7.89 ct Eye-opening Fancy Shape (20 x 20 mm) Multi Color Australian Koroit Boulder Opal Natural Loose Gemstone Rare Stone! Unheated / Untreated Multi Color Orgin From Australia 100% Natural Genuine Mined from Earth Gemstone!!! Gem Type Boulder Opal Color Multi ColorShape Fancy Size (LxWxD) 20.30 x 19.79 x 3.60 mm Weight 7.89 ct Hardness 6.5 Luster Excellent Clarity Translucent Treatment Unheated / Untreated Origin Australia RefractiveIndex 1.37-1.47 Specific Gravity 2.1 FL IF VVS1 VVS2 VS1 VS2 SI1 SI2 L1 L2 L3 L4 Flawless Internally Flawless Very Very Slightly Imperfect Very Slightly Imperfect Slightly Imperfect Imperfect Opaque Boulder Opal Mohs Hardness: 5.5-6.5 Found in Australia History: Opal is a semi-transparent solidified mineral composed of silicon and water. Boulder opal refers to a clear water opal with brilliant color play and a distinctive dark chocolate brown ironstone matrix. This opal was formed when silica-bearing steam was forced into cracks in ironstone boulders and then mineralized. The name opal is derived from the Latin opalus and Sanskrit upala meaning “precious stone”. The Greek term opallios translates “to see a change in color”. The oldest known opal mine is in Czechoslovakia and dates to 14th century. Popularity of opal suffered in 19th century partially due to Sir Walter Scott’s novel of a cursed stone and was thought to be bad luck. Queen Victoria promoted the stone in 1800s by giving opal jewelry to her children. In the middle ages, the stone was thought to make the wearer invisible, and was highly recommended to thieves. Today, Australia is major source for opal and supplies abt 85% of the world’s opal. It is a rather soft stone and needs care with handling. Do not immerse in hot water or a sonic cleaner. Opal is graded by size/cut/rarity/base color/fire color/fire intensity/fire pattern and fire consistency. Metaphysical: said to assist in recalling past incarnations, to develop psychic powers,bring out inner beauty, and draw money and luck Track Page Views WithAuctiva’s Counter
9.49 ct Octagon (24 x 9 mm) Unheated / Untreated Watermelon Tourmaline
Slices of this stone should have a green rind with a pink center. There are currently 10 different varieties in the tourmaline family. Tourmaline is estimated to have been used as a gem for over 2000 years, especially by the Chinese.
36.02 ct AAA Grade Flashing Octagon Cut (23 x 15 mm) Genuine London Blue Topaz
A common misconception is that all topaz is yellow because of the birthstone color for November, Imperial yellow Topaz. Pure topaz is colorless, but can occur in a wide range of color, including yellow, brown, pink, red, blue, and green.
