Untreated Gems

With moderately included clarity, these 100% natural, untreated gems beautifully balance their organic authenticity with dazzling appeal.

. • Stones: The natural labradorite stones are securely set; they exhibit natural internal inclusions and varied labradorescence typical of untreated gems. • Metalwork: The silver fr...

Mined from the esteemed Kunar region of Afghanistan, these 100% natural, untreated gems display a striking green hue with exceptional luster.

As a 100% natural and untreated gem, it retains its pure, unaltered character, making it a unique and timeless choice for fine jewelry.

With exceptional transparency and an eye-clean clarity, this untreated gem reflects light beautifully, creating a captivating play of colors.

1.03Ct Natural Colour Change Garnet Pink Purple IGI Certified Heart Cut Gem Unique Rare Untreated Colour Change Garnet Gemstone. 1.03 Carat untreated garnet with a rare colour chang...

Rare fully certified, very large untreated green jadeite gem.

Sourced from the renowned Kunar region of Afghanistan, these 100% natural and untreated gems showcase a striking bluish-green hue, exuding elegance and sophistication.

Sourced from the renowned Kunar region of Afghanistan, these 100% natural and untreated gems showcase a striking bluish-green hue, exuding elegance and sophistication.

Sourced from Africa, these untreated gems boast remarkable purity, ensuring their natural beauty remains untouched.

Sourced from Africa, these untreated gems boast remarkable purity, ensuring their natural beauty remains untouched.

A Rare Collector’s Gem Natural, untreated yellow sapphires of this quality have become increasingly difficult to find.

. – very approximately ( due to the close back) carat weight is 5.0 Ct circa probably a bit more Complementary diamond accent comprising 14 in number old half cut diamonds G VVS for...

Sourced from Africa, these untreated gems boast remarkable purity, ensuring their natural beauty remains untouched.

1.42ct Natural Colour Change Garnet GIA Certified Untreated Pyrope Spessartine Rare GIA Certified Untreated Colour Change Garnet Gemstone. 1.42 Carat garnet with a rare colour chang...

1.56ct Natural Colour Change Garnet GIA Certified Untreated Pyrope Spessartine Fine GIA Certified Untreated Colour Change Garnet Gemstone. 1.56 Carat garnet with a rare colour chang...

IGI Certified 0.87ct Australia Vivid Blue Colour Sapphire Untreated Oval Cut IGI Certified Vivid Blue Untreated Australian Sapphire Oval Cut Gem. 0.87 Carat with a fine vivid blue c...

Fully certified by GIA as a top grade sapphire, a unique and top grade gem. This sapphire has excellent clarity, very clean gem.

CHC01 Collection Gem 11.17 Ct Canary Vivid Yellow Chrysoberyl untreated Gemstone Clean and Precision Cutting Ceylon GEM DESCRIPTION Species: Natural Chrysoberyl Variety: Natura...

IGI Certified 1.08ct Untreated Australian Deep Blue Sapphire Oval Cut Rare IGI Certified Fine Deep Blue Untreated Australian Sapphire Oval Cut Gem. 1.08 Carat with a deep blue colour.

Fully certified by GIA confirming stone as natural and untreated. Very rare gem. A fine, top grade, GIA certified, unique bi colour sapphire.

Beautiful vivid pinkish purple colour. Fine colour gem. Totally untreated and unheated, very rare for natural sapphires.

Natural 1.07ct IGI Certified Bi Colour Untreated Blue Yellow Sapphire Octagon Unique IGI Certified Untreated Bi Colour Blue Yellow Sapphire Octagon Cut Gem. 1.07 Carat with a unique...

Unique IGI Certified Bi Colour Blue Yellow 0.76ct Australian Sapphire Untreated IGI Certified Untreated Unique Bi Colour Blue Yellow Sapphire Pear Cut Gem. 0.76 Carat with a unique ...

1.09ct Unique IGI Certified Bi Colour Blue Yellow Australian Sapphire Untreated IGI Certified Untreated Australian Bi Colour Blue Yellow Sapphire Heart Cut Gem. 1.09 Carat with a un...

Untreated IGI Certified Bi Colour Sapphire 1.42ct Blue Yellow Australian Oval Unique IGI Certified Untreated Australian Bi Colour BlueYellow Sapphire Oval Cut Gem. 1.42 Carat with a...

IGI Certified 1.26ct Untreated Deep Blue Yellow Sapphire Australian Baguette Cut IGI Certified Natural Deep Blue Yellow Untreated Australian Sapphire In IGI Blister. 1.26 Carat with...

1.29ct IGI Certified Bi Colour Sapphire Blue Green Yellow Australian Untreated IGI Certified Unique Untreated Bi Colour Deep Greenish Yellow Blue Cushion Cut Australian Sapphire. 1....

Rare 1.48ct GIA Certified Natural Colour Change Cobalt Spinel Untreated Gemstone GIA Certified Untreated Colour Change COBALT Spinel Gemstone.

Fine IGI Certified 1.08ct Untreated Australian Deep Blue Sapphire Oval Cut Rare IGI Certified Fine Deep Blue Untreated Australian Sapphire Oval Cut Gem. 1.08 Carat with a fine deep ...

