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USA - Loose Gemstones

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Item Ships From: USA
2.2ct Emerald Cut CLEAN Natural Greenish Blue Sapphire Gemstone
By Hannaboya
Located in Lanham, MD
What an extraordinary gemstone, an emerald-cut teal blue sapphire of unparalleled elegance. With its greenish blue hue, this gemstone captivates the eye with its subtle sophisticatio...
Category

2010s African Modern USA - Loose Gemstones

Materials

Sapphire, Blue Sapphire

Collection Of Six Ancient Islamic Intaglio Seals
Located in New York, NY
A lot of three ancient Roman colorful intaglio seals. Circa 1st to 3rd centuries AD. The two pieces are crafted from carnelian and feature a hand carved image of the god Mercury wear...
Category

15th Century and Earlier European Antique USA - Loose Gemstones

Materials

Sterling Silver

4.2ct Light Green Emerald Gemstone
By Hannaboya
Located in Lanham, MD
Introducing our exquisite 4.2-carat Light Green Emerald Gemstone, a symbol of elegance and natural beauty. This gemstone features a delicate light green hue that exudes freshness and...
Category

2010s African Contemporary USA - Loose Gemstones

Materials

Emerald

No Oil, Matched Pair of Colombian Cushion-Cut Emeralds, Gübelin Certified
Located in New York, NY
This perfectly matched pair of Colombian cushion-cut emeralds, totaling 5.16 carats, is a rare and collectible find. Both stones are Gübelin-certified and carry "No Indications of Cl...
Category

2010s USA - Loose Gemstones

Materials

Emerald

3.11ct Round NATURAL Teal Greenish BLUE SAPPHIRE Gemstone
By Hannaboya
Located in Lanham, MD
Experience the epitome of authentic beauty and luxury with 3.11ct Round Brilliant Cut Natural Teal Blue Sapphire Loose Gemstone. This exquisite gem exudes a deep and alluring blue hu...
Category

2010s African Artisan USA - Loose Gemstones

Materials

Blue Sapphire

1.20ct Emerald Cut BLUE INDICOLITE TOURMALINE Gemstone
By Hannaboya
Located in Lanham, MD
Discover the captivating charm of this rare color 1.20-carat Emerald Cut Blue Indicolite Tourmaline Loose Gemstone. Gemstone Details: Ca...
Category

2010s African Modern USA - Loose Gemstones

Materials

Indicolite, Tourmaline

Ancient Persian Sasanian Empire Emerald Intaglio Seal
Located in New York, NY
An ancient Persian Sasanian Empire hand carved Emerald intaglio bead seal. Carved Gemstones, Ancient Artifacts and Historical Memorabilia For Collector...
Category

19th Century Unknown Antique USA - Loose Gemstones

Materials

Emerald, Sterling Silver

Loose Oval Australian Opal Gemstone
Located in Towson, MD
This striking loose oval Australian opal measures 11.59 x 15.45 mm with a depth of 3.49 mm, and weighting 0.76 grams, showcases a mesmerizing play-of-color across its broad face. Min...
Category

20th Century Australian Contemporary USA - Loose Gemstones

Materials

Opal

Antique Victorian Red Coral Intaglio Seal Bead
Located in New York, NY
An antique 19th-century stone intaglio seal bead. Round shape, faceted surface. The intaglio depicts a rose flower. Victorian Collectibles, Mineral Stone Carvings, Stamps And Seals. ...
Category

19th Century European Antique USA - Loose Gemstones

Materials

Coral, Sterling Silver

GIA Certified 0.81 Carat Cushion Fancy Deep Orangy Yellow Natural Diamond
By Diamond Stars Jewelry, Inc.
Located in New York, NY
Loose Diamond GIA Certified This is a Natural Diamond Cushion Modified Brilliant Cut The diamond is 0.81 Carat SI1 Clarity The color is Fancy Deep Orangy Yellow The stone measures 5....
Category

