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1 Carat Loose Gemstones

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1 Aquamarine Santa Maria fac. octagonal 15.2x11mm
By Thomas Leyser
Located in Idar-Oberstein, DE
This Aquamarine has 10,52c.. It is facetted in octagonal shape and the size is 15,2x11mm. The color can be decribed as intensive blue typical for Santa Maria origin. The purity is cl...
Category

2010s European Contemporary Loose Gemstones

Materials

Aquamarine

1 pc. Dazzling 1.5 Emerald Cut Natural Diamond
Located in רמת גן, IL
This stunning diamond is sure to turn heads. It features a sparkling 1.5 carat emerald cut diamond
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Rubelite Tourmaline fac. baguette cut 18x13.5mm, 18.07c.
By Thomas Leyser
Located in Idar-Oberstein, DE
This Rubelite Tourmaline has 18,07c.. It is facetted in baguette shape and the size is 18x13,5mm. The color can be described as very intensiv red, with very small and almost unvisibl...
Category

2010s European Contemporary Loose Gemstones

Materials

Rubelite

1 Sparkling 1.01 Oval Brilliant Cut Natural Diamond
Located in רמת גן, IL
identifier that can be used to track the diamond. 1.01 carat D color (colorless) VVS2 clarity (very, very
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pcs Natural Diamond, 0.61 Ct, Cushion, E, VVS1
Located in רמת גן, IL
Natural and Brilliant Cushion cut diamond with a 0.61 carat E VVS1 grading By Igi Lab the Diamond
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 pc Sparkling 3ct Cushion Modified Brilliant Cut Natural Diamond
Located in רמת גן, IL
unique identifier that can be used to track the diamond. 3 carat D color (colorless) VS1 clarity (very
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Exquisite 1 pc Ideal Cut Round Diamond w/0.57 ct - GIA Certified
Located in רמת גן, IL
, affirming its quality and authenticity. Stone: 1 pc of Diamond Stone carat weight: 0.57 ct Shape: Round
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Sparkling 1 pc Ideal Cut Natural Diamond w/1.24 ct - GIA Certified
Located in רמת גן, IL
Sparkling 1 pc Ideal Cut Natural Diamond w/1.24 ct - GIA Certified This sparkling 1.24 carat
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Timeless 1 pc Ideal Cut Natural Diamond w/3.01 ct - GIA Certified
Located in רמת גן, IL
Timeless 1 pc Ideal Cut Natural Diamond w/3.01 ct - GIA Certified This exceptional 3.01 carat pear
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Splendid 1 pc Ideal Cut Natural Diamonds w/1.02 ct - GIA Certified
Located in רמת גן, IL
Splendid 1 pc Ideal Cut Natural Diamonds w/1.02 ct - GIA Certified This splendid 1.02 carat round
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Dazzling 1 pc Ideal Cut Natural Diamond w/1.00 ct - GIA Certified
Located in רמת גן, IL
Dazzling 1 pc Ideal Cut Natural Diamond w/1.00 ct - GIA Certified This dazzling 1.00 carat oval
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Bright 1 pc Ideal Cut Natural Diamond w/0.61 ct - GIA Certified
Located in רמת גן, IL
Bright 1 pc Ideal Cut Natural Diamond w/0.61 ct - GIA Certified Discover the pure elegance and
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 pc Natural Diamond - 0.70 ct - Round - I - SI2- IGI Certificate
Located in רמת גן, IL
0.70 carat k si3 Ideal cut round brilliant with hrd certificate and laser inscription number. IGI
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pc Natural Diamond, 1.70 Ct, Cushion, J, VS2, GIA Certificate
Located in רמת גן, IL
Natural diamond in a 1.70 carat J VS2 Ideal cut Cushion with GIA Certificate and laser inscription
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pc Natural Diamonds, 0.80 Ct, Cushion, H, SI2, GIA Certificate
Located in רמת גן, IL
Natural diamond in a 0.80 carat H SI2 Ideal cut Cushion with GIA Certificate and laser inscription
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 pc Natural Diamond - 0.40 ct - Round - E - SI1- IGI Certificate
Located in רמת גן, IL
0.40 carat E SI1 Ideal cut round brilliant with IGI certificate and laser inscription number
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pc Natural Diamond, 0.52 Ct, Round, E, VS2, GIA Certificate
Located in רמת גן, IL
Natural diamond in a 0.52 carat E VS2 Ideal cut Round with GIA Certificate and laser inscription
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pc Natural Diamond, 0.42 Ct, Cushion, E, VS1, GIA Certificate
Located in רמת גן, IL
Natural and Ideal cut Cushion diamond in a 0.42 carat E VS1 grading . This diamond comes with GIA
