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20th Century Loose Gemstones

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Period: 20th Century
1.48ct Titanium Purple Natural Spinel Oval Cut 8.2x5.8mm Loose Rare Gem
Located in Birmingham, GB
1.48ct Titanium Purple Natural Spinel Oval Cut 8.2x5.8mm Loose Rare Gem Natural Purple ‘Titanium’ Spinel Gemstone. Beautiful 1.48 Carat spinel with a grey purple colour, referred to...
Category

20th Century Loose Gemstones

Materials

Spinel

Oval loose ruby with cerificate 9x7mm
Located in Boca Raton, FL
Bright ruby with a certificate oval gemstone with a certificate. Measuring 9x7mm, the ruby is nice and bright pinkish red color. Certificate of authenticity comes with purchase! AB...
Category

20th Century Loose Gemstones

Materials

Ruby

Loose Tanzanite - oval cut - 17.20cts
Located in SYDNEY, AU
A loose oval cut vivid blue tanzanite of 17.20cts This stone is available to be set into the piece of your choice or kept to be admired on its own.
Category

Tanzanian 20th Century Loose Gemstones

Materials

Tanzanite

Natural loose 1.45 Carat H I1 Round Brilliance Diamond
Located in New York, NY
ITEM DESCRIPTION ID #:NYC57483 Stone Shape:Round Brilliance Diamond Weight:1.45 carat Clarity:I1 Color:H Cut: Round Measurements: 6.91 x 6.93 x 4.49 mm Appraisal Value:$2698.00 Our...
Category

20th Century Loose Gemstones

Materials

Diamond

17.86 Carat Loose Tourmaline Gemstone, Genuine Green Rectangular
Located in Greensboro, NC
This gemstone has lovely green color and an attractive rectangular cut. It would make a most excellent addition to a collection or jewelry mount! Please check out our enlarged photog...
Category

Unknown 20th Century Loose Gemstones

Materials

Tourmaline

Large Natural Citrine Gemstone W Arabic Script In Box
Located in New York, NY
A large natural citrine gemstone with curved Arabic script on both sides. The gemstone features a faceted surface that enhances its brilliance, and it is elegantly displayed in a bla...
Category

Unknown 20th Century Loose Gemstones

Materials

Citrine, Sterling Silver

Unique 0.71ct Natural Green Blue Sapphire Cushion Rare Loose Gem 6.4x5mm VS
Located in Birmingham, GB
Unique 0.71ct Natural Green Blue Sapphire Cushion Rare Loose Gem 6.4x5mm VS Unique Natural Green Blue Cushion Cut Australian Sapphire Gemstone. 0.71 Carat with a beautiful unique vi...
Category

20th Century Loose Gemstones

Materials

Blue Sapphire, Sapphire

Vivid Yellow Green Sapphire 1.58ct Round Brilliant Cut Loose Gemstone
Located in Birmingham, GB
Vivid Yellow Green Sapphire 1.58ct Round Brilliant Cut Loose Gemstone 6.5mm Natural Yellow Green Round Cut Sapphire. 1.58 Carat with a bright ye...
Category

20th Century Loose Gemstones

Materials

Sapphire, Green Sapphire

GIA Certified 1.28 Ct Emerald Cut G VVS2 Loose Diamond 7.48 x 5.32 x 3.70 mm
Located in New York, NY
GIA REPORT NUMBER: 2235024336 Shape:Emerald Cut Measurements:7.48 x 5.32 x 3.70 mm Carat Weight:1.28 carat Color Grade:G Clarity Grade:VVS2 Depth:69.5% Table:75% Girdle:Extremely Thi...
Category

20th Century Loose Gemstones

Materials

Diamond

Loose Tanzanite - 21.34 carats
Located in SYDNEY, AU
A loose emerald cut vivid blue tanzanite of 21.34cts. This stone is available to be set into the piece of your choice or kept to be admired on its own.
Category

Tanzanian 20th Century Loose Gemstones

Materials

Tanzanite

.53 Carat Loose Diamond, Marquise Cut GIA Graded Solitaire VS2 D
Located in Greensboro, NC
Shape/Cut: Marquise Clarity: VS2 Color: D Dimensions (mm): 6.92 x 4.09 x 3.25 Weight: 0.53ct GIA Report Number: 5191372370 Please check out the enlarged pictures. Thank you f...
Category