21st Century and Contemporary Unknown Contemporary USA - Loose Gemstones

Materials

Diamond, Yellow Diamond

1.51 Carat Round Shape Natural Diamond
Located in Great Neck Plaza, NY
1.51 Carat Round Shape Natural Diamond Average Color I, Clarity SI3 Measurements: 6.5 - 6.7 x 4.5 mm
Category

2010s American USA - Loose Gemstones

Materials

Diamond, 14k Gold, Yellow Gold

AGL Certified Gemstone Natural Corundum Pink Sapphire Weighing 2.92 Carats
By OGI Ltd
Located in New York, NY
AGL certificate Natural Pink Sapphire weighing 2.92 carats Purplish Pink Color Oval Shaped, mix cut Heated Color Stability Excellent Measuring 8.63x7.11x5.10 mm Natural corundum pi...
Category

Mid-20th Century Sri Lankan Contemporary USA - Loose Gemstones

Materials

Pink Sapphire

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

Early 20th Century Colombian Contemporary USA - Loose Gemstones

Materials

Emerald

Loose GIA Certifed 0.94ct J Si1 Old European Cut Diamond
Located in Amsterdam, NL
This is an a geniune antique 0.94ct old european cut diamond. The color is J and the clarity is Si1; the diamond faces up quite white and it is eye-clean. Importantly, it is GIA certified. The diamond will come in a black velvet display case...
Category

1890s Antique USA - Loose Gemstones

Materials

Diamond

GIA Certified Carved Colombia Emerald Loose Stone Weighing 4.35 Carats
By OGI Ltd
Located in New York, NY
Introducing our exquisite GIA certified carved Colombia Emerald loose stone, a true masterpiece of nature. This captivating gem weighs a remarkable 4.35 carats, making it a truly val...
Category

20th Century Colombian Contemporary USA - Loose Gemstones

Materials

Emerald

1.7ct EGL-Certified Emerald-Cut Natural Unheated Sapphire – Medium Yellow-Green
By Hannaboya
Located in Lanham, MD
1.7ct EGL-Certified Emerald-Cut Natural Unheated Sapphire – Medium Yellow-Green Hue This 1.7-carat emerald-cut sapphire stands out as a rare, natural gemstone of exceptional quality...
Category

2010s African Artisan USA - Loose Gemstones

Materials

Sapphire, Green Sapphire, Blue Sapphire

SAMPLE SALE GIA 2.37 Carat Cushion Cut Fancy Yellow Natural Loose Diamond
Located in Great Neck Plaza, NY
GIA natural cushion cut diamond weighs 2.37 Carats. Color: Natural Fancy Dark Brown-Greenish Yellow *Free shipping within the US
Category

2010s American USA - Loose Gemstones

Materials

Diamond, 14k Gold, White Gold

12.93-Carat Natural Oval-Cut Sapphire
Located in Great Neck Plaza, NY
Exquisite 12.93-Carat Natural Oval-Cut Sapphire Elevate your collection with this exceptional 12.93-carat natural oval-cut sapphire, a true treasure for connoisseurs of fine gemston...
Category

2010s American USA - Loose Gemstones

Materials

Sapphire, 14k Gold, Yellow Gold

SALE GIA 12.21 Carat Fancy Color Oval Shape Loose Diamond
Located in Great Neck Plaza, NY
GIA 12.21 Carat Fancy Color Oval Shape Loose Diamond Semi Translucent Color Brown-Orange
Category

2010s American USA - Loose Gemstones

Materials

Diamond, Yellow Diamond

2.0ct Round NATURAL Eye Clean Teal SAPPHIRE Gemstone-No Enhancement
By Hannaboya
Located in Lanham, MD
Embrace the allure of the ocean with our EYE CLEAN 2.0ct Round Teal Natural Unheated Sapphire Gemstone. This stunning gemstone boasts a unique teal hue that evokes the mystery and ch...
Category

