Early 20th Century Loose Gemstones
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Period: Early 20th Century
GIA Certified No Treatment Octagonal Natural Quartz Citrine Weighing 42.43 Carat
By OGI Ltd
Located in New York, NY
Rarity is an essential factor in determining the value of gemstones.
Natural citrines are rarer than amethysts or smoky quartz because they occur less frequently in nature. The abse...
Category
Malagasy Contemporary Early 20th Century Loose Gemstones
Materials
Citrine, Quartz
GIA Certificated Oval Carved Double Sided Cabochon Emerald Weighing 53.64 Carats
By OGI Ltd
Located in New York, NY
G I A G EMO L O G IC A L R E P O R T
EMERALD REPORT
GIA REPORT 522173152
Shape Oval Carved Double Cabochon
Transparency Translucent
Color Green
Species Natural Beryl
TREATMENT Clarity Enhanced (F2)
One loose stone
Weight: 53.64 carats
Measurements: 26.97 x 19.90 x 12.90 mm
An oval carved double-sided cabochon emerald weighing 53.64 carats, certified by GIA (Gemological Institute of America), can be considered rare and valuable
Comments: Due to their growth conditions in nature and recovery methods, most emeralds contain surface reaching features. For this reason, clarity enhancement is a common trade practice
Larger emeralds are generally rarer and more valuable, assuming all other quality factors are favorable
GIA is the most established certification company in the world. They have been around since 1931 and are the foremost authority on diamonds, gems and pearls. They are a non-profit organization that sets the standards for jewels and identification world-wide.
Gemstones are rare natural resources of nature. Each gemstone is unique. One can compare the market for gemstones well with the art market
Untreated gemstones are best suited for investment. In the case of sapphire and ruby, this implies that they are not heated, as 98...
Category
Colombian Contemporary Early 20th Century Loose Gemstones
Materials
Emerald
LFG Certified 3.78 K/VS1 Antique Old European Round Brilliant Cut Diamond
Located in Paris, FR
This Antique Old European Round Brilliant cut Diamond weights 3.78 carats with a K color (Beautiful white face up) and VS1 Clarity (Loupe Clean).
The high quality of its cut let the ...
Category
Unknown Belle Époque Vintage Early 20th Century Loose Gemstones
Materials
Diamond
GIA Certified Old European Cut 1.49ct J VS2 Diamond
Located in New York, NY
This stunning GIA-certified 1.49-carat Old European cut diamond features timeless vintage charm with modern assurance. Graded J color and VS2 clarity, the stone offers exceptional br...
Category
Early 20th Century Loose Gemstones
Materials
Diamond
42.82 Carat Old European Diamond Layout – GIA Certified
Located in Ramat Gan, IL
Exceptional 42.82 Carat Old European Diamond Layout – GIA Certified
An extraordinary collection of 19 Old European cut diamonds, totaling an impressive 42.82 carats. This meticulous...
Category
European Early 20th Century Loose Gemstones
Materials
Diamond
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 Early 20th Century Loose Gemstones
Antique Carved Red Coral Rooster
Located in New York, NY
This striking sculpture captivates with its intricate design and vibrant red hue. Carved from a single piece of coral, it features a detailed rooster perched elegantly beside a textu...
Category
Early 20th Century Loose Gemstones
Materials
Coral
5.65 Carats Natural Loose Citrine CAN Shape Ring Gem
Located in Peshawar, PK
Loose Citrine
Weight: 5.65 Carats
Dimension: 12.1x9.3x7.6 Mm
Origin: Brazil
Color: Yellow
Treatment: Non
Certificate: On Demand
Citrine, a radiant and vibrant gemstone, is prized f...
Category
Brazilian Art Deco Antique Early 20th Century Loose Gemstones
Materials
Citrine
$200 Sale Price
20% Off
20.30 Carats Natural Loose Lime Yellow Citrine Round Cut for Necklace Jewelry
Located in Peshawar, PK
Faceted Citrine
Weight: 20.30 Carats
Dimension: 19.1x19.1x10.8 Mm
Origin: Brazil
Color: Yellow
Shape: Round
Certificate; On Customer Demand
.
Citrine, a gemstone of warm and ra...
Category
Brazilian Artist Early 20th Century Loose Gemstones
Materials
Citrine
$216 Sale Price
20% Off
Round Brilliant Cut Loose Diamond 0.94 ct
Located in Laguna Beach, CA
Loose .94 carat round brilliant cut
No grading certificate.
Grading is done by a GIA graduate gemologist.
The color is H to i color, Si to i1 clarity.
There is a small feather under an outer crown facet...
Category
Early 20th Century Loose Gemstones
Materials
Diamond
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65.49 Carat Amethyst Oval, Unset Loose Gemstone
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This luscious royal purple amethyst weighs 65.49 carats and would make a perfectly regal and eye-catching pendant! It is beautifully faceted and crystal clean, with velvety rich purp...
