Skip to main content

1 Carat Loose Gemstones

to
18
2
2
190
29
13
8
6
246
206
40
75
47
30
25
16
to
8
1
1
16
9
3
246
36
14
Sort By
Brilliant 1 pc Ideal Cut Natural Diamond w/1.22 ct - GIA Certified
Located in רמת גן, IL
Brilliant 1 pc Ideal Cut Natural Diamond w/1.22 ct - GIA Certified This brilliant 1.22 carat
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Sparking 1 pc Natural Diamond 1.00 ct Round - I - VVS1 IGI Certificate
Located in רמת גן, IL
1 sparkling natural round brilliant cut diamond in a 1-carat I VVS1 excellent cut. This diamond
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Bright 1 pc Ideal Cut Natural Diamond w/2.01 ct - GIA Certified
Located in רמת גן, IL
Bright 1 pc Ideal Cut Natural Diamond w/2.01 ct - GIA Certified This captivating 2.01 carat
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Luminous 1 pc Ideal Cut Natural Diamond w/1.02 ct - IGI Certified
Located in רמת גן, IL
to its quality and authenticity. Stone: 1 pc of Diamond Stone carat weight: 1.02 ct Shape: Cushion
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Brilliant 1 pc Ideal Cut Natural Diamond w/1.00 ct - IGI Certified
Located in רמת גן, IL
, providing enhanced protection and authenticity assurance. Stone: 1 pc of Diamond Stone carat weight: 1.00
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Luminous 1 pc Ideal Cut Natural Diamonds w/0.74 ct - IGI Certified
Located in רמת גן, IL
Luminous 1 pc Ideal Cut Natural Diamonds w/0.74 ct - IGI Certified Introducing this ideal cut
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Sparkling 1 Pc Natural Diamond with 0.51 Ct D VVS1, IGI Certificate
Located in רמת גן, IL
1 pcs Diamond - 0.51 ct - cut cornered modified rectagular - D (colourless) - VVS1 IGI (IL) 1
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Lustrous 1 pc Ideal Cut Natural Diamond w/1.00 ct - IGI Certified
Located in רמת גן, IL
Lustrous 1 pc Ideal Cut Natural Diamond w/1.00 ct - IGI Certified Behold the pinnacle of diamond
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pc Natural Diamond, 0.50 Ct, Heart, I, VVS2, GIA Certificate
Located in רמת גן, IL
Natural heart diamond in a 0.50 carat I VVS2 graded by GIA Laboratory with beautiful cut and shine
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pc Natural Diamond, 0.54 Ct, Heart, J, VVS1, GIA Certificate
Located in רמת גן, IL
A natural diamond in 0.54 carat J VVS1 Heart Shaped with maximum shine and sparkles, sealed in a
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Exquisite 1 pc Ideal Cut Natural Diamond w/0.51 ct - GIA Certified
Located in רמת גן, IL
that its quality and authenticity are accurately assessed. Stone: 1 pc of Diamond Stone carat weight
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Exquisite 1 pc Ideal Cut Natural Diamond w/0.51 ct - GIA Certified
Located in רמת גן, IL
that its quality and authenticity are accurately assessed. Stone: 1 pc of Diamond Stone carat weight
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 pc Natural Diamond - 0.43 ct - Heart - G - VS2- IGI Certificate
Located in רמת גן, IL
Natural heart diamond with a 0.43 carat and G VS2 graded by IGI Laboratory with a beautiful cut and
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pc Natural Diamond, 0.70 Ct, Heart, G, VS1, IGI Certificate
Located in רמת גן, IL
Natural heart brilliant diamond in a 0.70 carat G VS1 graded by IGI Laboratory with beautiful cut
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 pc Natural Diamond - 0.50 ct - Princess - H - SI2- IGI Certificate
Located in רמת גן, IL
ideal and brilliant Princess Cut diamonds in a 0.50ct total HSI2 3595# IGI 375926131
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 pc Natural Diamonds - 0.70 ct - Radiant - D colorless -VS1- GIA Certificate
Located in רמת גן, IL
Natural diamond in a 0.70 carat D VS2 Ideal cut Radiant with GIA Certificate and laser inscription
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pc Natural Diamonds, 1.40 Ct, Round, Brilliant, F, VS1, GIA Certification
Located in רמת גן, IL
Natural diamond in a 1.40 carat F VS1 Ideal cut Round with GIA Certificate and laser inscription
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 pc Natural Diamond - 1.01 ct - Radiant - D colorless - IF flawless - IGI
Located in רמת גן, IL
1.01 carat natural diamond D IF Ideal cut RADIANT with IGI certificate sealed in a security Blister
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pc Natural Diamond, 0.50 Ct, Round, D Colourless , VVS1, IGI Certificate
Located in רמת גן, IL
Natural diamond in a 0.50 carat D VVS1 Ideal cut Round with IGI Certificate sealed in a security