2010s African Artisan USA - Loose Gemstones

Materials

Sapphire, Blue Sapphire, Green Sapphire

GIA Certified 5.01 Carat Oval Cut D-IF Diamond Loose Gemstone
Located in Trumbull, CT
A GIA certified 5.01-carat, D color, IF (Internally Flawless) clarity Oval cut loose diamond. Set it in your custom-designed jewelry for an extraordinary piece. Measurement: 14.82 x...
Category

21st Century and Contemporary USA - Loose Gemstones

Materials

Diamond

2.11 Carat 10x8 Medium Bluish Green Colombian Emerald - Oval Cut May Gemstone
Located in Jupiter, FL
Stone: Emerald Weight: 2.11-carats Shape: Oval Cut Clarity: Semi-Transparent Luster: Good Color: Medium Bluish Green Measurements: 9.65mm x 7.75mm x 4.48mm Geographic Origin: Colombi...
Category

2010s Colombian Modern USA - Loose Gemstones

Materials

Emerald

SAMPLE SALE GIA 1.66 Carat Radiant Cut Fancy Brown Yellow Loose Diamond
Located in Great Neck Plaza, NY
Diamond Overview: This stunning 1.66 carat radiant cut loose diamond offers a unique combination of earthy beauty and brilliance. With a fancy brown-yellow color grade, this diamond...
Category

2010s American USA - Loose Gemstones

Materials

Diamond, 14k Gold, Yellow Gold

CLOSE OUT GIA 2.25 Carat Fancy Brown-Greenish Yellow Round Diamond
Located in Great Neck Plaza, NY
Natural GIA 2.25 Carat Fancy Brown-Greenish Yellow Round Diamond.
Category

2010s American USA - Loose Gemstones

Materials

Diamond, Brown Diamond, Gold, 14k Gold, White Gold

GIA Certified 5.10 Carat Lucida Cut Tiffany & Co. I-VS1 Loose Diamond
By Tiffany & Co.
Located in Miami, FL
GIA Certified 5.10 carat Lucida cut loose natural diamond with I color and VS1 clarity. A rare patented cut made exclusively by Tiffany & Co. A genius mix between a step cut and a br...
Category

21st Century and Contemporary Modern USA - Loose Gemstones

Materials

Diamond

SAMPLE SALE 2.25 Carat Fancy Dark Green Round Diamond
Located in Great Neck Plaza, NY
2.25 Carat Fancy Dark Green Round Diamond. *Free shipping within the US
Category

2010s American USA - Loose Gemstones

Materials

Diamond, Brown Diamond, Gold, 14k Gold, White Gold

32.75 Carat Emerald Cut Watermelon Tourmaline
Located in New York, NY
This striking 32.75-carat Watermelon Tourmaline showcases a rare and highly desirable bi-color transition, blending delicate blush pink into rich teal blue with natural clarity and b...
Category

2010s Brazilian USA - Loose Gemstones

Materials

Other, Tourmaline

GIA Certified 1.13ct Natural Alexandrite Color change 54774
By Unbranded
Located in New York, NY
GIA Certified Natural Alexandrite 1.13ct Transparent Cushion Cut 6.98 x 4.78 x 3.83 Report #6204425887 Stating Color Change Blue Green - Gray Purple
Category

21st Century and Contemporary Russian Empire USA - Loose Gemstones

Materials

Alexandrite

1.25 Ct Blue Sapphire Octagon Cut Loose Gemstone
Located in Fort Lee, NJ
A highly precious September birthstone with a delighting blue color. They are believed to bring good luck & fortune to life. Explore vibrant collection of Emerald, Ruby & Sapphires ...
Category

2010s Sri Lankan USA - Loose Gemstones

Materials

Blue Sapphire

8.46 Carat GIA Colombian Emerald - Bluish Green Cushion Cut Loose Gem
Located in Jupiter, FL
Stone: Emerald Weight: 8.46-carats Shape: Cushion Cut Clarity: Transparent Luster: Excellent-Very Good Color: Bluish Green Measurements: 12.63mm x 11.70mm x 8.81mm Geographic Origin:...
Category