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7.16 Carat Precious Imperial Topaz Oval, Unset Loose Gemstone
Located in Los Angeles, CA
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Certified 3, 01 Carat Diamond J VS1
Located in Monte Carlo, MC
Gorgeous 3,01 carat J VS1 diamond. The stone is very nicely cut and rather well spread ( it looks like most 3,25ct ) .
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Category
Contemporary Early 20th Century Loose Gemstones
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Diamond
5.61 Carat Pear Shaped Tanzanite, Unset Loose Gemstone
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Have you been dreaming of a tanzanite? It may be time to treat yourself to this vivid pear shaped tanzanite! Weighing 5.61 carats, it is the perf...
Category
Artisan Early 20th Century Loose Gemstones
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Tanzanite
3.28 Carat Bi-Color Watermelon Tourmaline, Unset Loose Gemstone
Located in Los Angeles, CA
This pretty bi-color tourmaline is a beautiful marriage of pink and green of equal saturation, vibrance and clarity. While we have called this a "bi-colored" tourmaline because it di...
Category
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1.62 Carat Tsavorite Garnet Cushion, Unset Loose Gemstone
Located in Los Angeles, CA
This pretty tsavorite garnet is so bright and lively! The perfect shade of spring green, this gem measures 7.01 x 6.88 x 3.70 millimeters and weighs 1.62 carats. It would be beautiful set in a ring or pendant, is eye clean, and such a happy color! A decade or two ago, these unusual gems were well-known only to colored gem dealers, collectors and exclusive jewelers, but thanks to advances in technology, this lovely variety of garnet is now accessible to more people than ever. Treat yourself to a gem for the holidays - any holiday, like today!
Custom designs available.
We have a large collection of unmounted garnets...
Category
Artisan Early 20th Century Loose Gemstones
Materials
Garnet, Tsavorite
2.77 Carat Oval Mandarin Garnet, Unset Loose Gemstone
Located in Los Angeles, CA
This vibrant Mandarin orange colored garnet is absolutely beautiful! The unusual checkerboard design allows for exceptional brilliance and an exquisite display of color and life. Thi...
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GIT Certified 221.4 Ct Natural Topaz no treatment Brazil collection size
Located in bangkok, TH
TPA06
Name: Natural Topaz
weight: 221.4 Carats
size: 33.5*34.7*22.5mm
origin: Brazil
color: light champagne
clarity: eye clean
certificate: GIT ( Thailand national certification)...
Category
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Materials
Topaz
1 Carat Emerald Certified Loose Diamond - J SI2, GIA Certified
Located in Tustin, CA
This stunning 1.00-carat emerald-cut diamond radiates elegance with its timeless shape and exceptional sparkle. Graded J color by the GIA, it offers a warm brilliance, making it an e...
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Previously Available Items
Antique Vintage Islamic Carved Jade Calligraphy Seals
Located in New York, NY
A group of six antique and vintage Islamic carved jade seals adorned with Arab calligraphy. Each seal bears intricate carvings of Arabic script, showcasing t...
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Unknown Early 20th Century Loose Gemstones
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Jade, Sterling Silver
GIA Certified 5231058396 No Heat Red Burma Cabochon Ruby 4.63 Carats
By OGI Ltd
Located in New York, NY
GIA Certified 5231058396 No Heat Red Burma Cabochon Ruby 4.63 Carats
Discover the exquisite beauty of this GIA certified No Heat Red Burma Cabochon Ruby, a rare gemstone that boasts ...
Category
Burmese Contemporary Early 20th Century Loose Gemstones
Materials
Ruby
GIA Certified No Heat Pear Shape Carving Natural Sapphire Weighing 4.70 Carats
By OGI Ltd
Located in New York, NY
GIA-certified No Heat Pear Shape Carving Natural Sapphire weighing 4.70 carats can be considered a valuable gemstone.
GIA REPORT 222171092
Shape Pear Shape Carving
Transparency Transparent
Color Blue
Species Natural Corundum
Natural Sapphire
TREATMENT: No Indications of Heating
One loose stone
Weight: 4.70 carats
Measurements: 12.79 x 10.63 x 3.33 mm
GIA is the most established certification company in the world. They have been around since 1931 and are the foremost authority on diamonds, gems and pearls. They are a non-profit organization that sets the standards for jewels and identification world-wide.
Gemstones are rare natural resources of nature. Each gemstone is unique. One can compare the market for gemstones well with the art market
Untreated gemstones are best suited for investment. In the case of sapphire and ruby, this implies that they are not heated, as 98...
Category
Burmese Contemporary Early 20th Century Loose Gemstones
Materials
Sapphire
W 0.52 in D 0.12 in L 0.44 in
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