$1,850
W 0.31 in D 0.2 in L 0.38 in
Natural Violetish-BLUE Spinel loose gemstone 3.08 ct., High quality, Tanzania
By GRALJEWELRY
Located in Dublin, D
Natural Violetish-BLUE Spinel Loose gemstone GFCO Laboratory certified Gemstone Color: Violetish
Spinel
$599
H 0.2 in W 0.24 in L 0.48 in
2.16 Cts Tanzania Purple Spinel Marquise Faceted Natural Gemstone for Jewelry
Located in Jaipur, RJ
Tanzania Blue Spinel Marquise Faceted Natural Cut Stone for Fine Jewelry Weight - 2.16 Cts Size
Spinel
$1,700
W 0.36 in D 0.19 in L 0.36 in
Natural Violet Spinel loose gemstone 2.97 ct, High quality, Certificate Tanzania
By GRALJEWELRY
Located in Dublin, D
Natural Violet Spinel loose gemstone 2.97 ct., High quality, Octagon cut, Origin Tanzania. GFCO
Spinel
$1,360
W 0.27 in D 0.2 in L 0.43 in
Natural Spinel Loose Gemstone 3.58 Ct., Certificate Octagon cut. Origin Tanzania
By GRALJEWELRY
Located in Dublin, D
Natural Spinel Loose Gemstone 3.58 Ct., Certificate, Octagon cut. Origin Tanzania! Laboratory
Spinel
$667
W 0.22 in D 0.18 in L 0.36 in
Natural Blue Spinel 2.14 ct., loose gemstone , Octagon cut, origin Tanzania
By GRALJEWELRY
Located in Dublin, D
Natural Blue Spinel 2.14 ct., loose gemstone , Octagon cut, origin Tanzania, certificate GFCO GFCO
Spinel
$760Sale Price|20% Off
W 0.29 in D 0.22 in L 0.31 in
2.55 Carat Natural Loose Pink Spinel Stone Cushion Cut Tanzanian Gemstone
Located in Bangkok, TH
, revealing its radiant beauty from every angle. Mined in Tanzania, a renowned source of fine-quality spinels
Spinel
$630Sale Price|30% Off
W 0.23 in D 0.22 in L 0.4 in
2.95 Carat Natural Loose Purple Spinel Stone Emerald Cut Tanzanian Gemstone
Located in Bangkok, TH
2.95 carat Tanzanian Purple Spinel blends luxurious color, precision cutting, and timeless beauty
Spinel
$650
W 0.26 in D 0.19 in L 0.36 in
2.20 Carat Natural Loose Pink Spinel Oval Shape Tanzanian’s Gemstone
Located in Peshawar, PK
: Non Origin: Tanzania Shape : Oval Certificate: On Demand Spinel is a captivating gemstone prized for
Spinel
1.75 Carat Natural Loose Pink Spinel From Tanzanian’s Mine Africa
Located in Peshawar, PK
Origin: Tanzania Shape : Cushion Certificate: On Demand Spinel is a captivating gemstone prized for its
Spinel
$690
W 0.38 in D 0.22 in L 0.33 in
Spinel VIVID Green-Blue natural gemstone, heart cut, Origin Tanzania, Certified
By GRALJEWELRY
Located in Dublin, D
Natural Green-Blue Spinel gemstone Laboratory certified GFCO Gemstone Color: Vivid Green-blue/Blue
Spinel
$780
W 0.29 in D 0.18 in L 0.35 in
2.30 Carat Natural Loose Pink Spinel Cushion Shape Tanzania’s Gemstone
Located in Peshawar, PK
: Non Origin: Tanzania Shape : Cushion Certificate: On Demand Spinel is a captivating gemstone prized
Spinel
$1,150
W 0.25 in D 0.19 in L 0.29 in
Certified 1.71 Carat Natural Loose Red Spinel Gemstone From Tanzania