2010s Colombian Modern USA - Loose Gemstones

Materials

Emerald

Natural Green Russian Demantoid Garnet Gemstone 0.63 carats
Located in Los Angeles, CA
This rare Russian demantoid garnet showcases a captivating green hue with exceptional brilliance. Its brilliant/step cut enhances light dispersion, creating a fiery sparkle unique to...
Category

21st Century and Contemporary Russian USA - Loose Gemstones

Materials

Garnet

High-Grade Natural Citrine Geode from Uruguay
Located in Beaverton, OR
This Citrine Geode, selected from the rich mineral deposits of Uruguay, radiates a warm golden glow. This unique piece's naturally formed crystal clusters create a stunning visual ef...
Category

2010s Uruguayan USA - Loose Gemstones

Materials

Citrine, Geode

4.285ct NATURAL RUBY Octagonal Cut Loose Gemstone
By Hannaboya
Located in Lanham, MD
Elevate your jewelry designs with the captivating allure of our 4.285 100% Natural Ruby Octagonal Cut Loose Gemstone. This exquisite gem, with its mesmerizing pink hue and unique oct...
Category

2010s African Artisan USA - Loose Gemstones

Materials

Ruby

1.63ct 9.3x7.2 Cloudy Bluish Green Colombian Emerald - Oval Cut Gemstone
Located in Jupiter, FL
Stone: Emerald Weight: 1.63-carats Shape: Oval Cut Clarity: Semi-Transparent Luster: Good Color: Medium-Light Bluish Green Measurements: 9.25mm x 7.17mm x 4.44mm Geographic Origin: C...
Category

2010s Colombian Modern USA - Loose Gemstones

Materials

Emerald

SAMPLE SALE GIA 8.17 Carat Natural Fancy Yellow Round Loose Diamond
Located in Great Neck Plaza, NY
GIA 8.17cts Natural fancy deep brownish yellow round loose diamond *Free shipping within the U.S.*
Category

2010s American USA - Loose Gemstones

Materials

Yellow Diamond, Diamond, 14k Gold, Yellow Gold

3.00 Ct Ruby Oval Loose Gemstone
Located in Fort Lee, NJ
An exquisite red color birthstone for July, believed to convey a status of power & wealth. Explore vibrant collection of Emerald, Ruby & Sapphires in our store available as a loose ...
Category

2010s Malagasy USA - Loose Gemstones

Materials

Ruby

Collection of Aquamarine, Tourmaline & Kunzite Stones Cabochon Stones 243 tcw
Located in Cincinnati, OH
18 beautiful, oval cabochon loose stones in this collection. Could be used individually or together in rings, necklaces, earrings, etc. Lots of possib...
Category

2010s American USA - Loose Gemstones

Materials

Aquamarine, Kunzite, Tourmaline

Eye Clean 2.03 Carat Bluish Green Emerald Cut Colombian Emerald Gem - May
Located in Jupiter, FL
Stone: Emerald Weight: 2.03-carats Shape: Emerald Cut Clarity: Transparent Luster: Very Good Color: Medium Bluish Green Measurements: 7.90mm x 7.16mm x 5.35mm Geographic Origin: Colo...
Category

2010s Colombian Modern USA - Loose Gemstones

Materials

Emerald

6.74 Ct Blue Sapphire Octagon Cut Loose Gemstone
Located in Fort Lee, NJ
A highly precious September birthstone with a delighting blue color. They are believed to bring good luck & fortune to life. Explore vibrant collection of Emerald, Ruby & Sapphires ...
Category

2010s Sri Lankan USA - Loose Gemstones

Materials

Blue Sapphire

7.98 Carat Vivid Bluish Green Colombian Emerald - Rounded Cushion Cut
Located in Jupiter, FL
Stone: Emerald Weight: 7.98-carats Shape: Cushion Cut Clarity: Transparent Luster: Very Good Color: Bluish Green Measurements: 12mm x 11.60mm x 8.7mm Geographic Origin: Colombia Trea...
Category

