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
Stunning 1 pc Natural Diamond with 0.52 ct Heart J VS1 GIA Certificate
Located in רמת גן, IL
1Sparkling natural Heart Brilliant cut diamond in a 0.52 carat J VS1 Excellent cut. This diamond
Category

2010s Israeli Loose Gemstones

Materials

Diamond

9.20 cts Pink Sapphires 1 Set For Bracelet Heart cut stone For Fine Jewelry gem
Located in Jaipur, RJ
Pink Sapphire 1 Set For Bracelets Heart cutstone For Fine Jewellery gem Size & Weight : 3.5x4 MM
Category

2010s Unknown Modern Loose Gemstones

Materials

Pink Sapphire

GRS Certified 1, 99 Carat Paraiba Tourmaline Ring, Pendant Loose Gemstone
By Filippo G G
Located in Geneva, CH
Paraiba Tourmaline cushion cut stone weighing a total of 1,99 Carats, offered loose to create an
Category

2010s Loose Gemstones

Materials

Tourmaline, Paraiba

Blue Tourmaline Loose Cushion Cut, AAA Grade GIA Certified 1 Carat
Located in Auckland, NZ
1 carats in weight 5,5 x 5,3 x 4,8 mm in size Nice Blue topaz color tourmaline Truly
Category

2010s Pakistani Modern Loose Gemstones

Materials

Tourmaline

Antique 2.05 Carat Pear Shape GIA D/ SI 1, Buy It Loose or with a Custom Setting
Located in New York, NY
GIA beautifully pear shape , D in color and SI 1 in clarity. ( only imperfection is a feather
Category

21st Century and Contemporary Unknown Contemporary Loose Gemstones

Materials

Diamond

A Pair of 1 Carat Unheated Burmese Pigeons Blood Rubies
Located in London, GB
A fine pair of 1 carat each 'Pigeons Blood' unheated rubies. These Cushion cut rubies are
Category

2010s Burmese Loose Gemstones

Materials

Ruby

GIA Certified Natural Black Diamond 1 Carat Ring in 18K Black Gold Round Cut
Located in Darmstadt, DE
GIA Certified Natural Black Diamond 1 Carat Ring in 18K Black Gold Round Cut Black is Beautiful
Category

2010s German Modern Loose Gemstones

Materials

Black Diamond, Gold, 18k Gold

GIA Certified Natural Black Diamond 1 Carat Ring in 18K Black Gold Emerald Cut
Located in Darmstadt, DE
GIA Certified Natural Black Diamond 1 Carat Ring in 18K Black Gold Emerald Cut Black is Beautiful
Category

2010s German Modern Loose Gemstones

Materials

Black Diamond, Diamond, Gold, 18k Gold

1 Carat Blue Sapphire Pear Loose Gemstone
Located in Fort Lee, NJ
good luck & fortune in life. Explore a vast range of Sapphires in our store available as a loose
Category

2010s Sri Lankan Loose Gemstones

Materials

Blue Sapphire

1 Carat Ceylon Sapphire Loose Gemstone Oval 7x5mm
Located in Columbus, OH
NNJ Designs presents a 0.98 carat Ceylon Sapphire loose gemstone! This Ceylon Sapphire gemstone
Category

2010s American Loose Gemstones

Materials

Sapphire

Vivid Green Tsavorite Garnet, Faceted Gem, 1, 82 Ct., Loose Gemstone, Marquise
Located in Kirschweiler, DE
We are delighted to be able to offer, this 1,82 ct. Tsavorite Garnet from our collection. This beautiful gem has a vivid green color and a great fire. Cutting, proportion and cleanes...
Category