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pc Natural Diamond, 0.71 Ct, Emerald, D Colourless , VS1, IGI Certificate
Located in רמת גן, IL
Natural diamond in a 0.71 carat D VS1 Ideal cut Emerald with IGI Certificate sealed in a security
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pc Natural Diamond, 0.70 Ct, Emerald, D Colourless , SI1, IGI Certificate
Located in רמת גן, IL
Amazing Emerald cut with a 0.70 carat D SI1 Ideal cut Emerald with IGI Certificate sealed in a
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pcs Natural Diamonds, 0.54 Ct, Oval, D Colourless , If Flawless , IGI
Located in רמת גן, IL
Natural diamond in a 0.54 carat D IF Ideal cut Oval with IGI Certificate sealed in a security
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pcs Natural Diamond, 0.35 Ct, Round, D Colourless , VS2, GIA Certificate
Located in רמת גן, IL
Natural Round Brilliant diamond in a 0.35 carat D VS2 with Beautiful cut and shine. This diamond
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pcs Natural Diamond, 0.50 Ct, Round, D Colourless , VS2, GIA Certificate
Located in רמת גן, IL
Natural and extremely brilliant diamond with a 0.50 carat D VS2 Ideal cut Round with the whitest
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Sparkling 1 pc Natural Diamond 0.93 ct Round G VVS1 GIA Certificate
Located in רמת גן, IL
Sparkling natural cut round brilliant diamond in a 0.93 carat G VVS1 excellent ideal cut. This
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pcs Natural Diamond, 0.50 Ct, Princess, D Colourless , IF Flawless , IGI
Located in רמת גן, IL
Natural princess cut diamond in a 0.50 carat D IF with Beautiful cut and shine. This diamond comes
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 pcs Natural Diamond - 1.00 ct - Emerald - D (colourless) - VVS1- GIA cert
Located in רמת גן, IL
Natural emerald cut diamond in a 1.00 carat D VVS1 graded by GIA Laboratory with beautiful cut and
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 pcs Natural Diamond - 0.50 ct - Emerald - D colorless - VVS2- GIA Cert
Located in רמת גן, IL
Natural emerald cut diamond in a 0.50 carat D VVS2 graded by GIA Laboratory with a beautiful cut
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pc Natural Diamond, 0.93 Ct, Round, D Colourless , VS, GIA Certificate
Located in רמת גן, IL
Natural round brilliant diamond in a 0.93 carat E VS1 graded by GIA Laboratory with Excellent cut
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 pc Natural Diamond - 0.71 ct - Round - F - IF (flawless)- IGI Certificate
Located in רמת גן, IL
Natural Round Brilliant diamond in a 0.71 carat F IF with excellent cut and extremely shine. This
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 pc Natural Diamond - 0.72 ct - Round - I - IF (flawless)- GIA Certificate
Located in רמת גן, IL
Natural round diamond with a 0.72 carat and I IF grading by GIA lab with Excellent cut grade and
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pcs Natural Diamond, 0.72 Ct, Round, I, If Flawless , GIA Certificate
Located in רמת גן, IL
Natural round diamond with a 0.72 carat and I IF grading by GIA lab with Excellent cut grade and
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pcs Natural Diamond, 1.00 Ct, Round, D, IF Flawless , IGI Certificate
Located in רמת גן, IL
Natural Round Brilliant diamond in a 1.00 carat D IF with excellent cut and extremely shine. This
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pc Natural Diamond, 1.01 Ct, Cushion, H, IF Flawless , IGI Certificate
Located in רמת גן, IL
Ideal and natural cushion diamond in a 1.01 carat H IF graded by IGI Laboratory with Excellent cut
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pc Natural Diamond, 0.50 Ct, Round, D Colourless , VS2, IGI Certificate
Located in רמת גן, IL
Ideal and natural Round Brilliant diamond in a 0.50 carat D VS2 with Excellent cut and Extremely
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pc Natural Diamond - 0.54 Ct - Cushion - D Colorless - If Flawless , IGGI
Located in רמת גן, IL
Natural cushion diamond in a 0.54 carat D IF graded by IGI Laboratory with an Excellent cut grade
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pcs Natural Diamond, 0.41 Ct, Round, D Colourless , SI2, IGI Certificate
Located in רמת גן, IL
Natural round brilliant diamond in a 0.41 carat D SI2 graded by IGI Laboratory with beautiful cut
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pcs Natural Diamond, 0.70 Ct, Round, D, If Flawless , IGI Certificate
Located in רמת גן, IL
Natural Round Brilliant diamond in a 0.70 carat D IF with excellent ideal cut extremely shine