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 pc Natural Diamond - 0.81 ct - Princess - E - VS1- GIA Certificate
Located in רמת גן, IL
Natural princess cut diamond with full of shine and sparkles with a 0.81 carat E VS1 Grading with
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pc Natural Diamond, 0.29 Ct, Round, H, VVS2, GIA Certificate
Located in רמת גן, IL
Natural Round Brilliant diamond in a 0.29 carat H VVS2 with Beautiful cut and shine. This diamond
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 pc Natural Diamond - 0.71 ct - Cushion - J - VS1- GIA Certificate
Located in רמת גן, IL
Natural cushion modified brilliant diamond in a 0.71 carat J VS1 with excellent cut and extremely
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pc Natural Diamond, 1.00 Ct, Round, G, VS1, GIA Certificate
Located in רמת גן, IL
Natural Round Brilliant diamond in a 1.00 carat G VS1 with Beautiful cut and shine. This diamond
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pcs Natural Diamond, 0.50 Ct, Round, F, SI1, GIA Certificate
Located in רמת גן, IL
Natural round diamond with a 0.50 carat F SI1 graded by GIA Laboratory with a beautiful cut and
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 pc Natural Diamond - 0.29 ct - Round - F - SI2- GIA Certificate
Located in רמת גן, IL
Natural round brilliant diamond in a 0.29 carat F SI2 graded by GIA Laboratory with Excellent cut
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pcs Natural Diamond, 1.31 Ct, Round, F, VVS2, GIA Certificate
Located in רמת גן, IL
Natural round brilliant diamond in a 1.31 carat F VVS2 graded by GIA Laboratory with beautiful cut
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 pc Natural Diamond - 0.41 ct - Round - I - SI2- GIA Certificate
Located in רמת גן, IL
Natural round brilliant diamond in a 0.41 carat I SI2 graded by GIA Laboratory with Excellent cut
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pc Natural Diamond, 1.06 Ct, Round, E, Vvs1, Gia Certificate
Located in רמת גן, IL
Natural round brilliant diamond in a 1.06 carat E VVS1 graded by GIA Laboratory with Excellent cut
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 pc Natural Diamond - 0.50 ct - Radiant - I - VS1- GIA Certificate
Located in רמת גן, IL
Natural Cut-Cornered Rectangular modified diamond in a 0.50 carat I VS2 with Beautiful cut and
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pc Natural Diamond, 0.75 Ct, Cushion, J, SI1, GIA Certificate
Located in רמת גן, IL
A natural diamond in 0.75 carat J SI1 Cushion Shaped with maximum shine and sparkles, sealed in a
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pc Natural Diamond, 0.92 Ct, Radiant, F, VS2, IGI Certificate
Located in רמת גן, IL
Amazing Natural radiant cut diamond in a 0.92 carat F VS2 graded by IGI Laboratory with beautiful
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pc Natural Diamonds, 0.33 Ct, Round, F, SI, IGI Certificate
Located in רמת גן, IL
Natural round brilliant diamond in a 0.33 carat F SI1 graded by IGI Laboratory with beautiful cut
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pc Natural Diamond, 1.00 Ct, Round, F, VS1, GIA Certificate
Located in רמת גן, IL
Ideal and natural round brilliant diamond in a 1.00 carat F VS1 graded by GIA Laboratory with
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Dazzling 1 Pc Natural Diamond with 0.50ct Round F VS1 GIA Certificate
Located in רמת גן, IL
1 Sparkling natural round brilliant cut diamond in a 0.5 carat F VS1 excellent cut. This diamond
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Sparkling 1 pc Natural Diamond 0.75 ct Cushion J SI1 GIA Certificate
Located in רמת גן, IL
1 Sparkling natural cushion modified cut diamond in a 0.75 carat J SI1 with excellent cut. This
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Sparkling 1 pc Natural Diamond 1.0 ct Round G VVS2 GIA Certificate
Located in רמת גן, IL
Sparkling natural cut round brilliant diamond in a 1 carat G VVS2 very good cut. This diamond comes
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pc Natural Diamonds, 0.91 Ct, Brilliant, G, IF Flawless , GIA Certificate
Located in רמת גן, IL
Natural diamond in a 0.97 carat G VS2 Ideal cut Brilliant with GIA Certificate and laser
Category

2010s Israeli Loose Gemstones

Materials

Diamond

GIA Certified 1 ct Fancy Deep Brownish Yellow Shield cut Natural Diamond
Located in New York, NY
ITEM DESCRIPTION Stone Shape: Shield Diamond Weight: 1 Carat Color: Fancy Brownish Yellow
Category