21st Century and Contemporary German Contemporary Loose Gemstones

Materials

Garnet, Tsavorite

Luxurious 1 carat Emerald Cut Brilliant Diamond
Located in רמת גן, IL
Natural cut Emerald diamond in a 1 carat D IF cut. This diamond comes with GIA Certificate and
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 pc Sparkling Round Brilliant Diamond with 0.90 Carat
Located in רמת גן, IL
This stunning diamond is a single piece boasting a substantial carat weight of 0.90. Its Round
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1pc Dazzling 1 Carat Cushion Modified Brilliant Natural Diamond
Located in רמת גן, IL
Carat Weight: 1.0 Shape: Cushion Modified Brilliant Color: G Clarity: VVS1 Polish: Excellent
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 pc Dazzling Heart Brilliant Diamond with 1.00 Carat
Located in רמת גן, IL
. Stone: 1 pcs of Diamond Stone carat weight: 1.00ct Shape: Heart Brilliant Color grade: E Clarity grade
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1pc Dazzling Natural cut Emerald diamond in a 1 carat
Located in רמת גן, IL
Natural cut Emerald diamond in a 1 carat D VVS1 cut. This diamond comes with GIA Certificate and
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1pc Sparkling Natural cut Round diamond in a 1 carat
Located in רמת גן, IL
Natural cut Round diamond in a 1 carat D IF ideal cut by gia lab 3ex This diamond comes with GIA
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 pc Dazzling Square Emerald Brilliant Diamond in 1.01 Carat
Located in רמת גן, IL
style with the timeless beauty of this magnificent diamond. Stone: 1 pc of Diamond Stone carat weight
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1pc Dazzling Natural cut Emerald diamond in a 1 carat
Located in רמת גן, IL
Natural cut Emerald diamond in a 1 carat D VS1 cut. This diamond comes with GIA Certificate and
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 pc. Sparkling 1.51 Carat Cushion Modified Brilliant Natural Diamonds
Located in רמת גן, IL
Carat Weight: 1.51 Color: D Clarity: VS2 Cut: Cushion Modified Brilliant Polish: Excellent Symmetry
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Dazzling 1 Pc Natural Diamond W/ 1.70 Carat Cushion D VVS1 IGI Certificate
Located in רמת גן, IL
One glittering cushion modified brilliant cut natural diamond in a 1.7 carat D VVS1 with very good
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Dazzling 1 Pc Natural Diamond with 0.72 Carat Cushion G IF IGI Certificate
Located in רמת גן, IL
A sparkling natural square cushion modified diamond in a 0.72 carat G IF with excellent cut. This
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Sparkling 1 Pc Natural Diamond with 0.72 Carat Cushion G IF IGI Certificate
Located in רמת גן, IL
A sparkling natural square cushion modified diamond in a 0.72 carat G IF with excellent cut. This
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Sparkling 1 pc Natural Diamond with 0.90 Carat Cushion D IF IGI Certificate
Located in רמת גן, IL
A sparkling natural square cushion modified diamond in a 0.9 carat D IF excellent cut. This
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Exquisite 0.70 ct 1 pc Ideal Cut Diamond – GIA Certified
Located in רמת גן, IL
Exquisite 0.70 ct 1 pc Ideal Cut Diamond – GIA Certified This 0.70-carat emerald-cut diamond
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pcs Natural Diamond, 0.40 Ct, Pear, D Colourless , VVS2
Located in רמת גן, IL
Natural Pear Brilliant diamond in a 0.40 carat D VVS2 with Beautiful cut and shine. This diamond
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Magnificent 1 pc Ideal Cut Natural Diamond w/2.16ct - IGI Certified
Located in רמת גן, IL
. Stone: 1 pc of Diamond Stone carat weight: 2.16ct Shape: Round Color grade: F Clarity grade: VS2
Category