Located in Peshawar, PK
: Cushion Origin: Tanzania Treatment: None Certificate: AIG Certificate Available Spinel is a captivating
Spinel, Other
$380
W 0.25 in D 0.17 in L 0.29 in
1.50 Carat Natural Loose Light Purple Spinel Gemstone From Tanzania
Located in Peshawar, PK
Faceted Spinel Weight : 1.50 Carat Dimension: 7.2 x 6.2 x 4.1 Mm Origin: Tanzania Colour: Light
Spinel, Other
$1,100
W 0.26 in D 0.15 in L 0.28 in
Certified 1.44 Carat Natural Loose Red Spinel Gemstone From Tanzania
Located in Peshawar, PK
Origin: Tanzania Treatment: None Certificate: AIG Certificate Available Spinel is a captivating
Spinel, Other
1.25 Carat Natural Loose Violet Blue Spinel Gemstone From Tanzania
Located in Peshawar, PK
Faceted Spinel Weight : 1.25 Carat Dimension: 7 x 6.1 x 3.5 Mm Origin: Tanzania Colour: Violet
Spinel, Other
$1,000
W 0.23 in D 0.19 in L 0.26 in
AIG Certified 1.32 Carat Natural Loose Cobalt Spinel From Tanzania
Located in Peshawar, PK
Faceted Cobalt Spinel Weight : 1.32 Carat Dimension: 6.48 x 5.74 x 4.71 Mm Colour: Blue Origin
Spinel, Other
$750Sale Price|25% Off
W 0.24 in D 0.15 in L 0.31 in
Certified 1.31 Carat Natural Loose Cobalt Blue Spinel From Tanzania
Located in Peshawar, PK
Faceted Cobalt Spinel Weight : 1.31 Carat Dimension: 7.84 x 5.94 x 3.80 Mm Colour: Blue Origin
Spinel, Other
$504Sale Price|20% Off
W 0.2 in D 0.14 in L 0.28 in
1.95 Carat Natural Loose Purplish Pink Spinel Cushion Cut Tanzania Gemstone
Located in Bangkok, TH
Weight 1.95 carats Dimensions 7.1x5.0x3.5 mm Treatment None Origin Tanzanian Clarity Eye Clean
Spinel
$2,150
W 3.13 in D 2.27 in L 3.14 in
GFCO Certified Natural VS 3.22ct Violet Spinel gemstone, Cushion cut, Tanzania
By GRALJEWELRY
Located in Dublin, D
Natural Spinel gemstone GFCO Laboratory certified Gemstone Color: Violet Gemstone Type: Spinel
Spinel
2.10 Carat Natural Loose Pink Spinel Gemstone From Tanzanian Mine
Located in Peshawar, PK
Faceted Pink Spinel Weight: 2.10 Carat Dimension: 7.6 x 7.6 x 5.1 Mm Colour: Pink Origin: Tanzania
Spinel
$760Sale Price|20% Off
W 0.3 in D 0.22 in L 0.33 in
Certified 2.92 Carat Natural Loose Purple Spinel Gemstone From Tanzania
Located in Peshawar, PK
: Tanzania Treatment: Non Certificate: AIG Certificate Available Shape: Cushion Spinels is a captivating
Spinel, Other
$750
W 0.2 in D 0.12 in L 0.32 in
1.00 Carat Natural Loose Spinel Emerald Shape Gemstone From Tanzania
Located in Peshawar, PK
Origin: Tanzania Treatment: None Certificate: On Customer Demand Spinel is a captivating gemstone
Spinel, Other
$660Sale Price|25% Off
W 0.23 in D 0.16 in L 0.24 in
Certified 1.12 Carat Natural Loose Purple Spinel Gemstone From Tanzania
Located in Peshawar, PK
: Tanzania Treatment: Non Certificate: On Customer Demand Shape: Cushion Spinels is a captivating gemstone
