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-BLUE Gemstone Type: Spinel Gemstone size: 9.65x7.74x4.96 mm Cut Grade: Excellent Cla...
Spinel
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 Gemstone Type: Spinel Gemstone size: 9.00x6.84x5.53 mm Cut Grade: Excellent Clarit...
Spinel
Natural Greyish-BLUE Spinel loose gemstone 2.34 ct., High quality, Round cut.
By GRALJEWELRY
Located in Dublin, D
Natural Greyish-BLUE Spinel Loose gemstone GFCO Laboratory certified Gemstone Color: Greyish-BLUE Gemstone Type: Spinel Gemstone size: 7.77x7.75x5.57 mm Cut Grade: Excellent Clarity...
Spinel
Certified 2.52 Carat Natural Vietnamese Blue Spinel Loose Gemstone
Located in Peshawar, PK
Loose Blue Spinel Weight: 2.52 Carat Dimension: 9.97 x 7.60 x 3.91 Mm Colour: Blue Cut: Cushion Origin: Vietnam Treatment: Non Certificate: Available Faceted blue spinel from ...
Spinel
Natural blue Spinel loose gemstone 2.07 ct. Certificate, Cushion Origin Tanzania
By GRALJEWELRY
Located in Dublin, D
Natural Blue Spinel gemstone from Tanzania GFCO Laboratory certified Gemstone Color: greyish-Blue Gemstone Type: Spinel Gemstone size: 7.36x6.76x5.11 mm Cut Grade: Excellent Clarity...
Spinel
Natural Grey-blue Spinel loose gemstone 2.09 ct., High quality, Octagon cut
By GRALJEWELRY
Located in Dublin, D
Natural Grey-blue Spinel gemstone from Tanzania GFCO Laboratory certified Gemstone Color: Grey-Blue Gemstone Type: Spinel Gemstone size: 7.37x7.21x5.00 mm Cut Grade: Excellent Clari...
Spinel
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-Grey Gemstone Type: Spinel Gemstone size: 7.17x7.06x4.90 mm Cut Grade: Excellent Clari...
Spinel
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-Blue Gemstone Type: Spinel Gemstone size: 8.42x7.22x4.52 mm Cut Grade: Excellent Clari...
Spinel
Natural Greyish-Blue Spinel loose gemstone 2.09 ct., High quality, Pear cut
By GRALJEWELRY
Located in Dublin, D
Natural Greyish-Blue Spinel gemstone from Tanzania GFCO Laboratory certified Gemstone Color: Greyish-Blue Gemstone Type: Spinel Gemstone size: 10.60x7.51x4.37 mm Cut Grade: Excellen...
Spinel
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-Grey Gemstone Type: Spinel Gemstone size: 7.42x6.28x4.84 mm Cut Grade: Excellent Cla...
Spinel
Spinel Cobalt Blue 3.04Ct natural gemstone, Oval cut, Tanzania, GFCO certified
By GRALJEWELRY
Located in Dublin, D
Natural Cobalt Blue Spinel Loose gemstone Origin Tanzania! Laboratory certified GFCO Gemstone Color: Blue Gemstone Type: Spinel Gemstone size: 10.10x7.53x5.51mm Gemstone Shape: Ova...
Spinel
Spinel Blue natural gemstone 2.89Ct, Octagon cut, Origin Tanzania, GFCO
By GRALJEWELRY
Located in Dublin, D
Natural Blue Spinel loose gemstone from Tanzania GFCO Laboratory certified Gemstone Color: Blue Gemstone Type: Spinel Gemstone size: 8.90x7.03x5.13 mm Cut Grade: Excellent Clarity/G...
Spinel
Spinel Blue 3.53Ct natural gemstone, Cushion cut, Tanzania, Certificate GFCO
By GRALJEWELRY
Located in Dublin, D
Natural Blue Spinel Loose gemstone from Tanzania! GFCO Laboratory certified Gemstone Color: greyish Blue Gemstone Type: Spinel Gemstone size: 9.56x8.14x5.13mm Cut Grade: Very Good C...
Spinel
3.07 Carat Cobalt Blue Mahenge Spinel Oval Cut Loose Gemstone with Bellerophon
By Merkaba
Located in Beverly Hills, CA
A rare, collector level cobalt blue spinel from Mahenge, Tanzania, offered loose and unmounted by Merkaba Jewelry Beverly Hills.
Spinel, 18k Gold, Rose Gold, White Gold, Yellow Gold, Platinum
1.35 Carat Natural Loose Greenish Blue Spinel Gemstone
Located in Peshawar, PK
Faceted Spinel Weight : 1.35 Carat Dimension: 6.8 x 6.5 x 4.0 Mm Origin: Tanzania Colour: Greenish Blue Treatment: Non Certificate: On Customer Demand Spinels is a captivating ...