Unknown 20th Century Loose Gemstones

Materials

Diamond

.46 Carat Loose Diamond, Marquise Cut GIA Graded Solitaire SI2 D
Located in Greensboro, NC
Shape/Cut: Marquise Clarity: SI2 Color: D Dimensions (mm): 6.90 x 3.98 x 2.88 Weight: 0.46ct GIA Report Number: 2195938984 Please check out the enlarged pictures. Thank y...
Category

Unknown 20th Century Loose Gemstones

Materials

Diamond

Natural Myanmar Bi-color Double Side Carved Ancient Dragon Jade
Located in Kowloon, HK
Prepare to embark on a captivating journey through the ages with this stunning natural jadeite pendant, imbued with the ancient essence of the legendary dragon. Sourced directly fro...
Category

Hong Kong Artisan 20th Century Loose Gemstones

Materials

Jade

1.12 Carat Loose Diamond, Cushion Cut GIA Graded I1 L Solitaire
Located in Greensboro, NC
Shape/Cut: Cushion Clarity: I1 Color: L Dimensions (mm): 5.84 x 5.62 x 3.88 Weight: 1.12ct GIA Report Number: 2193793328 Please check out the enlarged pictures. Thank you for...
Category

Unknown 20th Century Loose Gemstones

Materials

Diamond

Natural 2.28ct Vivid Pink Red Rhodolite Garnet Cushion Loose Gemstone
Located in Birmingham, GB
Natural 2.28ct Vivid Pink Red Rhodolite Garnet Cushion 8.7x7mm Loose Gemstone Natural Loose Rhodolite Garnet Gem. 2.28 Carat with a beautiful...
Category

20th Century Loose Gemstones

Materials

Garnet, Rhodolite

12.40 Carats Fanta Natural Loose Hessonite Smoky Garnet Lot For Jewelry Making
Located in Peshawar, PK
Loose Hessonite Garnet Weight: 12.40 Carats Size: 2.60 to 3.79 Carats Origin: Africa Shape: Mix Treatment: Non Clarity: Smoky A 12.40-carat Hessonite Garnet lot is a remarkable c...
Category

Tanzanian Arts and Crafts 20th Century Loose Gemstones

Materials

Garnet, Hessonite

1.61 Carat Loose Sapphire, Oval Orange Pink AGL Graded Solitaire
Located in Greensboro, NC
Shape/Cut: Oval Color: Orange Pink Dimensions (mm): 7.09 x 6.17 x 4.59 Weight: 1.61ct Treatment: No Heat AGL Report Number: GB 1087001 Please check out the enlarged pictures...
Category

Unknown 20th Century Loose Gemstones

Materials

Sapphire

Magnificent Australian Loose Black Boulder Opal of 5.50ct. 19mm x 12mm x 4mm.
Located in MELBOURNE, AU
This Australian Loose Boulder Opal is of impressive 5.50ct (19mm x 12mm x 4mm) from Winton, Queensland displaying the superb & truly unique spectrum of colours: from striking Indigo & Sky Blue to superb vivid Emerald Green The beauty of this spectacular opal is truly dazzling, particularly under different lightings: the gem displays the most magnificent spectrum The gem can be set in precious metals & turned into a piece of jewelry (pendant for example) - please message us for details! Australian Boulder opal is the second most valuable type of opal. Mined from the large ironstone boulders under the ground, boulder opals are easily recognisable by the layer of solid brown ironstone...
Category

Australian Vintage 20th Century Loose Gemstones

Materials

Opal

6.14 Carat Tourmaline Gemstone, Cushion Cut Blue Green Loose Solitaire
Located in Greensboro, NC
Shape/Cut: Cushion Color: Blue Green Origin: Afghanistan Dimensions (mm): 11.3 x 9.1 x 8.3 Weight: 6.14ct This gemstone was cut by Clay Zava of Zava Mastercuts. Please check ou...
Category

Afghan 20th Century Loose Gemstones

Materials

Tourmaline

GIA Certified Old-Mine Cut Loose Diamond 1.08ct
Located in Laguna Beach, CA
1.08 carat old-mine cut diamond. GIA graded E color, VS1 clarity. GIA grading report number is 1236538153. Comes with a full certificate.
Category

20th Century Loose Gemstones

Materials

Diamond

GIA Certified Emerald Cut Diamond 3.21ct
Located in Laguna Beach, CA
3.21 carat emerald cut diamond. GIA graded H color, VS2 clarity, Symmetry good. GIA report number 5232499011 is laser inscribed on the diamonds girdle edge. Comes with full GIA gradi...
Category