2010s Colombian Modern USA - Loose Gemstones

Materials

Emerald

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

Early 20th Century Malagasy Contemporary USA - Loose Gemstones

Materials

Citrine, Quartz

3.01 Carat Bluish Green Colombian Emerald - Cushion Cut Genuine Gem May
Located in Jupiter, FL
Stone: Emerald Weight: 3.01-carats Shape: Cushion Cut Clarity: Transparent Luster: Excellent-Very Good Color: Bluish Medium Green Measurements: 8.99mm x 9.11mm x 6.28mm Geographic Or...
Category

2010s Colombian Modern USA - Loose Gemstones

Materials

Emerald

GIA Certified 2.78ct Round Natural Brilliant Cut Loose Diamond I, SI2
Located in Carmel By The Sea, CA
This GIA-certified 2.78-carat round brilliant cut diamond is a remarkable statement piece, offering impressive size and brilliance. The diamond has been professionally graded by GIA,...
Category

2010s USA - Loose Gemstones

Materials

Diamond

2.00ct Fancy Light Yellow-Green Marquise Cut Diamond - Loose
By Rare Colors
Located in New York, NY
This rare 2.00 carat fancy light yellow-green marquise cut diamond offers a beautiful blend of softness and vibrancy. With its elongated silhouette and graceful curves, the marquise ...
Category

2010s USA - Loose Gemstones

Materials

Diamond

3.74 Ct Blue Sapphire Oval Loose Gemstone
Located in Fort Lee, NJ
A highly precious September birthstone with a delighting blue color. They are believed to bring good luck & fortune to life. Explore vibrant collection of Emerald, Ruby & Sapphires ...
Category

2010s Sri Lankan USA - Loose Gemstones

Materials

Blue Sapphire

1.32 Carat Loose Natural Emerald Gemstone GIA Emerald Cut Solitaire
Located in McLeansville, NC
Gem: Natural Emerald Carat: 1.32ct Measurements: 7.68 x 5.64 x 4.89 mm Cut: Step Cut Octagonal (Emerald Cut) Color: Green GIA: 6234017370
Category

21st Century and Contemporary South American USA - Loose Gemstones

Materials

Emerald

3.22 Ct Blue Sapphire Oval Loose Gemstone
Located in Fort Lee, NJ
A highly precious September birthstone with a delighting blue color. They are believed to bring good luck & fortune to life. Explore vibrant collection of Emerald, Ruby & Sapphires ...
Category

2010s Sri Lankan USA - Loose Gemstones

Materials

Blue Sapphire

2.39 Ct Ruby Marquise Loose Gemstone
Located in Fort Lee, NJ
An exquisite red color birthstone for July, believed to convey a status of power & wealth. Explore vibrant collection of Emerald, Ruby & Sapphires in our store available as a loose ...
Category

2010s Malagasy USA - Loose Gemstones

Materials

Ruby

4.50 Carat GIA Certified 11x8 Vivid Muzo Green Colombian Emerald May Birthstone
Located in Jupiter, FL
Stone: Emerald Weight: 4.50-carats Shape: Emerald Cut Clarity: Transparent Luster: Very Good Color: Vivid Muzo Green Measurements: 11.22mm x 8.05mm x 6.69mm Geographic Origin: Colomb...
Category

2010s Colombian Modern USA - Loose Gemstones

Materials

Emerald

GIA Certified 0.91 Carat Brazilian Paraiba Tourmaline Natural Blueish/Green
Located in Carefree, AZ
This GIA Certified Natural 0.91 Carat Bluish-Green-Pear Fantasy Cut Brazilian Paraiba Tourmaline is from the original mine Mina da Batalha in Brazil. Please see The GIA Tourmaline O...
Category

