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Unheated Padparadscha Sapphire Ring Gem No Heat Ceylon 4 Carat Loose Gemstone
By Merkaba
Located in Beverly Hills, CA
Highly prized, world-class, unheated 4 carat "Ceylon" (Sri Lanka) Padparadscha Sapphire oval
Category

21st Century and Contemporary Sri Lankan Contemporary Loose Gemstones

Materials

Padparadscha Sapphire , Sapphire

Unheated Ruby Ring Gem 4 Carat Oval Unmounted Loose Gemstone “Pigeon Blood”
By Merkaba
Located in Beverly Hills, CA
loose gemstone collection.
Category

21st Century and Contemporary Mozambican Contemporary Loose Gemstones

Materials

Ruby

Violet Spinel, Faceted Gem, 4, 63 Ct., Loose Gemstone
Located in Kirschweiler, DE
We are delighted to be able to offer for sale, this 4,63 ct. Violet Spinel from our exclusive collection. This beautiful gem has a soft purplish violet color and a great fire. Cuttin...
Category

21st Century and Contemporary German Contemporary Loose Gemstones

Materials

Spinel

Imperial Topaz Earrings Loose Gemstones 3.36 Carat Unmounted Cushions
By Merkaba
Located in Beverly Hills, CA
Bright 3.36 carat Brazilian Imperial Topaz pair of cushion loose gemstones, offered unmounted to
Category

21st Century and Contemporary Brazilian Contemporary Loose Gemstones

Materials

Topaz, Imperial Topaz

Deep Blue Sapphire, Certified Gem, 4, 27 Ct., Loose Gemstone
Located in Kirschweiler, DE
enable an very high light return from every angle! It is certified by the German Foundation for Gemstone
Category

21st Century and Contemporary German Contemporary Loose Gemstones

Materials

Blue Sapphire

Exceptional Aquamarine Cut Gemstone 1.30 Carats Aquamarine Loose Gems Jewelry
Located in Bangkok, TH
Aquamarine Cut Gemstone WEIGHT: 1.30 Carats DIMENSIONS: 8.1 x 5.9 x 4 mm CLARITY: Loupe Clean SHAPE: Octagon
Category

21st Century and Contemporary Pakistani Modern Loose Gemstones

Materials

Aquamarine

Intense Green Tsavorite Garnet, Faceted Gem, 4, 61 ct., loose Gemstone
Located in Kirschweiler, DE
We are delighted to be able to offer for sale, this 4,61 ct. Tsavorite Garnet from our exclusive collection. This beautiful rare gem has a rich green green color and a great fire. Cu...
Category

21st Century and Contemporary German Contemporary Loose Gemstones

Materials

Garnet, Tsavorite

2.00 Carat Natural Loose Cushion Shape Colourless African Tourmaline Gemstone
Located in Peshawar, PK
Loose Tourmaline Weight: 2.00 Carats Dimension: 7.9 x 7 x 5.2 Mm Colour: Colourless Origin
Category

21st Century and Contemporary Central African Arts and Crafts Loose Gems...

Materials

Tourmaline

1.63 Carat Natural Blue Sapphire Loose Gemstone Sri Lanka
By Emeralds Maravellous
Located in US
1.63 Carat Natural Blue Sapphire Loose Gemstone Sri Lanka Main Stone: Natural sapphire Gemstone
Category

21st Century and Contemporary Sri Lankan Art Deco Loose Gemstones

Materials

Blue Sapphire

2.25 Carats Loose Red Rhodolite Garnet Gemstone From Madagascar Mine
Located in Peshawar, PK
Faceted Rhodolite Garnet Weight: 2.25 Carats Dimension: 7.6x7.4x5.1 Mm Origin: Madagascar Africa
Category

21st Century and Contemporary Malagasy Arts and Crafts Loose Gemstones

Materials

Garnet, Rhodolite

Lovely Natural Spinel Loose Gemstone 1.15 Carats Spinel Ring Spinel Jewelry
Located in Bangkok, TH
Natural Spinel Loose Gemstone WEIGHT: 1.15 Carats DIMENSIONS: 6.8 x 5.5 x 4 mm CLARITY: VSI SHAPE: Cushion
Category