Spinel, Other
$595Sale Price|30% Off
W 0.23 in D 0.14 in L 0.23 in
Certified 1.05 Carat Natural Loose Blue Spinel Gemstone From Tanzania
Located in Peshawar, PK
Faceted Spinel Weight : 1.05 Carat Dimension: 5.83 x 5.82 x 3.53 Mm Colour: Blue Origin: Tanzania
Spinel, Other
$400Sale Price|20% Off
W 0.26 in D 0.17 in L 0.31 in
1.90 Carat Natural Loose Spinel Cushion Cut Gemstone From Tanzania
Located in Peshawar, PK
Faceted Spinel Weight : 1.90 Carat Dimension: 7.8 x 6.6 x 4.3 Mm Colour: Purple Origin: Tanzania
Spinel, Other
1.60 Carat Natural Loose Spinel Cushion Cut Gemstone From Tanzania
Located in Peshawar, PK
: Tanzania Treatment: Non Certificate: On Customer Demand Shape: Cushion Spinels is a captivating gemstone
Spinel, Other
$592Sale Price|20% Off
W 0.28 in D 0.17 in L 0.3 in
1.90 Carat Natural Loose Purplish Pink Spinel Cushion Cut Tanzanian Gemstone
Located in Bangkok, TH
Tanzania, a source renowned for producing exceptional spinels, this gem offers both durability and elegance
Spinel
$336Sale Price|20% Off
W 0.24 in D 0.16 in L 0.25 in
1.20 Carat Natural Loose Cobalt Blue Spinel Emerald Cut Tanzanian Gemstone
Located in Bangkok, TH
Weight 1.20 carat Dimensions 6.3x6.0x3.9mm Treatment None Origin Tanzanian Clarity Eye Clean
Spinel
1.80 Carat Natural Loose Spinel Oval Shape Gemstone From Tanzania
Located in Peshawar, PK
Faceted Spinel Weight: 1.80 Carat Dimension: 8.9 x 6.6 x 4 Mm Colour: Purple Origin: Tanzania
Spinel, Other
$280Sale Price|20% Off
W 0.25 in D 0.17 in L 0.24 in
1.20 Carat Natural Loose Pink Spinel Stone Cushion Cut Tanzanian Gemstone
Located in Bangkok, TH
Weight 1.20 carat Dimensions 6x6.1x4.1mm Treatment None Origin Tanzania Clarity VVS Shape Cut
Spinel
$624Sale Price|20% Off
W 0.23 in D 0.28 in L 0.36 in
3.40 Carat Natural Loose Lavender Spinel Stone Oval Cut Tanzanian Gemstone
Located in Bangkok, TH
Tanzania, a region admired for producing high-quality Spinel, this gemstone stands out for its uniqueness
Spinel
$690
W 0.29 in D 0.19 in L 0.32 in
Natural Grey Spinel loose gemstone 2.11 ct., High quality, Cushion cut, Tanzania
By GRALJEWELRY
Located in Dublin, D
Natural Grey Spinel gemstone from Tanzania GFCO Laboratory certified Gemstone Color: Grey Gemstone
Spinel
$690
W 0.25 in D 0.2 in L 0.3 in
Natural Grey-Blue Spinel loose gemstone 2.06 ct. High quality, Cushion, Tanzania
By GRALJEWELRY
Located in Dublin, D
Natural Grey-Blue Spinel gemstone from Tanzania GFCO Laboratory certified Gemstone Color: Bluish
Spinel
$690
W 0.26 in D 0.19 in L 0.31 in
Natural Grey Spinel loose gemstone 2.03 ct., High quality, Cushion cut, Tanzania
By GRALJEWELRY
Located in Dublin, D
Natural Bluish-Grey Spinel gemstone from Tanzania GFCO Laboratory certified Gemstone Color: Bluish
Spinel
$1,300Sale Price|20% Off
W 0.28 in D 0.2 in L 0.36 in