2010s Israeli Loose Gemstones

Materials

Diamond

Magnificent 1 pc Ideal Cut Natural Diamond w/2.16 ct - IGI
Located in רמת גן, IL
guaranteed. Stone: 1 pc of Diamond Stone carat weight: 2.16 ct Shape: Round Color grade: F Clarity grade
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 pc Natural Diamond - 0.34 ct - Round - E - VS1- GIA Certificate
Located in רמת גן, IL
Natural Round Brilliant diamond in a 0.34 carat E VS1 with Beautiful cut and shine. This diamond
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 pc Natural Diamond - 0.73 ct - Round - E - SI1- GIA Certificate
Located in רמת גן, IL
Ideal and natural round brilliant diamond in a 0.73 carat E SI1 graded by GIA Laboratory with
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pc Natural Diamond 0.53 Ct Heart D IF, IGI Certificate
Located in רמת גן, IL
Stunning 1 natural cut heart diamond in a 0.53 carat D IF excellent cut. This diamond comes with
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 pc Natural Diamond - 0.56 ct - Cushion - E - VVS2- GIA Certificate
Located in רמת גן, IL
0.56 carat E VVS2 fancy cut CUSHION with Gia certificate and laser inscription number. GIA
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 pc Natural Diamond - 0.96 ct - Oval - K - VS2- GIA Certificate
Located in רמת גן, IL
0.96 carat K VS2 fancy cut OVAL with Gia certificate and laser inscription number. GIA 7362730207
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pc Natural Diamond, 1.00 Ct, Cushion, I, VS2, GIA Certificate
Located in רמת גן, IL
Gorgeus Natural diamond in a 1.00 carat I VS2 Ideal cut Cushion with GIA Certificate and laser
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 pc Natural Diamond - 1.17 ct - Princess - F - VS2- GIA Certificate
Located in רמת גן, IL
Natural and Preety princess cut diamond with a 1.17 carat with F VS2 grading by GIA lab with
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pc Natural Diamond, 1.00 Ct, Cushion, G, VS1, GIA Certificate
Located in רמת גן, IL
Natural and extremely brilliant cushion cut diamond with a 1.00 carat G VS1 Ideal cut Cushion with
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 pc Natural Diamond - 0.70 ct - Asscher - G - VVS1- IGI Certificate
Located in רמת גן, IL
Natural diamond in a 0.70 carat G VVS1 Ideal cut Asscher with IGI Certificate sealed in a security
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pc Natural Diamond, 0.40 Ct, Emerald, E, VVS2, GIA Certificate
Located in רמת גן, IL
Natural emerald cut diamond in a 0.40 carat E VVS2 with Beautiful cut and shine. This diamond comes
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 pcs Natural Diamond - 1.23 ct - Round - E - VS1- GIA certificate
Located in רמת גן, IL
Natural diamond in a 1.23 carat E VS1 Ideal cut Round with Excellent cut grade and full of sparkles
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 pc Natural Diamond - 0.94 ct - Cushion - I - SI1- GIA Certificate
Located in רמת גן, IL
Natural cushion modified brilliant diamond in a 0.94 carat I SI1 with Beautiful cut and shine. This
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 pcs Natural Diamond - 1.31 ct - Round - G - VVS2- GIA certificate
Located in רמת גן, IL
Natural Round Brilliant diamond in a 1.31 carat G VVS2 with excellent cut and extremely shine. This
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pc Natural Diamond, 0.90 Ct, Cushion, J, VS1, GIA Certificate
Located in רמת גן, IL
Natural cushion modified brilliant diamond in a 0.90 carat J VS1 with Beautiful cut and shine. This
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pcs Natural Diamond 0.42 Ct Cushion H VVS1 GIA Certificate
Located in רמת גן, IL
Natural and ideal cut cushion diamond with a 0.42 carat H VVS1 Ideal cut Cushion and extremely
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 pcs Natural Diamond - 0.73 ct - Round - E - SI2- IGI certficate
Located in רמת גן, IL
Natural round brilliant diamond with a 0.73 carat E SI2 with excellent cut and beautiful luster
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pc Natural Diamond, 0.41 Ct, Round, G, VS2, GIA Certificate
Located in רמת גן, IL
Natural round brilliant diamond in a 0.41 carat G VS2 with excellent cut and extremely shine. This
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pc Natural Diamond, 0.57 Ct, Cushion, F, VS2, GIA Certificate
Located in רמת גן, IL
Natural cushion diamond with a 0.57 carat and F VS2 grading by GIA lab with a beautiful cut and
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 pc Natural Diamond - 0.41 ct - Emerald - E - VS2- GIA Certificate
Located in רמת גן, IL
Natural emerald cut diamond in a 0.41 carat E VS2 with Beautiful cut and shine. This diamond comes
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 pcs Diamond - 0.62 ct - Emerald - D (colourless) - VVS1- GIA certificate
Located in רמת גן, IL
Natural emerald cut diamond in a 0.62 carat D VVS1 graded by GIA Laboratory with a beautiful cut
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 pc Natural Diamond - 0.39 ct - Round - H - SI1- GIA Certificate
Located in רמת גן, IL
Natural round brilliant diamond in a 0.39 carat H SI1 graded by GIA Laboratory with Excellent cut
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pc Natural Diamond, 1.51 Ct, Princess, F, VS1, GIA Certificate
Located in רמת גן, IL
Natural princess cut diamond in a 1.51 carat F VS1 graded by GIA Laboratory with beautiful cut and
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 pcs Natural Diamond - 0.48 ct - Oval - G - VVS2-IGI certificate
Located in רמת גן, IL
Natural Oval Brilliant diamond in a 0.48 carat G VVS2 with Beautiful cut and shine. This diamond
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 pc Natural Diamond - 0.60 ct - Round - I - VVS2- GIA certificate
Located in רמת גן, IL
Natural round diamond in a 0.60 carat I VVS2 graded by GIA Laboratory with a beautiful cut and
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pc Natural Diamond, 0.56 Ct, Round, H, SI1, GIA Certificate
Located in רמת גן, IL
A natural diamond in 0.56 carat H SI1 with gorgeous cut round brilliant, sealed in a security
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 pc Natural Diamond - 0.52 ct - Oval - G - VVS2- GIA Certificate
Located in רמת גן, IL
A Natural Diamond in 0.52 carat G VVS2 Oval Cut with maximum shine and sparkles, sealed in a
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 pc Natural Diamond - 0.50 ct - Oval - I - VS1- GIA Certificate
Located in רמת גן, IL
A natural diamond in 0.50 carat I VS1 Oval Cut with maximum shine and sparkles, sealed in a
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 pc Natural Diamond - 0.72 ct - Round - E - SI1- IGI Certificate
Located in רמת גן, IL
Natural round brilliant diamond in a 0.72 carat E SI1 graded by IGI Laboratory with beautiful cut
Category

2010s Israeli Loose Gemstones

Materials

Diamond

1 Pc Natural Diamond, 0.88 Ct, Pear, I , VS1, IGI Certificate
Located in רמת גן, IL
Natural pear brilliant diamond in a 0.88 carat I VS1 graded by IGI Laboratory with beautiful cut
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.