21st Century and Contemporary Burmese Modern Loose Gemstones

Materials

Spinel

Brilliant Grey Spinel Loose Gemstone 1.40 Carats Spinel Jewellery Spinel Ring
Located in Bangkok, TH
: Brilliant Grey Spinel Loose Gemstone WEIGHT: 1.40 Carats DIMENSIONS: 7 x 6.1 x 4 mm CLARITY: Eye clean SHAPE
Category

21st Century and Contemporary Burmese Modern Loose Gemstones

Materials

Spinel

Mandarin Garnet Earrings Gemstone Pair 5.80 Carat Unset Oval Loose Gems
By Emeralds Maravellous
Located in US
Natural Untreated pair of Mandarin Garnet oval gemstones, weighing a total of 5.80 carats, offered
Category

21st Century and Contemporary Nigerien Modern Loose Gemstones

Materials

Garnet, Mandarin Garnet

5.24 Carat Cushion Spessartite Mandarin Garnet Loose Unset Ring Pendant Gemstone
By Sarosi By Timeless Gems
Located in Los Angeles, CA
beautifully bright gemstone! Fine spessartite garnets over 4 carats are also exceedingly rare. We specialize
Category

21st Century and Contemporary Artisan Loose Gemstones

Materials

Garnet, Mandarin Garnet

Purple Pink Sapphire, No Heat, Certified Gem, 4, 46 Ct., Loose Gemstone
Located in Kirschweiler, DE
Foundation for Gemstone Research (DSEF). The stone has none treatment and no indication of heating! gem
Category

21st Century and Contemporary German Contemporary Loose Gemstones

Materials

Pink Sapphire, Purple Sapphire

7.90 Carat Natural Yellow Canary Tourmaline Loose Gemstone For Jewelry Making
Located in Peshawar, PK
Faceted Tourmaline Weight: 7.90 Carats Dimension: 13.6x12.2x7.8 Mm Origin: Madagascar Africa
Category

21st Century and Contemporary Malagasy Arts and Crafts Loose Gemstones

Materials

Tourmaline

4 Carat Tanzanite 9mm Round Faceted Cut - Single Loose Stone
Located in Endwell, NY
Add this stunning round faceted cut tanzanite to your gemstone and jewelry collection, or make it
Category

20th Century Loose Gemstones

Materials

Tanzanite

Huge 25.70 Carats Loose Sky Blue Topaz Gemstone For Necklace Jewelry
Located in Peshawar, PK
Faceted Blue Topaz Weight: 25.70 Carats Dimensions: 17.1x17.1x11.8 Mm Origin: Brazil Color: Blue
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Topaz, Blue Topaz, Imperial Topaz

2.40 Carat Gorgeous Fire Loose Sphene Gemstone From Pakistan Mine Oval Shape
Located in Peshawar, PK
immune system and aiding in cell regeneration. 4. **Emotional Support**: Sphene is thought to help
Category

21st Century and Contemporary Pakistani Arts and Crafts Loose Gemstones

Materials

Alexandrite, Hematite

92.86 Carats Top Quality Rubellite Tourmaline Cabochon 4 Pieces Natural Gemstone
Located in Jaipur, RJ
Gemstone - Rubellite Tourmaline Weight - 92.86 Ct Size - 10x12.5 To 18x23 MM Piece - 4 Shape
Category

21st Century and Contemporary Unknown Loose Gemstones

Materials

Rubelite, Tourmaline

28.71 carats aquamarine petal carving 4 pieces set for jewelry natural gemstone
Located in Jaipur, RJ
28.71 carats aquamarine petal carving 4 pieces set for jewelry natural gemstone Gemstone
Category

21st Century and Contemporary Unknown Art Deco Loose Gemstones

Materials

Aquamarine

Zambian Emerald Hexagon Carved Fancy Cabochon Loose Gemstone for Jewelry
Located in Jaipur, RJ
Weight: 12.49 Carats Size: 13x14 MM Pieces: 4 Shape: Carved Fancy Hexagon Cabochon
Category