Early 2000s Brazilian Artist USA - Loose Gemstones

Materials

Tourmaline, Paraiba

GIA Certified 3.02 Carat Princess Cut Natural Diamond
Located in Coral Gables, FL
Loose 3.02 Carat Princess Cut Diamond GIA Graded (Report #10155902) As I Color and VS2 Clarity.
Category

1990s USA - Loose Gemstones

Materials

Diamond

Stunning Uruguayan Amethyst Geode from uruguay
Located in Beaverton, OR
Immerse yourself in the natural beauty and calming energy of this exquisite amethyst geode, sourced from the picturesque landscapes of Uruguay. Unlike many Brazilian amethysts, which...
Category

2010s Uruguayan USA - Loose Gemstones

Materials

Amethyst, Geode

Fancy Intense Purplish Pink Natural Diamond, Loose .24 Carat Pear, GIA Certified
By Sarosi By Timeless Gems
Located in Los Angeles, CA
This extremely rare, natural pink diamond weighs .24 carat and is accompanied by a Gemological Institute of America (GIA) Colored Diamond Grading Report stating its color as "Natural, Fancy Intense Purplish Pink...
Category

21st Century and Contemporary USA - Loose Gemstones

Materials

Diamond, Pink Diamond

3.11 Carat "Pigeon's Blood" Burmese Ruby Oval, Loose Gemstone, GIA Certified
By Sarosi By Timeless Gems
Located in Los Angeles, CA
One look at this spectacular 3.11 carat Burmese "Pigeon's Blood" beauty and it's easy to see why rubies are known as "The King of Gemstones." Certified "vivid red" by the Gemological Institute of America, this gem has excellent clarity and a perfect balance of color and brilliance! This ruby is extremely well cut and well-proportioned, measuring 8.49 x 7.06 x 5.88 millimeters - the ideal shape for a variety of designs! It is accompanied by GIA Origin Report #1236568776 certifying its origin as Burma (currently known as Myanmar), which has long been revered as the premier source for fine rubies. This is an exemplary Burmese ruby - worthy of being passed down for generations! Custom designs available. Please send us a message to schedule a complimentary design session. Note: Internal characteristics and natural inclusions may appear magnified by photography. We have a large selection of unmounted rubies...
Category

21st Century and Contemporary Burmese Artisan USA - Loose Gemstones

Materials

Ruby

Bluish Green 1.91 Carat Emerald Cut Colombian Emerald Gem - May Birthstone
Located in Jupiter, FL
Stone: Emerald Weight: 1.91-carats Shape: Emerald Cut Clarity: Transparent Luster: Very Good Color: Bluish Green Measurements: 7.95mm x 6.36mm x 5.22mm Geographic Origin: Colombia Tr...
Category

2010s Colombian Modern USA - Loose Gemstones

Materials

Emerald

3.61 Carat 10x9 Vivacious Green Loose Colombian Emerald - Emerald Cut May
Located in Jupiter, FL
Stone: Emerald Weight: 3.61-carats Shape: Emerald Cut Clarity: Transparent Luster: Excellent Color: Vivid Green Measurements: 10.35mm x 8.73mm x 5.63mm Geographic Origin: Colombia Tr...
Category

2010s Colombian Modern USA - Loose Gemstones

Materials

Emerald

0.90 Carat Princess Shape Natural Loose Diamond
Located in Great Neck Plaza, NY
0.90 Carat Princess Shape Natural Loose Diamond Average Color H, Clarity I2 Measurements: 5.3 x 4.8 x 3.5 mm
Category

2010s American USA - Loose Gemstones

Materials

Diamond, 14k Gold, Yellow Gold

2.11 Carat Pink Sapphire Oval, Unset Loose Gemstone, GIA Certified
Located in Los Angeles, CA
This sapphire is an eye catching, vibrant purplish pink color measuring 9.09 x 6.70 x 3.39 millimeters and weighing 2.11 carats. This oval gem would make a lovely 3-stone or engageme...
Category

21st Century and Contemporary Unknown Artisan USA - Loose Gemstones

Materials

Sapphire, Pink Sapphire

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