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pcs Natural Diamond, 0.51 Ct, Round, D Colourless , IF Flawless , IGI
Located in רמת גן, IL
Ideal and natural diamond in a 0.51 carat D IF graded IGI Laboratory with 3EX cut and extremely
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 pc Natural Diamond - 0.90 ct - Asscher - D (colourless) - IF (flawless)- IGI
Located in רמת גן, IL
Natural asscher cut diamond in a 0.90 carat D IF graded by IGI Laboratory with beautiful cut and
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pc Natural Diamond, 0.54 Ct, Asscher, D Colourless , IF Flawless , IGI
Located in רמת גן, IL
Natural asscher diamond in a 0.54 carat D IF graded by IGI Laboratory with the highest color
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 pcs Natural Diamond, 0.54 ct, Asscher - D colorless , IF flawless , IGI
Located in רמת גן, IL
Natural asscher diamond in a 0.54 carat D IF graded by IGI Laboratory with the highest color
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Sparkling 1 pc Natural Diamond with 1.00 ct Round D IF IGI Certificate
Located in רמת גן, IL
1 Sparkling natural cut Round Brilliant diamond in a 1 carat D IF Very Good cut. This diamond comes
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Sparkling 1 pc Natural Diamond with 0.70 ct Emerald H IF IGI Certificate
Located in רמת גן, IL
1 Sparkling natural Emerald cut diamond in a 0.7 carat H IF Excellent cut. This diamond comes with
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Sparkling 1 Pc Natural Diamond with 0.45 Ct Emerald J VS2 GIA Certificate
Located in רמת גן, IL
1 Sparkling natural Emerald cut diamond in a 0.45 carat J VS2 Excellent cut. This diamond comes
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Dazzling 1 pc Natural Diamond with 0.71 ct Emerald F VS1 GIA Certificate
Located in רמת גן, IL
1 Sparkling natural Emerald cut diamond in a 0.71 carat F VS1 Excellent cut. This diamond comes
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Stunning 1 pc Natural Diamonds 0.52 ct Emerald F IF (flawless) GIA Certificate
Located in רמת גן, IL
1 Sparkling natural Emerald cut diamond in a 0.52 carat F IF Excellent cut. This diamond comes with
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Dazzling 1 pc Natural Diamond with 0.47 ct Radiant D VS1 GIA Certificate
Located in רמת גן, IL
1 Sparkling natural Radiant cut diamond in a 0.47 carat D VS1 Excellent cut. This diamond comes
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Stunning 1 Pc Natural Diamond with 0.71 Ct Radiant G VVS1 GIA Certificate
Located in רמת גן, IL
1 Sparkling natural Radiant cut diamond in a 0.71 carat G VVS1 Excellent cut. This diamond comes
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Stunning 1 Pc Natural Diamond with 0.73 Ct Round E VS2 GIA Certificate
Located in רמת גן, IL
1 Sparkling natural cut Round Brilliant diamond in a 0.73 carat E VS2 Good cut. This diamond comes
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Stunning 1 Pc Natural Diamond with 2.34 Ct Round F VS1 GIA Certificate
Located in רמת גן, IL
1 Sparkling natural Round Brilliant cut diamond in a 2.34 carat F VS1 Excellent cut. This diamond
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Sparkling 1 Pc Natural Diamond with 1.02 Ct Cushion D VS1 GIA Certificate
Located in רמת גן, IL
1 Sparkling natural cut cushion modified diamond in a 1.02 carat D VS1 with beutiful cut. This
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Dazzling 1 pc Natural Diamond with 0.73 ct Round E VS1 GIA Certificate
Located in רמת גן, IL
1 Sparkling natural cut Round Brilliant diamond in a 0.73 carat E VS1 Very Good cut. This diamond
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Dazzling 1 pc Natural Diamond 1.01 ct Round H IF (flawless) GIA Cert.
Located in רמת גן, IL
1 Stunning natural cut round brilliant diamond in a 1.01 carat H IF excellent cut. This diamond
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Stunning 1 pcs Diamond 1.01 ct Cushion D VS1, Natural Diamonds IGI Certificate
Located in רמת גן, IL
1 Luxurious natural cushion modified cut diamond in a 1.01 carat D VS1 gorgeous diamond with a very
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Dazzling 1 Pc Cushion Natural Diamond with 0.72 Ct D SI2 GIA Certificate
Located in רמת גן, IL
1 pcs Diamond - 0.72 ct - Cushion - D (colourless) - SI2 GIA Natural cushion modified brilliant
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Dazzling 1 pc Round Natural Diamond with 0.50 ct D IF - IGI Certificate
Located in רמת גן, IL
1 pcs Diamond - 0.50 ct - Round - D (colourless) - IF (flawless) IGI Gorgeous natural cut round
Category