20th Century Loose Gemstones

Materials

Diamond

Loose Tanzanite - 13.38 carats - emerald cut
Located in SYDNEY, AU
A loose emerald cut vivid blue tanzanite of 13.38ct. This stone is available to be set into the piece of your choice or kept to be admired on its own.
Category

Tanzanian 20th Century Loose Gemstones

Materials

Tanzanite

Diamond brilliant 1.87ct
Located in Berlin, BE
Natural Diamond Report Carat: 1.87 carats Clarity: P2 Color: L Cut: Fair Symmetry: Fair Proportion: Fair Polish: Good Fluorescence: Strong Girdle: Rubbed Culet: Pointed Ad...
Category

German Aesthetic Movement Vintage 20th Century Loose Gemstones

Materials

Diamond

Extra Large 22k Natural Crystalized Sponge/Leaf Gold Nugget Specimen 116.7 Grams
Located in New York, NY
This exceptional natural gold nugget specimen weighs 116.7 grams and features intricate crystallized sponge and leaf-like formations, with approximately 50 grams of pure 22k gold. Or...
Category

20th Century Loose Gemstones

Materials

Quartz

GIA Certified Pear Shaped Loose Diamond 2.07ct
Located in Laguna Beach, CA
2.07 carat pear shape brilliant diamond. GIA graded I color, I1 clarity, symmetry good. GIA report number is 2231570124. The diamond has a nice shape and faces up brilliantly. Comes ...
Category

20th Century Loose Gemstones

Materials

Diamond

1.60 Carats Natural Loose Red Burmese Spine Ring Gemstone
Located in Peshawar, PK
Loose Spinel Weight: 1.60 Carats Dimension: 6.3x6.2x4.5 Mm Origin: Burma / Myanmar Treatment: Non Color: Red Shape: Cushion certificate: on demand Red spinel is a mesmerizing gemst...
Category

Burmese Aesthetic Movement 20th Century Loose Gemstones

Materials

Spinel

GIA Certified Round Brilliant Cut Loose Diamond 1.00ct
Located in Laguna Beach, CA
1.00 carat round brilliant cut diamond. GIA graded E color, i3 clarity. The GIA report number is 2239388857. They were overly harsh on the clarity grade. Nothing can be seen with the...
Category

20th Century Loose Gemstones

Materials

Diamond

NEW HUGE GORGEOUS Natural Certified Pink Orange Coral 50.65 Carats
Located in Warren, NJ
Introducing an exquisite gemstone that will leave you in awe! This gorgeous coral boasts a vivid pink orange color with a stunning oval shape, weighing 50.65 carats and comes with ce...
Category

20th Century Loose Gemstones

Materials

Coral

Natural Myanmar Handcrafted Rabbit Loose White Jade Jadeite, Big Bunny
Located in Kowloon, HK
Introducing our exquisite White Bunny Jade, a meticulously hand-crafted masterpiece that is truly one-of-a-kind. Carefully designed by our skilled artisans, this remarkable jadeite r...
Category

Hong Kong Artisan 20th Century Loose Gemstones

Materials

Jade

Vintage Decorative Painted Resin Dog Heads
Located in New York, NY
A lot of vintage hand-painted resin dog heads. A total of 5 items, two designs. Each piece has a fitting hole on the backside. Miscellanea, Collectibles, Acc...
Category

Unknown 20th Century Loose Gemstones

Materials

Sterling Silver

GIT Certified 2.47ct Oval Pink Sapphire, 9.24x7.44x4.09 mm
Located in เกาะสมุย, TH
Sapphire fans please do not miss: This particular pink sapphire has very good hot pink saturated color. The sapphire shape is oval step cut and was polished in Thailand. Some natural...
Category

Thai 20th Century Loose Gemstones

Materials

Pink Sapphire

Loose Emerald cut Emerald - 2.58ct - Origin Brazil - GSL certificate
Located in SYDNEY, AU
A loose emerald of 2.58ct, of emerald cut. Origin Brazil. This stone is available to be set into the piece of your choice or kept to be admired on its own.
Category

Brazilian 20th Century Loose Gemstones

Materials

Emerald

Vintage Mutton Fat White Jade Dragon Carving
Located in New York, NY
Expertly carved from highly prized mutton fat white jade, this vintage piece depicts a stylized dragon in a reclining pose, featuring intricate swirling details and pierced accents. ...
Category

20th Century Loose Gemstones

Materials

Jade

GIA Certified Round Brilliant Cut Loose Diamond 1.78ct
Located in Laguna Beach, CA
GIA graded 1.78 carat round brilliant cut diamond. M color, slightly yellow. The clarity is i1 with an inclusion well hidden under the crown facets. The di...
Category

