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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
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
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

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

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

Related Items
Loose Diamond - Round Brilliant Cut 2.80ct GIA D VS1 Solitaire
Located in Greensboro, NC
Weight: 2.80ct Cut: Round Brilliant Color: D Clarity: VS1 Size (mm): 8.95 - 9.04 x 5.59 Certified By: GIA Report Number: 5222427796 Condition: New Please check out the enlarged...
Category

Early 20th Century Loose Gemstones

Materials

Diamond

4.56 Carat Peridot, Pear Shape, Unset Loose Gemstone
Located in Los Angeles, CA
This 4.56 carat pear shaped peridot would make a beautiful custom-made ring or pendant! It has gorgeous apple green color, a beautiful shape and eye-catching sparkle. Measuring 13.30...
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American Artisan Early 20th Century Loose Gemstones

Materials

Peridot

GIA Certified 18.0+ Carat Emerald Cut Diamond
Located in New York, NY
Gorgeous Emerald Cut Diamond over 18 Carats (please inquire about exact weight) GIA Certified as I color and VS2 clarity. Please inquire for stones in any shape, size and quality.
Category

Early 20th Century Loose Gemstones

Materials

Diamond

65.49 Carat Amethyst Oval, Unset Loose Gemstone
Located in Los Angeles, CA
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...
Category

Artisan Early 20th Century Loose Gemstones

Materials

Amethyst

65.49 Carat Amethyst Oval, Unset Loose Gemstone
65.49 Carat Amethyst Oval, Unset Loose Gemstone
$1,965
W 0.91 in D 0.7 in L 1.15 in
7.16 Carat Precious Imperial Topaz Oval, Unset Loose Gemstone
Located in Los Angeles, CA
This beautiful 7.16 carat precious topaz has brilliant apricot-orange color and exceptional clarity! Measuring 13.43 x 9.40 x 7.08 millimeters, this beautifully well-proportioned ova...
Category

Early 20th Century Loose Gemstones

Materials

Topaz, Imperial Topaz

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 ) . J color is in the "near-colorless" range which means that it contains noticeable color only when compared side to side to higher color grades. It still typically appears colorless face up that is why J color diamonds...
Category

Contemporary Early 20th Century Loose Gemstones

Materials

Diamond

Certified 3, 01 Carat Diamond J VS1
Certified 3, 01 Carat Diamond J VS1
$31,816 Sale Price
20% Off
W 0.38 in L 0.38 in
5.61 Carat Pear Shaped Tanzanite, Unset Loose Gemstone
Located in Los Angeles, CA
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

Materials

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

Artisan Early 20th Century Loose Gemstones

Materials

Tourmaline

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...
Category

Artisan Early 20th Century Loose Gemstones

Materials

Garnet, Mandarin Garnet

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

Early 20th Century Loose Gemstones

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...
Category

American Early 20th Century Loose Gemstones

Materials

Diamond

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...
Category

Unknown Early 20th Century Loose Gemstones

Materials

Jade, Sterling Silver

GIA Certified 5231058396 No Heat Red Burma Cabochon Ruby 4.63 Carats
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
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

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