21st Century and Contemporary Modern Loose Gemstones

Materials

Diamond

1 pc Natural Diamond - 0.59 ct - Round, Brilliant - I - VVS1- GIA Certificate
Located in רמת גן, IL
0.59 carat I VVS1 Ideal cut Round Natural Diamond with GIA Certificate and laser inscription number
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Dazzling 1 pc Natural Diamond 1.03 ct Round I VVS1 GIA Certificate
Located in רמת גן, IL
Sparkling natural cut round brilliant diamond in a 1.03 carat I VVS1 WITH excellent IDEAL cut. This
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pc Natural Diamond, 0.51 Ct, Round, Brilliant, E, VS2, GIA Certificate
Located in רמת גן, IL
Natural diamond in a 0.51 carat E VS2 Ideal cut Round with GIA Certificate and laser inscription
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pc Natural Diamond, 0.21 Ct, Round, D Colourless , SI1, GIA Certificate
Located in רמת גן, IL
Beautiful and shiny Ideal Cut Diamond in a 0.21 carat weight with GIA Certificate and laser
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 pc Natural Diamonds - 1.15 ct - Round Brilliant I VVS2 GIA Certificate
Located in רמת גן, IL
Natural cut Round Brilliant diamond in a 1.15 carat I VVS2 with beutiful cut and extremely shine
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pc Natural Diamond, 1.01 Ct, Emerald Cut, F, VS2, IGI Certificate
Located in רמת גן, IL
Beautiful and Natural emerald cut diamond in a 1.01 carat F VS2 cut. This diamond comes with IGI
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pc Natural Diamond, 0.40 Ct, Emerald, D Colourless , VVS, GIA Certificate
Located in רמת גן, IL
Natural emerald cut diamond in a 0.40 carat D VVS1 with excellent cut and extremely shine. This
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 pcs Natural Diamond - 0.50 ct - Cushion - D colorless - VVS1, GIA Cert
Located in רמת גן, IL
Natural cushion diamond in a 0.50 carat D VVS1 graded by GIA Laboratory with beautiful cut and
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 pc Natural Diamond - 0.62 ct - Emerald - D (colourless) - VS2- GIA Certificate
Located in רמת גן, IL
Natural Emerald Cut diamond in a 0.62 carat D VS2 with excellent cut and extremely shine. This
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pc Natural Diamond, 1.00 Ct, Cushion, D Colorless - If Flawless , IGI
Located in רמת גן, IL
Natural square cushion modified brilliant diamond in a 1.00 carat D IF with excellent cut and
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 pc Natural Diamond - 1.53 ct - Pear - D (colourless) - VS1- IGI Certificate
Located in רמת גן, IL
Natural and beautiful pear diamond in a 1.53 carat with D VS1 grading by IGI Laboratory with
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Stunning 1 Pc Natural Diamonds with 0.70 Ct Radiant H VS1 GIA Certificate
Located in רמת גן, IL
1 Sparkling natural cut Radiant diamond in a 0.7 carat H VS1 EX cut. This diamond comes with GIA
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Sparkling 1 pc Natural Diamond with 0.90 ct Pear G VS2 GIA Certificate
Located in רמת גן, IL
1 Sparkling natural cut Pear diamond in a 0.9 carat G VS2 Good cut. This diamond comes with GIA
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Dazzling 1 pc Natural Diamond with 0.54 ct Round D VVS1 GIA Certificate
Located in רמת גן, IL
1 sparkling natural round brilliant cut diamond in a 0.54 carat D VVS1 excellent cut. This diamond
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 pc Natural Diamond - 4.01 ct - Heart - D (colourless) - VS2- GIA Certificate
Located in רמת גן, IL
Ideal cut and Beautiful rare cutted heart Diamond in a 4.01 carat t with the Highest color D with
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Dazzling 1 pc Natural Diamond 0.50 ct Square J IF Flawless GIA Certificate
Located in רמת גן, IL
1 Sparkling natural Square Modified cut diamond in a 0.5 carat J IF Excellent cut. This diamond
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Sparkling 1 pc Natural Diamond with 0.51 ct Round F SI1 GIA Certificate
Located in רמת גן, IL
Sparkling natural cut round brilliant diamond in a 0.51 carat F SI1 very good cut. This diamond
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Dazzling 1 pc Natural Diamond with 1.05 ct Round D IF GIA Certificate
Located in רמת גן, IL
Sparkling natural cut round brilliant diamond in a 1.05 carat D IF excellent ideal cut. This
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Sparkling 1 Pc Natural Diamonds with 0.85 Ct Round H VVS2 GIA Certificate
Located in רמת גן, IL
Stunning Ideal Cut Round Brilliant Diamond in a 0.85 carat H VVS2 Extremely shine and sparkle. This
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 pc Natural Diamond - 8.04 ct - Square Emerald / Asscher - F - VVS1- GIA Cert
Located in רמת גן, IL
Ideal cut and Beautiful Asher or square emerald Diamond in a 8.04 carat t with a-rare size and Cut
Category

2010s Israeli Loose Gemstones

Materials

Diamond

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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.