20th Century Loose Gemstones

Materials

Diamond

Loose Tanzanite - Trilliant cut - 11.95cts
Located in SYDNEY, AU
A loose trilliant cut vivid blue tanzanite of 11.95ct This stone is available to be set into the piece of your choice or kept to be admired on its own.
Category

Tanzanian 20th Century Loose Gemstones

Materials

Tanzanite

GIA Certified Round Brilliant Loose Diamond 1.01ct
Located in Laguna Beach, CA
GIA Certified Round Brilliant Loose Diamond. 1.01 carat round brilliant cut diamond. GIA graded F color, Si2 clarity. The GIA grading report number is 2235411157. Comes with a full G...
Category

20th Century Loose Gemstones

Materials

Diamond

Pair of Loose Matching Pink Natural Tourmalines, Baguette Cut, 5.00ct (in total)
Located in MELBOURNE, AU
Pair of Matching Baguette Cut Loose Natural Intense Pink Tourmalines of excellent clarity Measurements of each: 13.5mm x 6mm Total carat weight: 5.00ct.
Category

Australian 20th Century Loose Gemstones

Materials

Tourmaline

Matching Pair of 4ct Each Old Europoean Diamonds
Located in Ramat Gan, IL
Matching Pair of 4ct Each Old European Diamonds** Discover the timeless elegance of this **matching pair of 4-carat each Old European cut diamonds**—an extraordinary find for collec...
Category

20th Century Loose Gemstones

Materials

Diamond

Australian Loose Solid Opal of 7.50ct (27mm x 12mm). Lightning Ridge.
Located in MELBOURNE, AU
This Australian Loose Solid Opal is of impressive 7.50ct (27mm x 12mm) from Lightning Ridge Displaying truly unique spectrum of colours, with striking flashes of orangy-yellow, f...
Category

Australian Vintage 20th Century Loose Gemstones

Materials

Opal

Australian Loose Solid Opal of 7.50ct (18mm x 15mm). Lightning Ridge.
Located in MELBOURNE, AU
This Australian Loose Solid Opal is of impressive 7.50ct (18mm x 15mm) of unusual triangle shape, from Lightning Ridge Displaying truly unique spectrum of colours, with striking f...
Category

Australian Vintage 20th Century Loose Gemstones

Materials

Opal

Antique Jade Gourd Carving
Located in New York, NY
This antique jade carving features a gourd form intricately detailed with flowing vine motifs. The craftsmanship captures the natural curves and textures of the gourd and tendrils, s...
Category

20th Century Loose Gemstones

Materials

Jade

Loose Natural Tourmaline, Baguette Cut, 4.50ct., Vivid Bright Red
Located in MELBOURNE, AU
Baguette Cut Loose Natural Vivid Red Tourmaline Excellent clarity Measurements: 17mm x 6mm x 4mm Carat weight: 4.50ct.
Category

Australian Vintage 20th Century Loose Gemstones

Materials

Tourmaline

Antique Hardstone Intaglio - Unset Gemstone - Europe - Early 20th Century
Located in Chatham, CA
Antique Roman style hardstone intaglio gemstone - hand carved male warrior in profile - approximately 8.45 carats - unset (loose) - unsigned - Europe - early 20th century. Excellent...
Category

European Classical Roman 20th Century Loose Gemstones

1940s Retro Diamond Rubies 18K Yellow White Gold Tank Cocktail Ring
Located in Pamplona, Navarra
Superb tank ring, organic design typical for this period. Ring in 18 karat yellow and white gold, diamonds and rubies. Circa 1935-1940 Old European diamond cut and rond cut rubys. To...
Category

French Retro Vintage 20th Century Loose Gemstones

Materials

Diamond, Ruby, 18k Gold, White Gold, Yellow Gold

GIA Certified Round Brilliant Cut Loose Diamond 0.72ct
Located in Laguna Beach, CA
.72 carat round brilliant cut diamond. GIA graded H color, Vs1 clarity. GIA report number 2235368628.
Category

20th Century Loose Gemstones

Materials

Diamond

GIA Certified Oval Brilliant Cut Loose Diamond 1.18ct
Located in Laguna Beach, CA
Attractive oval brilliant cut diamond, 1.18 carats. GIA graded G color, VS2 clarity. GIA report number 2231308153. Comes with a full grading report.
Category

