry setting or safe storage.

Shipping Updates - March 2026

Latest international delivery information from Australia Post and FedEx.

USA Tariff 

USA customers do not need to pay any tariffs on their purchase. Opal Galaxy covers all tariff charges to the USA, with no additional government fees added after checkout.

Delivery Status

USA: No delays
Asia: No delays
UK: Minor delays possible (Complimentary EMS Express upgrade)
Europe: Minor delays possible (Complimentary EMS Express upgrade)
Middle East: Shipping temporarily suspended - Please contact us to discuss shipping arrangements before purchase.

Shipping Information

All shipping includes complimentary insurance.

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 $100 FedEx Shipping Upgrade under $3999

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