Spinel, Other
1.25 Carat Natural Loose Teal Blue Spinel Gemstone
Located in Peshawar, PK
Faceted Spinel Weight : 1.25 Carat Dimension: 6.9 x 6.2 x 3.7 Mm Origin: Tanzania Colour: Teal Blue Treatment: Non Certificate: On Customer Demand Spinels is a captivating gems...
Spinel, Other
1.50 Carat Natural Loose Lavender Blue Spinel Gemstone
Located in Peshawar, PK
Faceted Spinel Weight : 1.50 Carat Dimension: 7.9 x 5.7 x 4 Mm Origin: Tanzania Colour: Lavender Blue Treatment: Non Certificate: On Customer Demand Spinels is a captivating gems...
Spinel, Other
1.45 Carat Natural Loose Blue Spinel Cushion Cut Gemstone
Located in Peshawar, PK
Faceted Blue Spinel Weight : 1.45 Carat Dimension: 7.2 x 6.2 x 4.3 Mm Origin: Tanzania Treatment: Non Certificate: On Customer Demand Spinels is a captivating gemstone prized fo...
Spinel, Other
1.30 Carat Natural Loose Blue Spinel Oval Shape Gemstone
Located in Peshawar, PK
Faceted Spinel Weight : 1.30 Carat Dimension: 8.3 x 5.8 x 4 Mm Origin: Tanzania Colour: Blue Treatment: Non Certificate: On Customer Demand Spinels is a captivating gemstone pr...
Spinel, Other
1.25 Carat Natural Loose Blue Spinel Gemstone From Tanzania
Located in Peshawar, PK
Faceted Spinel Weight : 1.25 Carat Dimension: 6.8 x 6.3 x 3.6 Mm Origin: Tanzania Colour: Blue Treatment: Non Certificate: On Customer Demand Spinels is a captivating gemstone ...
Spinel, Other
1.45 Carat Natural Loose Deep Blue Spinel From Tanzania
Located in Peshawar, PK
Faceted Deep Blue Spinel Weight : 1.45 Carat Dimension : 7.4 x 5.6 x 4.2 Mm Colour : Deep Blue Treatment: Non Origin: Tanzania Shape : Oval Certificate: On Demand Spinel is a capt...
Spinel
1.20 Carat Natural Loose Blue Grey Spinel Cushion Cut Gemstone
Located in Peshawar, PK
Faceted Spinel Weight : 1.20 Carat Dimension: 6.2 x 4.6 x 3.7 Mm Origin: Tanzania Colour: Blue Grey Treatment: Non Certificate: On Customer Demand Spinels is a captivating gems...
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 Blue Treatment: Non Certificate: On Customer Demand Spinels is a captivating gemst...
Spinel, Other
$750Sale Price|25% Off
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: Tanzania Treatment: Non Certificate: AIG Certificate Available Shape: Oval For years...
Spinel, Other
2.00 Carat Natural Loose Violet Blue Spinel Cushion Shape Gemstone
Located in Peshawar, PK
Faceted Violet Blue Spinel Weight : 2.00 Carat Dimension: 7.9 x 6.0 x 5.1 Mm Origin: Tanzania Treatment: Non Certificate: On Customer Demand Spinels is a captivating gemstone pri...
Spinel, Other
$595Sale Price|30% Off
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 Treatment: Non Certificate: On Customer Demand Shape: Cushion Spinels is a captiv...
Spinel, Other
$336Sale Price|20% Off
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 Shape Cut Emerald The 1.20 Carat Natural Loose Cobalt Blue Spinel is a captivating...
Spinel
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 Laboratory certified Gemstone Color: Blue Gemstone Type: Spinel Gemstone size: 9.1...
Spinel
Natural Blue-Grey Spinel loose gemstone 3.52 ct. High quality, Cushion, Tanzania
By GRALJEWELRY
Located in Dublin, D
Natural Blue-Grey Spinel loose gemstone 3.52 ct., High quality, Cushion cut, Origin Tanzania.
Spinel
GFCO Certified 2.17 Carat Natural Loose Blue Cobalt Spinel From Tanzania
Located in Peshawar, PK
Faceted Cobalt Spinel Weight : 2.17 Carat Dimension: 7.78 X 7.42 x 4.48 Mm Colour: Blue Origin: Tanzania Treatment: Non Certificate: GFCO Certificate Available Shape: Octagon...