20th Century Loose Gemstones

Materials

Diamond

0.73ct Deep Blue Natural Sapphire Oval Loose Cut Gemstone VS
Located in Birmingham, GB
0.73ct Deep Blue Natural Sapphire Oval Loose Cut Gemstone 5.8x4.8mm VS Natural Green Blue Sapphire Gemstone. 0.73 Carat with a beautiful deep blue colour and good clarity, a clean s...
Category

20th Century Loose Gemstones

Materials

Sapphire, Blue Sapphire

GIA Certified 3.48 Carat Rare Pinkish Purple Sapphire
Located in San Francisco, CA
This 3.59 carat Cushion Antique shaped GIA Certified Pinkish Purple Sapphire was selected by our experts for its Rare luster.
Category

Sri Lankan 20th Century Loose Gemstones

Materials

Sapphire, Pink Sapphire, Purple Sapphire

A Round Faceted Emerald
Located in Palm Beach, FL
A Round Faceted Emerald measuring: 18.5 mm x 17.5 mm 11.7 mm deep Emerald diameter 6/8 in.
Category

20th Century Loose Gemstones

Materials

Emerald

1.05ct Fine Blue Spinel Marquise Cut Rare Gemstone 9.6x4.4mm Loose Rare Gem
Located in Birmingham, GB
1.05ct Fine Blue Spinel Marquise Cut Rare Gemstone 9.6x4.4mm Loose Rare Gem Fine Natural Vivid Blue Spinel Gemstone. 1.05 Carat spinel with a fine vivid blue colour and good clarity...
Category

20th Century Loose Gemstones

Materials

Spinel

Loose Round Brilliant Cut Diamond 1.26 ct
Located in Laguna Beach, CA
Loose round brilliant diamond, 1.26 carats. No grading lab certificate. H to I color, i1 -i2 clarity, good symmetry, and very brilliant. ...
Category

20th Century Loose Gemstones

Materials

Diamond

4.50ct Loose Intense Blue Natural Tourmaline - Indicolite, Baguette Cut.
Located in MELBOURNE, AU
Baguette Cut Loose Natural Indicolite Tourmaline of Intense Vivid Blue colour & Excellent clarity Measurements: 15mm x 6mm Carat weight: 4.50ct.
Category

Burmese 20th Century Loose Gemstones

Materials

Tourmaline, Indicolite

3.66 Carat Tanzanite Gemstone, Oval Cut Loose Solitaire
Located in Greensboro, NC
Shape/Cut: Oval Color: Purple Treatment: Routinely Enhanced Dimensions (mm): 11.1 x 9.1 Weight: 3.66ct Please check out the enlarged pictures. Thank you for taking the time to...
Category

Unknown 20th Century Loose Gemstones

Materials

Tanzanite

Loose off-round Citrine - 17.05ct
Located in SYDNEY, AU
A loose off-round cut light yellow citrine of 17.05ct This stone is available to be set into the piece of your choice or kept to be admired on its own.
Category

20th Century Loose Gemstones

Materials

Citrine

GIA Certified Oval Brilliant Loose Diamond 1.48ct
Located in Laguna Beach, CA
1.48-carat oval brilliant cut diamond. GIA graded H color, Vs1 clarity. Measures 7.89 x 6.31 x 4.51mm The grading report number is 1226958994. Comes with the original grading certifi...
Category

20th Century Loose Gemstones

Materials

Diamond

Antique Hetian White Jade Hand Carved Dragon Carving
Located in New York, NY
This exquisite antique carving is crafted from fine Hetian white jade and features a meticulously hand-carved dragon, symbolizing power, strength, and good fortune. The jade displays...
Category

20th Century Loose Gemstones

Materials

Jade

Fine 1.93ct Vivid Pink Purple Rhodolite Garnet Oval Cut Loose Gem IF
Located in Birmingham, GB
Fine 1.93ct Vivid Pink Purple Rhodolite Garnet Oval Cut Loose Gem IF 8x6.4mm Fine Loose Rhodolite Garnet Gemstone. 1.93 Carat with a beautiful vivid pink purple colour and excellent...
Category

20th Century Loose Gemstones

Materials

Garnet, Rhodolite

GIA Certified Round Brilliant Cut Loose Diamond 1.19ct
Located in Laguna Beach, CA
Round brilliant cut, 1.19 carat. GIA graded J color, Vs1 clarity, good symmetry. 57% table size is very good for brilliance. Faces up very attractive and brilliant. GIA lab gradin...
Category

20th Century Loose Gemstones

Materials

Diamond

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