21st Century and Contemporary Zambian Art Deco Loose Gemstones

Materials

Emerald

Zambian Emerald Hexagon Carved Fancy Cabochon Loose Gemstone for Jewelry
Located in Jaipur, RJ
Weight: 77.20 Carats Size: 20x22 To 23x18 MM Pieces: 4 Shape: Carved Fancy Hexagon Cabochon
Category

21st Century and Contemporary Zambian Art Deco Loose Gemstones

Materials

Emerald

4 Carat Natural Bi Color Tourmaline Loose stone in Green and White
Located in London, GB
4 Carat Natural Bi Color Tourmaline Loose stone in Green and White GRS/GCS/GIA appointed lab
Category

2010s Loose Gemstones

Materials

Tourmaline

Pink Tourmaline Loose Stone Lot Calibrated Size Natural Gemstones from Africa
Located in Bangkok, TH
Gemstone Type Pink Tourmaline Lot Calibrated Size Weight 4.12 carats Dimensions 4 mm Clarity Eye
Category

21st Century and Contemporary African Modern Loose Gemstones

Materials

Tourmaline

Champagne Peach Sapphire 4.50 Ct Emerald Cut Natural Unheated, Loose Gemstone
Located in South Melbourne, AU
An impressive large 4 carat champagne peach sapphire with a tempting pinkish yellow complexion
Category

21st Century and Contemporary Sri Lankan Modern Loose Gemstones

Materials

Sapphire

Violet Colour Shift Sapphire 4.12 Ct Oval Natural Heated, Loose Gemstone
Located in South Melbourne, AU
Tantalising large over 4 carat deep violet sapphire displaying a chameleon effect of blue in
Category

21st Century and Contemporary Malagasy Modern Loose Gemstones

Materials

Sapphire

Vivid Yellow Sapphire 4.09 Ct Emerald Cut Natural Unheated, Loose Gemstone
Located in South Melbourne, AU
yellow sapphire, shaped by our cutters using traditional methods and preserving a weight of over 4 carat
Category

21st Century and Contemporary Sri Lankan Modern Loose Gemstones

Materials

Sapphire

2.75 Carat Natural Aquamarine Loose Stone
Located in London, GB
2.75 Carat Natural Aquamarine Loose Stone GRS/GCS/GIA appointed lab certificate can be arranged
Category

2010s Loose Gemstones

Materials

Aquamarine

2.59 Carat Natural Aquamarine Loose Stone
Located in London, GB
2.59 Carat Natural Aquamarine Loose Stone Appointed lab certificate can be arranged upon request
Category

2010s Loose Gemstones

Materials

Aquamarine

4.75 Carat Natural Aquamarine Loose Stone
Located in London, GB
4.75 Carat Natural Aquamarine Loose Stone Appointed lab certificate can be arranged upon request
Category

2010s Loose Gemstones

Materials

Aquamarine

1.90 Cts Natural Soft Baby Pink Tourmaline Loose Gemstone From Afghanistan Mine
Located in Peshawar, PK
Faceted Tourmaline Weight: 1.90 Carats Dimension: 7.8x6.9x5.2 Mm Origin: Kunar Afghanistan Shape
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

Incredible Hot Pink Garnet Gemstone 1.40 Carats Garnet Gemstone From Malawi
Located in Bangkok, TH
: GEMSTONE NAME: Incredible Hot Pink Garnet Gemstone WEIGHT: 1.40 carats DIMENSIONS: 6.5 x 6.2 x 4 mm ORIGIN
Category

21st Century and Contemporary Malawian Modern Loose Gemstones

Materials

Garnet

Spinel Palette 7.20 Carats Round 5mm Loose Gems Set
Located in US
Spinel Palette 7.20 Carats Round Loose Gems Set Multi-color palette natural spinel set( 15 stone
Category

21st Century and Contemporary Unknown Contemporary Loose Gemstones

Materials

Spinel

Rare 2.25 Carat Natural Loose Sphalerite Cushion Shape Gem
Located in Peshawar, PK
Loose Sphalerite Weight: 2.25 Carats Dimension: 7.7 x 6.8 x 4.8 Mm Color: Redish Orange Origin
Category

21st Century and Contemporary Central African Arts and Crafts Loose Gems...