5.03 ct Resplendent Pear Cabochon (17 x 12 mm) Flashing Multicolor Rainbow Opal
5.03 ct Resplendent Pear Cabochon (17 x 12 mm) Flashing 360 Degree Multicolor Rainbow Opal Gemstone Great Investment Gemstone! Genuine & Mined from Earth 100% Natural Genuine Mined from Earth Gemstone!!! Gem Type Rainbow Opal Color Play of ColorsShape Pear Cabochon Size (LxWxD) 16.79 x 12.06 x 5.74 mm Weight 5.03 ct Hardness 6.5 Luster Excellent Clarity Semi-Transparent Treatment 100% Natural (Un-Heated) Origin Ethiopia RefractiveIndex 1.37-1.47 Specific Gravity 2.1 FL IF VVS1 VVS2 VS1 VS2 SI1 SI2 L1 L2 L3 L4 Flawless Internally Flawless Very Very Slightly Imperfect Very Slightly Imperfect Slightly Imperfect Imperfect Opaque Rainbow Opal Mohs Hardness: 5.5-6.5 Found in Australia, Austria, Honduras, Brazil, Mexico, Zimbabwe, Ethiopia and the USA. History: Opal is a semi-transparent solidified mineral composed of silicon and water. White Opal refers to the light background color of the stone behind the play of color (Rainbow color). The name is derived from the Latin opalus and Sanskrit upala meaning “precious stone”. The Greek term opallios translates “to see a change in color”. Opal is the primary birthstone for October and the accepted gem for the 13th wedding anniversary. The oldest known opal mine is in Czechoslovakia and dates to 14th century. Popularity of opal suffered in 19th century, partially due to Sir Walter Scott’s novel of a cursed stone and was thought to be bad luck. Queen Victoria promoted the stone in 1800s by giving opal jewelry to her children. In the middle ages, the stone was thought to make the wearer invisible, and was highly recommended to thieves. The Romans believed opal to be the symbol of hope and called it cupid paederos or the child as beautiful as love, they also considered the wearer to be safe from disease. The Arabs thought the opal fell from the sky with flashed of lightning and the Greeks thought it gave the gift of foresight and prophesy to the owner. Today, Australia is major source for opal and supplies abt 85% of the world’s opal. It is a rather soft stone and needs care with handling. Do not immerse in hot water or a sonic cleaner. Opal is graded by size/cut/rarity/base color/fire color/fire intensity/fire pattern and fire consistency. Metaphysical: said to assist in recalling past incarnations, to develop psychic powers, bring out inner beauty, and draw money and luck. Track Page Views WithAuctiva’s Counter
9.80 ct Fabulous Fancy (17 x 14 mm) Multi Color Australian Koroit Boulder Opal
9.80 ct Fabulous Fancy Shape (17 x 14 mm) Multi Color Australian Koroit Boulder Opal Natural Loose Gemstone. Boulder Opal. Mohs Hardness: 5.5-6.5 Found in Australia History: Opal is a semi-transparent solidified mineral composed of silicon and water.
3.91 ct Awe-inspiring Pear Cabochon Shape (15 x 11 mm) Yellow Opal Gemstone
3.91 ct Awe-inspiring Pear Cabochon Shape (15 x 11 mm) Yellow Opal Natural Gemstone Mined From Earth! VVS Quality Yellow Color Stone 100% Natural Genuine Mined from Earth Gemstone!!! Gem Type Opal Color YellowShape Pear Cabochon Size (LxWxD) 14.83 x 10.66 x 5.55 mm Weight 3.91 ct Hardness 6.5 Luster Excellent Clarity VVS Treatment Dyeing Origin Ethiopia RefractiveIndex 1.37-1.47 Specific Gravity 2.1 FL IF VVS1 VVS2 VS1 VS2 SI1 SI2 L1 L2 L3 L4 Flawless Internally Flawless Very Very Slightly Imperfect Very Slightly Imperfect Slightly Imperfect Imperfect Opaque Opal Mohs Hardness – 5.5-6.5 Found in – Australia, Austria, Honduras, Brazil, Mexico, Zimbabwe, Ethiopia and the USA. History – Opal is a semi-transparent solidified mineral composed of silicon and water. White Opal refers to the light background color of the stone behind the play of color (Rainbow color). The name is derived from the Latin opalus and Sanskrit upala meaning “precious stone”. The Greek term opallios translates “to see a change in color”. Opal is the primary birthstone for October and the accepted gem for the 13th wedding anniversary. The oldest known opal mine is in Czechoslovakia and dates to 14th century. Popularity of opal suffered in 19th century, partially due to Sir Walter Scott’s novel of a cursed stone and was thought to be bad luck. Queen Victoria promoted the stone in 1800s by giving opal jewelry to her children. In the middle ages, the stone was thought to make the wearer invisible, and was highly recommended to thieves. The Romans believed opal to be the symbol of hope and called it cupid paederos or the child as beautiful as love, they also considered the wearer to be safe from disease. The Arabs thought the opal fell from the sky with flashed of lightning and the Greeks thought it gave the gift of foresight and prophesy to the owner. Today, Australia is major source for opal and supplies abt 85% of the world’s opal. It is a rather soft stone and needs care with handling. Do not immerse in hot water or a sonic cleaner. Opal is graded by size/cut/rarity/base color/fire color/fire intensity/fire pattern and fire consistency. Metaphysical – said to assist in recalling past incarnations, to develop psychic powers, bring out inner beauty, and draw money and luck. Track Page Views WithAuctiva’s FREE Counter
5.09 ct Gorgeous Oval Cut (12 x 10 mm) Mozambique Pink Tourmaline Gemstone
Mohs Hardness: 7-7.5 Found in Russia, Madagascar, Sri Lanka, Brazil, Myanmar, Tanzania, Nambia, South Africa, Zinbabwe, Mozambique, Kenya & the USA History: There are currently 10 different varieties in the tourmaline family.