2.76 carats Lavender Loose Spinel Stone Emerald Cut Natural Tanzanian Gemstone
Located in Bangkok, TH
Weight 2.76 carats Dimensions 9.08x7.00x5.01 mm Treatment none Origin Tanzania Clarity Loupe
Spinel
$670
W 0.28 in D 0.2 in L 0.29 in
Natural Grey-blue Spinel loose gemstone 2.05 ct., cushion cut, Origin Tanzania
By GRALJEWELRY
Located in Dublin, D
Natural Grey-blue Spinel gemstone from Tanzania GFCO Laboratory certified Gemstone Color: Blue
Spinel
$760
W 0.28 in D 0.19 in L 0.37 in
Natural Grey Spinel loose gemstone 2.33 ct., High quality, Oval cut, Tanzania
By GRALJEWELRY
Located in Dublin, D
Natural Grey Spinel gemstone from Tanzania GFCO Laboratory certified Gemstone Color: Bluish-Grey
Spinel
$670
W 0.28 in D 0.2 in L 0.35 in
Natural Grey Spinel loose gemstone 2.14 ct., High quality, Oval cut, Tanzania
By GRALJEWELRY
Located in Dublin, D
Natural Grey-Blue Spinel gemstone from Tanzania GFCO Laboratory certified Gemstone Color: Grey
Spinel
$870
W 0.31 in D 0.19 in L 0.34 in
Spinel 2.61 Ct Grey-Blue loose natural gemstone, High quality, Cushion, Tanzania
By GRALJEWELRY
Located in Dublin, D
Natural Grey-Blue Spinel gemstone from Tanzania GFCO Laboratory certified Gemstone Color: Grey
Spinel
$690
W 0.29 in D 0.2 in L 0.3 in
Natural Grey-blue Spinel loose gemstone 2.09 ct. High quality, Octagon, Tanzania
By GRALJEWELRY
Located in Dublin, D
Natural Grey-blue Spinel gemstone from Tanzania GFCO Laboratory certified Gemstone Color: Grey
Spinel
$710
W 0.29 in D 0.18 in L 0.34 in
Natural Grey-Blue Spinel loose gemstone 2.19 ct. High quality, Cushion, Tanzania
By GRALJEWELRY
Located in Dublin, D
Natural Grey-Blue Spinel gemstone from Tanzania GFCO Laboratory certified Gemstone Color: Grey
Spinel
$380
W 0.26 in D 0.13 in L 0.25 in
0.85 Carat Natural Loose Pink Spinel Heart Shape Tanzania’s Gemstone
Located in Peshawar, PK
: Non Origin: Tanzania Shape : Heart Certificate: On Demand Spinel is a captivating gemstone prized for
Spinel
$880
W 0.27 in D 0.22 in L 0.36 in
Natural Blue Spinel loose gemstone 2.55 ct. High quality, Oval, Origin Tanzania
By GRALJEWELRY
Located in Dublin, D
Natural greyish-Blue Spinel loose gemstone! GFCO Laboratory certified Gemstone Color: greyish-Blue
Spinel
$7,525
H 0.23 in L 0.42 in
Certified 5.00 Carats Tanzania Pink Spinel Top Quality Cut stone Natural Gems
Located in Jaipur, RJ
Certified 5.00 Carats Tanzania Pink Spinel Top Quality Cut stone Natural Gems Weight - 5.00 Carats
Spinel
$699
H 0.2 in W 0.24 in L 0.36 in
2.13 Carats Blue Spinel Oval Faceted Natural Gemstone for Fine Jewelry Tanzania
Located in Jaipur, RJ
Tanzania Blue Spinel Oval Faceted Natural Cut Stone for Fine Jewelry Origin - Tanzania Weight
Spinel
$4,860
H 0.32 in W 0.28 in D 0.24 in L 0.36 in
5.40 Carats Tanzania Mahenge Pink Spinel Cut stone For Jewelry Natural Gemstone