Materials

Other

Rare 2.25 Carat Natural Loose Sphalerite Cushion Shape Gem
Rare 2.25 Carat Natural Loose Sphalerite Cushion Shape Gem
Free Shipping
W 0.27 in D 0.19 in L 0.31 in
3.50 Carats Natural Loose Spessartine Garnet Ring Gem January Birthstone
Located in Peshawar, PK
Faceted Spessartine Weight: 3.50 Carats Dimension: 9x7.8x5.2 Mm Family: Garnet Color: Orange Red
Category

21st Century and Contemporary Malagasy Arts and Crafts Loose Gemstones

Materials

Garnet, Mandarin Garnet

2.05 Carat Natural Loose Emerald Shape Indicolite Tourmaline Gem For Ring
Located in Peshawar, PK
Loose Indicolite Tourmaline Weight: 2.05 Carats Dimension: 10.3 x 5.7 x 4 Mm Origin: Afghanistan
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline, Indicolite

12.60 Carats Loose Bolivian Ametrine Long Baguette Shape For Jewellery Making
Located in Peshawar, PK
gemstone, the 4 Cs (color, clarity, cut, and carat weight) play a significant role in determining its value
Category

21st Century and Contemporary Bolivian Arts and Crafts Loose Gemstones

Materials

Amethyst, Citrine

Huge 73.40 Carats Natural Loose Clear Quartz Gem For Necklace Jewelry
Located in Peshawar, PK
Loose Quartz Weight: 73.40 Carats Dimension: 26x23x20 Mm Origin: Brazil Color: Light Gold Shape
Category

21st Century and Contemporary Brazilian Arts and Crafts Loose Gemstones

Materials

Quartz

2.04 Carat Natural Santa Maria Color Aquamarine Loose Stone
Located in London, GB
2.04 Carat Natural Santa Maria Color Aquamarine Loose Stone Appointed lab certificate can be
Category

2010s Loose Gemstones

Materials

Aquamarine

3.24 Carat Natural Santa Maria Color Aquamarine Loose Stone
Located in London, GB
3.24 Carat Natural Santa Maria Color Aquamarine Loose Stone Appointed lab certificate can be
Category

2010s Loose Gemstones

Materials

Aquamarine

3.78 Carat Natural Santa Maria Color Aquamarine Loose Stone
Located in London, GB
3.78 Carat Natural Santa Maria Color Aquamarine Loose Stone Appointed lab certificate can be
Category

2010s Loose Gemstones

Materials

Aquamarine

6.63 Carat Natural Santa Maria Color Aquamarine Loose Stone
Located in London, GB
6.63 Carat Natural Santa Maria Color Aquamarine Loose Stone Appointed lab certificate can be
Category

2010s Loose Gemstones

Materials

Aquamarine

3.27 Carat Natural Santa Maria Color Aquamarine Loose Stone
Located in London, GB
3.27 Carat Natural Santa Maria Color Aquamarine Loose Stone Appointed lab certificate can be
Category

2010s Loose Gemstones

Materials

Aquamarine

7.79 Carat Natural Santa Maria Color Aquamarine Loose Stone
Located in London, GB
7.79 Carat Natural Santa Maria Color Aquamarine Loose Stone Appointed lab certificate can be
Category

2010s Loose Gemstones

Materials

Aquamarine

1.99 Carat Natural Santa Maria Color Aquamarine Loose Stone
Located in London, GB
1.99 Carat Natural Santa Maria Color Aquamarine Loose Stone Appointed lab certificate can be
Category

2010s Loose Gemstones

Materials

Aquamarine

1.85 Carat Natural Santa Maria Color Aquamarine Loose Stone
Located in London, GB
1.85 Carat Natural Santa Maria Color Aquamarine Loose Stone Appointed lab certificate can be
Category

2010s Loose Gemstones

Materials

Aquamarine

3.20 Carats Faceted Natural Rubellite Tourmaline Gemstone Emerald Shape
Located in Peshawar, PK
Loose Rubellite Weight: 3.20 Carats Dimension: 10.1x6.8x5.6 Mm Origin: Afghanistan Shape
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Rubelite, Tourmaline