2010s Israeli Loose Gemstones

Materials

Diamond

  • 1
Get Updated with New Arrivals
Save "1 Carat Loose Gemstones", and we’ll notify you when there are new listings in this category.

1 Carat Loose Gemstones For Sale on 1stDibs

There is a broad range of 1 carat loose gemstones for sale on 1stDibs. All of the items for sale were constructed with extraordinary care, often using 18k Gold, Gold and Platinum. Find a collection of 10 vintage versions or 616 modern creations for a more contemporary example of these cherished accessories. Our inventory is broad and distinctive, with accessories on offer that were made as long ago as the 18th Century to those produced as recently as the 21st Century. Contemporary and Modern are consistently popular styles when it comes to 1 carat loose gemstones. Versions of these items have been a part of the life’s work for many jewelers, but those produced by Merkaba, Sarosi By Timeless Gems and Tamir are consistently popular. Browse our collection of 147 Tourmaline versions today to add the perfect touch to your look. There are many oval cut, cushion cut and emerald cut 1 carat loose gemstones for sale. If you’re browsing the variety of 1 carat loose gemstones for sale, you’ll find that many are available today for women, but there are still pieces to choose from for men.

How Much are 1 Carat Loose Gemstones?

Prices for 1 carat loose gemstones start at $27 and top out at $260,000 with these rings, on average, selling for $6,199.

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.