Spinel
Certified 1.79 Carat Natural Loose Violent Blue Spinel Cushion Shape Gemstone
Located in Peshawar, PK
Faceted Violent Blue Spinel Weight : 1.79 Carat Dimension : 7.82 x 5.97 x 4.91 Mm Colour : Violent Blue Treatment: Non Origin: Tanzania Shape : Cushion Certificate: Certificate Av...
Spinel
$970Sale Price / set|30% Off
Darkish Blue Natural Spinel Perfect Pair 3.76 Carat Cushion Cut Loose Gemstones
Located in Peshawar, PK
Natural Darkish Blue Spinel Pair Cushion Cut Well Matched Perfect Loose Gemstones Pair for Custom Fine Jewelry Design Authentic Earth Mined Red Crystals Precision Faceted with High ...
Spinel
$734Sale Price|30% Off
2.12 Carat Violet Blue Natural Spinel, Emerald Cut Loose Gemstone for Jewelry
Located in Peshawar, PK
Violet Blue Natural Spinel Octagon Emerald Cut Loose Gemstone Showcasing Vibrant Color, Fine Clarity and Outstanding Brilliance for Bespoke Jewelry Creations
Spinel
$734Sale Price|30% Off
2.07 Carat Violet Blue Natural Spinel, Oval Cut Loose Gemstone for Jewelry
Located in Peshawar, PK
Violet Blue Natural Spinel Oval Cut Loose Gemstone Showcasing Vibrant Color, Fine Clarity and Outstanding Brilliance for Bespoke Jewelry Creations
Spinel
$734Sale Price|30% Off
2.20 Carat Violet Blue Natural Spinel, Emerald Cut Loose Gemstone for Jewelry
Located in Peshawar, PK
Violetish Blue Natural Spinel Emerald Cut Loose Gemstone Showcasing Vibrant Color, Fine Clarity and Outstanding Brilliance for Bespoke Jewelry Creations
Spinel
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-Blue Gemstone Type: Spinel Gemstone size: 8.61x7.79x4.67mm Cut Grade: Excellent Clarit...
Spinel
$1,047Sale Price / set|30% Off
Grayish Blue Spinel Pair 3.75 Ct Cushion Cut Natural Loose Gemstones — Earrings
Located in Peshawar, PK
Natural Grayish Blue Spinel Pair 3.75 Ct – Cushion Cut Matched Loose Gemstones for Earrings, Certified Untreated Spinel Stones, Fine Jewelry Making Supplies!!
Spinel
$1,760Sale Price|20% Off
3.10 Carat Natural Loose Light Blue Spinel Stone Cushion Cut Burmese Gemstone
Located in Bangkok, TH
Weight 3.10 carat Dimensions 8.4x8.1x5.5mm Treatment None Origin Burma Clarity Eye Clean Shape Cut Cushion NA This stunning 3.10 carat natural Spinel showcases a delicate and lum...
Spinel
4.15 Carat Grayish Blue Spinel Round Loose Gemstone by Merkaba Beverly Hills
By Merkaba
Located in Beverly Hills, CA
Rare and exclusive, this 4.15 carat grayish blue spinel is offered loose for devoted gemstone collectors and bespoke fine jewelry creation.
Spinel, Gold, 18k Gold, Rose Gold, Yellow Gold, Platinum
IGI 1.45ct Greenish Blue Spinel, bright Teal blue spinel (7.7x6.1x3.7mm)
Located in Singapore, SG
Kindly note that the stated price for this item is fixed and non-negotiable. We appreciate your understanding and respect for our pricing decision. Gemstone Details: Gem Type: Natu...
Spinel, 18k Gold, White Gold
Spinel 2.46 cts. Beautiful Blue color Spinel from Sri lanka.
Located in Brooklyn, NY
This pretty BLUE spinel Cushion cut , weighs 2.46 carats and would make a beautiful 3-stone ring, though its shape lends itself to a variety of possibilities! It measures 8.60 x 7....
Spinel
Spinel 2.88 cts. Beautiful Blue color Spinel from Sri lanka.
Located in Brooklyn, NY
This pretty BLUE spinel Cushion cut , weighs 3.48 carats and would make a beautiful 3-stone ring, though its shape lends itself to a variety of possibilities! It measures 9.20 x 7....
Spinel
Spinel 3.48 cts. Beautiful Blue color Change Spinel from Sri lanka.
Located in Brooklyn, NY
This pretty BLUE Color change spinel Cushion cut , weighs 3.48 carats and would make a beautiful 3-stone ring, though its shape lends itself to a variety of possibilities! It measur...