1.45 Carat Natural Loose Mint Green Tourmaline Emerald Shape Gem For Ring
Located in Peshawar, PK
Loose Mint Green Tourmaline Weight: 1.45 Carats Dimension: 7.8 x 5.2 x 4 Mm Colour: Mint Green
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

2.35 Carat Natural Loose Mint Green Tourmaline Emerald Shape Gem For Ring
Located in Peshawar, PK
Loose Mint Green Tourmaline Weight: 2.35 Carats Dimension: 10.6 x 5.6 x 4 Mm Colour : Mint Green
Category

21st Century and Contemporary Afghan Arts and Crafts Loose Gemstones

Materials

Tourmaline

1.76 Carat Natural Super Santa Maria Color Aquamarine Loose Stone
Located in London, GB
1.76 Carat Natural Super Santa Maria Color Aquamarine Loose Stone Appointed lab certificate can be
Category

2010s Loose Gemstones

Materials

Aquamarine

GRS Certified 3.03 Carat Natural Unheated Mozambique Ruby Loose Stone
Located in London, GB
GRS Certified 3.03 Carat Natural Unheated Mozambique Ruby Loose Stone This Item is ideal for your
Category

2010s Mozambican Loose Gemstones

Materials

Ruby

3.10 Carats Faceted Orange Hessonite Garnet Round Shape Ring Gemstone
Located in Peshawar, PK
Faceted Hessonite Garnet Weight: 3.10 Carats Dimension: 9.3x9.3x5.1 Mm Origin: Madagascar Africa
Category

21st Century and Contemporary Malagasy Arts and Crafts Loose Gemstones

Materials

Garnet, Hessonite

3.25 Carats Faceted Dark Green Tourmaline Oval Shape Ring Gemstone
Located in Peshawar, PK
Faceted Tourmaline Weight: 3.25 Carats Dimension: 10.3x7.5x5.6 Mm Origin: Africa Shape: Oval
Category

21st Century and Contemporary Malagasy Arts and Crafts Loose Gemstones

Materials

Tourmaline, Chrome Tourmaline

GIA Certified No Heat Oval Natural Ruby Weighing 1.18 Carats Gemstone
By OGI Ltd
Located in New York, NY
of nature. Weighing 1.18 carats, this exceptional gemstone is the perfect addition to your collection
Category

20th Century American Contemporary Loose Gemstones

Materials

Ruby

3.09 Carat Royal Blue Natural Sapphire Loose Stone Octagon(Customization Option)
Located in London, GB
3.09 Carat heated royal blue natural sapphire loose stone octagon (customization option available
Category

2010s Loose Gemstones

Materials

Blue Sapphire

Gubelin Certified 2.01 Carat Unheated Natural Mogok Burma Ruby Loose Stone
Located in London, GB
Gubelin Certified 2.01 Carat Unheated Natural Mogok Burma Ruby Loose Stone Come with a Gubelin
Category

2010s Mozambican Loose Gemstones

Materials

Ruby

3.06 Carat Royal Blue Natural Sapphire Loose Stone Cushion(Customization Option)
Located in London, GB
3.06 Carat heated royal blue natural sapphire loose stone cushion (customization option available
Category

2010s Loose Gemstones

Materials

Blue Sapphire

6 Carat Super Santa Maria Colour Aquamarine Loose Stone (Customization Option)
Located in London, GB
6 Carat super Santa Maria colour aquamarine loose stone(customization option available) Drenched
Category

2010s Loose Gemstones

Materials

Aquamarine

2 3/4 Carat Cushion Bluish Violet Sapphire GIA
Located in San Francisco, CA
This Cushion shape 2.74-carat Natural Bluish Violet color sapphire GIA certified has been hand
Category

21st Century and Contemporary Sri Lankan Loose Gemstones

Materials

Sapphire

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4 Carat Loose Gemstone For Sale on 1stDibs