5.09 ct Shimmering Fancy (21 x 8 mm) Multi Color Australian Koroit Boulder Opal
5.09 ct Shimmering Fancy Shape (21 x 8 mm) Multi Color Australian Koroit Boulder Opal Natural Loose Gemstone Rare Stone! Unheated / Untreated Multi Color Orgin From Australia 100% Natural Genuine Mined from Earth Gemstone!!! Gem Type Boulder Opal Color Multi ColorShape Fancy Size (LxWxD) 21.03 x 8.05 x 4.11 mm Weight 5.09 ct Hardness 6.5 Luster Excellent Clarity Translucent Treatment Unheated / Untreated Origin Australia RefractiveIndex 1.37-1.47 Specific Gravity 2.1 FL IF VVS1 VVS2 VS1 VS2 SI1 SI2 L1 L2 L3 L4 Flawless Internally Flawless Very Very Slightly Imperfect Very Slightly Imperfect Slightly Imperfect Imperfect Opaque Boulder Opal Mohs Hardness: 5.5-6.5 Found in Australia History: Opal is a semi-transparent solidified mineral composed of silicon and water. Boulder opal refers to a clear water opal with brilliant color play and a distinctive dark chocolate brown ironstone matrix. This opal was formed when silica-bearing steam was forced into cracks in ironstone boulders and then mineralized. The name opal is derived from the Latin opalus and Sanskrit upala meaning “precious stone”. The Greek term opallios translates “to see a change in color”. The oldest known opal mine is in Czechoslovakia and dates to 14th century. Popularity of opal suffered in 19th century partially due to Sir Walter Scott’s novel of a cursed stone and was thought to be bad luck. Queen Victoria promoted the stone in 1800s by giving opal jewelry to her children. In the middle ages, the stone was thought to make the wearer invisible, and was highly recommended to thieves. Today, Australia is major source for opal and supplies abt 85% of the world’s opal. It is a rather soft stone and needs care with handling. Do not immerse in hot water or a sonic cleaner. Opal is graded by size/cut/rarity/base color/fire color/fire intensity/fire pattern and fire consistency. Metaphysical: said to assist in recalling past incarnations, to develop psychic powers,bring out inner beauty, and draw money and luck Track Page Views WithAuctiva’s Counter
8.80 ct Fancy Shape (20 x 13 mm) Multi Color Australian Koroit Boulder Opal
8.80 ct Extraordinary Fancy Shape (20 x 13 mm) Multi Color Australian Koroit Boulder Opal Natural Loose Gemstone. Boulder Opal. Mohs Hardness: 5.5-6.5 Found in Australia History: Opal is a semi-transparent solidified mineral composed of silicon and water.
6.84 ct Resplendent Fancy (20 x 13 mm) Multi Australian Koroit Boulder Opal
6.84 ct Resplendent Fancy Shape (20 x 13 mm) Multi Color Australian Koroit Boulder Opal Natural Loose Gemstone. Boulder Opal. Mohs Hardness: 5.5-6.5 Found in Australia History: Opal is a semi-transparent solidified mineral composed of silicon and water.