Spinel
Natural Cobalt Blue Spinel Gemstone, Top Grade Spinel From Tanzania 3.14 CTs
Located in Peshawar, PK
Color : Cobalt Blue Clarity : SI Treatment :Natural Origin : Tanzania Hardness : 7.5-8 Family : Oxide This stunning **Cobalt Blue Spinel gemstone** is a rare and captivating treasu...
Spinel
$1,280Sale Price|20% Off
Lotus Certified 3.72 Carat Blue Spinel
Located in Hua Hin, TH
3.72 Carat Blue Spinel Shape: Antique Cushion Faceted Dimensions: 9.63 x 7.09 x 6.51 mm Weight: 3.72 Carat No Heat or treatment Lotus report: 4093-7832
Spinel
$476Sale Price|20% Off
1.92 Carat Blue Spinel Lotus Certified
Located in Hua Hin, TH
1.92 Carat Blue Spinel from Sri Lanka Shape: Antique. Cushion Cutting Style: Faceted Brilliant Modified Step Dimensions: 8.20 x 6.62 x 4.13 mm Color: Blue with medium saturation and ...
Spinel
$176Sale Price|20% Off
1.05 Carat Natural Blue Ceylon Spinel
Located in Hua Hin, TH
1.05 Carat Natural Blue Spinel from Sri Lanka (Ceylon) Dimension: 6.43 x 5.17 x 3.51 mm Weight: 1.05 Carat Shape: Octagon Cut No Heat GIL Certified Report No: STO2023010552114
Spinel
Sparkling Natural Blue Spinel Gem Cushion Cut
Located in רמת גן, IL
A beautiful shape gem with a dazzling natural spinel. The jewelry is made of with a high quality polish. It comes with a fancy jewelry box. 1 spinel main stone cut: cushion color: ...
Spinel
GIA Certified Natural Green-Blue Spinel 3.96 carat
Located in Brooklyn, NY
This unheated Green - blue spinel has exceptional brilliance and luster! Accompanied by Gemological Institute of America Report #5232945985, this gem weighs 3.96 carats and measures...
Spinel
$971Sale Price|35% Off
1.42 Carat Blue-Violet Spinel Lotus Certified
Located in Hua Hin, TH
1.42 Carat Blue-Violet Spinel from Sri Lanka Shape: Antique. Cushion Cutting Style: Faceted Brilliant Modified Step Dimensions: 7.09 x 6.47 x 3.71 mm Color: Blue-Violet low saturati...
Spinel
$472Sale Price|20% Off
1.98 Carat Natural Blue Cobalt Spinel from Burma
Located in Hua Hin, TH
1.98 Carat Natural Blue Cobalt Spinel from Burma Dimension: 7.68 x 6.35 x 5.28 mm Shape: Oval Cut Weight: 1.98 Carat No Heat GIL Certified Report No: St02022102151324
Spinel
$8,280Sale Price|40% Off
6.08 Carat Cobalt Blue Spinel from Tanzania - AIG Certified
Located in Brisbane City, AU
This 6.08 carat cobalt-blue spinel displays the vivid, highly saturated blue colour that has made cobalt-bearing spinel one of the most sought-after gemstones among collectors and fi...
Spinel
Natural Blue Green Spinel Gemstone 6.49 carats / JupiterGem
Located in Los Angeles, CA
This stunning natural blue-green spinel, weighing 6.49 carats, showcases a captivating mix of dark blue and green tones. Carat Weight: 6.49 carats, offering a substantial and impres...
Spinel
GIA Certified Natural Rare Color Blue Spinel 5.23 carat
Located in Brooklyn, NY
This unheated Blue color spinel has exceptional brilliance and luster! this gem weighs 5.23 carats and measures 10.33 x 9.65 x 6.64 millimeters. It is a nicely cut Cushion shape an...
Spinel
GIA Certified Natural Color change Blue Spinel 2.46 carat
Located in Brooklyn, NY
This unheated Blue color change spinel has exceptional brilliance and luster! Accompanied by Gemological Institute of America Report #1236945980, this gem weighs 2.46 carats and mea...
Spinel
$800Sale Price|20% Off
Blue spinel certified will come with a certificate 2.40ct
Located in Jupiter, FL
LOVELY BLUE SPINEL, WILL COME WITH A CERTIFICATE. NATURAL GEMSTONE(S): SPINEL Clarity/Color: Slightly Included/Blue Cut: Rectangular 9.4mm x 7.5mm Carat: 2.40ct Treatment: none WH...
Spinel
IGI certified color changed 2.09ct Blue Spinel (7.56x6.3x5.84mm)
Located in Singapore, SG
Kindly note that the stated price for this item is fixed and non-negotiable. We appreciate your understanding and respect for our pricing decision. Gemstone Details: Gem Type: Natu...
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.