Find the exact 4 carat loose gemstone you’re shopping for in the variety available on 1stDibs. Every item for sale was constructed with extraordinary care, often using 18k Gold, Gold and Platinum. Our collection of these items for sale includes 9 vintage editions and 302 modern creations to choose from as well. If you’re looking for a 4 carat loose gemstone from a specific time period, our collection is diverse and broad-ranging, and you’ll find at least one that dates back to the 18th Century while another version may have been produced as recently as the 21st Century. A 4 carat loose gemstone from Merkaba, Sarosi By Timeless Gems and Tamir — each of whom created a beautiful version of this treasured accessory — is worth considering. A 4 carat loose gemstone can make for a versatile accessory, but a selection from our variety of 86 Tourmaline versions can add an especially stylish touch. Today, if you’re looking for an oval cut version of this piece and are unable to find the perfect match, our selection also includes cushion cut and emerald cut alternatives. If you’re browsing our inventory for a 4 carat loose gemstone, you’ll find that many are available today for women, but there are still pieces to choose from for unisex and men.

How Much is a 4 Carat Loose Gemstone?

Prices for a 4 carat loose gemstone can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $65 and can go as high as $325,000, while this accessory, on average, fetches $5,940.

Finding the Right loose-gemstones for You

Are you shopping for diamonds and other loose gemstones to create your own custom jewelry? 

Why might you purchase a diamond or gemstone “loose” — that is, on its own, not mounted in a piece of jewelry? Perhaps you’re a connoisseur looking to acquire a unique investment. The scarcity of high-quality colored diamonds, for instance, especially pink diamonds, means that their value increases over time; the same is true of rare Kashmir sapphires and Burmese rubies. Far rarer than diamonds, Paraiba tourmaline, discovered only in the 1980s, is treasured as much for its extraordinary color as its scarcity, both of which contribute to its high value.

A more common scenario would be that you’re hoping to create a very special piece of custom jewelry, such as an engagement ring or a milestone-birthday present, and want to personally select the most beautiful, unusual, or ultra-rare stone you can find and afford. Doing so adds to the romance and substance of the gift and can be a part of the story told as the jewel is passed from generation to generation.

If this sounds like you, read on for tips on becoming one of the world’s savviest gem hunters.

Educate yourself: When buying any piece of gem-set fine jewelry, you should familiarize yourself with the factors that determine a stone’s price. This will enable you to streamline your search for the perfect gem and have intelligent, productive conversations with sellers.

There is a wealth of information online, such as our diamond-buying guide and this overview of colored gemstones for engagement rings. The buying guides of the Gemological Institute of America (GIA), searchable by stone type, are also a widely trusted source for consumers venturing into the world of diamonds and gems for the first time.

Vet your vendor: If you peruse 1stDibs with any regularity, you know there is no shortage of vendors who deal in top-quality loose gemstones. (Read about our vetted sellers.) Finding a trustworthy, established dealer may be as easy as getting a recommendation from friends or family. And, although it may sound obvious, it pays to Google your candidates — and consult customer reviews — before making contact.

Harakh Mehta, designer and founder of the Mumbai, India–based fine-jewelry brand Harakh, has an innate understanding of proper client relations, especially when the customer is in unfamiliar territory. “Start chatting with the dealer, get to know them better," he says. "It’s very important to establish a comfort level. We never push a sale, as we want it to be a carefully considered purchase. So, if the client is not in a rush, we do it over a few virtual meetings or phone calls.”

Request documentation: The best dealers go to great lengths to furnish clients with documents verifying the quality rating, natural origin and provenance of a stone — showing, for example, that loose emerald hails from the famous Muzo mine in Colombia — and disclosing any treatments applied to enhance its appearance. (And who doesn't love emerald jewelry? The most valuable emeralds are the ones that have a deep bluish-green to true green color and no visible inclusions.)

If no grading report is available for a stone you are interested in, the dealer should be able to provide an authenticity document, such as an appraisal or info sheet, that has been signed by an in-house gemologist or professional appraiser. Google those names, too, for extra peace of mind.

Ask for videos and visuals: When transacting with a gem dealer online, you should always request real-time videos and photographs, since professional photos of a stone, usually on a white background, have likely been retouched for optimal presentation.

Read more about how to buy loose gemstones and find your dream gems today on 1stDibs.