Located in Jaipur, RJ
5.40 Carats Tanzania Mahenge Pink Spinel Cut stone For Jewelry Natural Gemstone Weight - 5.40
Spinel
$6,088
H 0.2 in W 0.28 in D 0.24 in L 0.32 in
15.22 Carats Tanzania Mahenge Pink Spinel Top Quality Cut stone Natural Gem
Located in Jaipur, RJ
15.22 Carats Tanzania Mahenge Pink Spinel Top Quality Cut stone Natural Gem Weight - 15.22 Carats
Spinel
$499
H 0.12 in W 0.16 in L 0.24 in
1.06 Carats Tanzania Blue Spinel Oval Faceted Natural Cut Stone for Jewelry
Located in Jaipur, RJ
Tanzania Blue Spinel Oval Faceted Natural Cut Stone for Jewelry Weight - 1.06 Ct Size - 6x4x3 mm
Spinel
$439
H 0.2 in W 0.24 in L 0.28 in
1.11 Carats Tanzania Blue Spinel Oval Faceted Natural Cutstone for ring Jewelry
Located in Jaipur, RJ
Tanzania Blue Spinel Oval Faceted Natural Cut Stone for Jewelry Weight - 1.11 Ct Size - 7x6x5 mm
Spinel
$399
H 0.16 in W 0.2 in L 0.28 in
1.06 Carats Tanzania Blue Spinel Oval Faceted Natural Cut Stone for Jewelry
Located in Jaipur, RJ
Tanzania Blue Spinel Oval Faceted Natural Cut Stone for Jewelry Weight - 1.06 Ct Size - 7x5x4 mm
Spinel
$349
H 0.12 in W 0.16 in L 0.28 in
0.78 Carats Tanzania Blue Spinel Oval Faceted Natural Cut Stone for Jewelry
Located in Jaipur, RJ
Tanzania Blue Spinel Oval Faceted Natural Cut Stone for Jewelry Weight - 0.78 Ct Size - 7x4x3 mm
Spinel
$799
H 0.16 in W 0.24 in L 0.32 in
1.64 Carats Tanzania Blue Spinel Oval Faceted Natural Gemstone for Fine Jewelry
Located in Jaipur, RJ
Tanzania Blue Spinel Oval Faceted Natural Cut Stone for Fine Jewelry Weight - 1.64 Ct Size - 8x6x4
Spinel
$768Sale Price|20% Off
W 0.3 in D 0.19 in L 0.34 in
2.40 Carat Natural Loose Hot Pink Spinel Stone Cushion Cut Tanzanian Gemstone
Located in Bangkok, TH
or collector’s pieces. This 2.40-carat Tanzanian Hot Pink Spinel combines brilliant color, expert
Spinel
$600
W 0.23 in D 0.16 in L 0.34 in
1.35 Carat Natural Loose Purple Spinel Pear Shape Gemstone From Tanzania
Located in Peshawar, PK
: Non Origin: Tanzania Shape : Pear Certificate: On Demand Spinel is a captivating gemstone prized for
Spinel
10.47 Carat Grey & Blue Spinel Tanzania Faceted Fancy Cut stone Natural Gemstone
Located in Jaipur, RJ
10.47 Carat Grey & Blue Spinel Tanzania Fancy Faceted Cut stone Natural Gemstone Weight - 10.47
Spinel
0.93 Carats Tanzania Blue Spinel Heart Faceted Natural Cut Stone for Jewelry
Located in Jaipur, RJ
Tanzania Blue Spinel Heart Faceted Natural Cut Stone for Jewelry Weight - 0.93 Ct Size - 6x3 mm
Spinel
$584Sale Price|20% Off
W 0.16 in D 0.25 in L 0.3 in
1.36 Carat Natural Loose Hot Pink Spinel Stone Oval Cut Tanzanian Gemstone
Located in Bangkok, TH
Weight 1.36 carat Dimensions 7.6x3.82x6.1mm Treatment None Origin Tanzanian Clarity VVS Shape
Spinel
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.