IGI Certified 1.30ct Untreated Thailand Deep Green Blue Sapphire No Heat Oval IGI Certified Fine Deep Green Blue Untreated Thailand Sapphire Oval Cut Gem. 1.30 Carat with a fine dee...

Fine IGI Certified 1.02ct Untreated Australian Green Blue Teal Sapphire Oval Cut IGI Certified Fine Deep Greenish Blue Teal Untreated Australian Sapphire Oval Cut Gem. 1.02 Carat wi...

IGI Certified 1.33ct Untreated THAI Deep Blue Yellow Bi Colour Sapphire Oval IGI Certified Fine Vivid Blue Yellow Bi Colour Untreated Thai Sapphire Oval Cut Gem. 1.33 Carat with a u...

HYA65 1.39 Ct Natural Untreated Hauyne clarity blue color eye clean Afghanistan Collection gemstone GEM DESCRIPTION Species: Natural Sodalite Variety: Natural Hauyne Untreated...

Fully certified by GIA as natural and untreated. Rare gem. Has a good pear teardrop cut which shows lots of light return and sparkle.

GIA Certified 1.03ct Deep Blue Sapphire Untreated Heart Cut Natural 6.2x5.4mm GIA Certified Untreated Deep Blue Heart Cut Sapphire Gem. 1.03 Carat unheated deep blue sapphire.

Fully certified by GIA confirming stone as natural, untreated and Australian origin. Very rare gem. This sapphire has excellent clarity, a very clean stone.

Natural GIA Certified 1.55ct Ceylon Yellow Sapphire Untreated No Heat Heart Cut Natural GIA Certified Untreated Ceylon Yellow Sapphire. 1.55 Carat sapphire with a beautiful bright y...

Unique 8.33ct Natural Winza Sapphire Ruby Blue Red Untreated Pear Cabochon Cut Unique Natural Untreated Blue Red Winza Ruby Cabochon Sapphire 8.33 Carat with a pear cut cabochon and...

15.93ct GIA Certified Natural Zircon Brown Pink Untreated Pear Cut Rare Gemstone Rare GIA Certified Natural Untreated Brownish Pink 'Champagne' Zircon Gemstone.

Rare Natural Orange Pink Untreated Coral 0.53ct Marquise Cabochon IGI Certified Natural Pink Orange Coral Gem. 0.53 Carat with an excellent marquise cabochon cut.

Rare Natural Orange Pink Untreated Coral 0.81ct Round Cabochon IGI Certified Natural Pink Orange Coral Gem. 0.81 Carat with an excellent round cabochon cut.

A fine untreated purple pink sapphire. All products are tested by a gemmologist with the following qualifications: - Distinction grade in gemmology with the Gemmological association...

Loose Aquamarine Set Weight: 4.75 Carat Sizes: Upper Aquamarine Pair: 3.60 Carat Lower Aquamarine Pair : 1.15 Carat Colour : Pale Blue Origin: Shigar Valley, Pakistan Treatment: Non ...

Loose Aquamarine Weight: 15.40 Carat Dimension: 20.4 x 10.1 x 8.3 Mm Colour : Pale Blue Origin: Shigar Valley, Pakistan Treatment: Non Certificate : On Demand Shape: Emerald Aquama...

The GIA report, dated December 16, 2025, confirms the stone's identity with no comments or treatments noted, making this a completely natural, untreated gem of significant collector ...

IGI Certified 2.02ct Green Blue Hazy Silky Sapphire Natural Blister Gem IGI Certified Untreated Green Blue Oval Cut Australian Hazy Silky Sapphire. 2.02 Carat with a greenish blue c...

Rare fully certified, untreated deep green jadeite gem. Cabochons like this are very difficult to photograph.

Rare fully certified, large untreated deep green jadeite gem. Cabochons like this are very difficult to photograph.

Rare fully certified, untreated deep green jadeite gem. Cabochons like this are very difficult to photograph.

Rare fully certified untreated green jadeite gem. Cabochons like this are very difficult to photograph.

Rare fully certified untreated green jadeite gem. Cabochons like this are very difficult to photograph.

Fully certified by GIA confirming stone as natural, untreated and Pyrope Spessartine. This gem also has excellent clarity, a very clean stone, VS.

A fine, top grade, certified untreated colour change sapphire sapphire. Rare and unique gem.

Unique 1.37ct Bi Colour Sapphire Unheated Blue Yellow Trillion Cut Rare Gem Natural Untreated Green Yellow Bi Colour Sapphire Gemstone. 1.39 Carat with a unique yellow green bi colo...

It belongs to the limited edition collection. Gems, natural, untreated: Cushion cut fancy pink sapphire, 6.63 carats, 12.4x10 mm.

Rare fully certified untreated green jadeite gem. Cabochons like this are very difficult to photograph.

Rare fully certified, very large untreated green jadeite gem. Cabochons like this are very difficult to photograph.

Rare fully certified untreated green jadeite gem. Cabochons like this are very difficult to photograph.

Fully certified by IGI in Antwerp, confirming the gem as untreated jadeite jade, referred to as ‘A’ grade in the trade.