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Loose Blue Sapphire Cushion

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GRA Certified 2.06ct Green Blue Sapphire Loose Cushion Cut Gem
By Gems and Jewels UK
Located in Birmingham, GB
GRA Certified 2.06ct Green Blue Sapphire Loose Cushion Cut Gem 9.3x6.4mm GRA Certified Deep Green
Category

20th Century Loose Gemstones

Materials

Blue Sapphire, Sapphire

GRA Certified 2.06ct Green Blue Sapphire Loose Cushion Cut Gem
GRA Certified 2.06ct Green Blue Sapphire Loose Cushion Cut Gem
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H 0.15 in W 0.37 in D 0.26 in
Cornflower Blue Sapphire Cushion Natural Unheated, Loose Gemstone
Located in South Melbourne, AU
blue sapphire is an amazing example. A natural certified unheated cornflower blue sapphire lavishing an
Category

21st Century and Contemporary Sri Lankan Modern Loose Gemstones

Materials

Sapphire

3.06 Carat Royal Blue Natural Sapphire Loose Stone Cushion(Customization Option)
Located in London, GB
3.06 Carat heated royal blue natural sapphire loose stone cushion (customization option available
Category

2010s Loose Gemstones

Materials

Blue Sapphire

Untreated Cushion Cut Blue Sapphire 0.63ct IGI Certified Loose Gem
By Gems and Jewels UK
Located in Birmingham, GB
Untreated Cushion Cut Blue Sapphire 0.63ct IGI Certified Loose Gem 5.4x4.3mm Natural Untreated
Category

20th Century Loose Gemstones

Materials

Blue Sapphire

Unheated 13.12 Carat Ceylon Blue Sapphire, Loose Gemstone, Certified Cushion
By Emeralds Maravellous
Located in US
Unheated 13.12 Carat Ceylon Blue Sapphire, Loose Gemstone, Certified Certified 13.12 Carats Blue
Category

21st Century and Contemporary Sri Lankan Contemporary Loose Gemstones

Materials

Blue Sapphire

Unique 0.71ct Natural Green Blue Sapphire Cushion Rare Loose Gem 6.4x5mm VS
By Gems and Jewels UK
Located in Birmingham, GB
Unique 0.71ct Natural Green Blue Sapphire Cushion Rare Loose Gem 6.4x5mm VS Unique Natural Green
Category

20th Century Loose Gemstones

Materials

Blue Sapphire, Sapphire

2.72 Carat Cushion Cut Natural Blue Sapphire Loose Gemstone from Sri Lanka
Located in Horana, LK
A natural sapphire flaunting hues of clear blue skies tinged with tones of vivid blue in the
Category

2010s Sri Lankan Loose Gemstones

Materials

Sapphire, Blue Sapphire

5.20 Carat Natural Cushion Cut No Heat Loose Violet Blue Sapphire Gemstone
Located in Stamford, CT
1920's AGL certified natural old style cushion cut sapphire. Large surface area with excellent
Category

21st Century and Contemporary Loose Gemstones

Materials

Sapphire, Blue Sapphire, Purple Sapphire

0.87ct Deep Blue Sapphire Square Cushion Cut IGI Certified Rare Loose Gemstone
By Gems and Jewels UK
Located in Birmingham, GB
0.87ct Deep Blue Sapphire Square Cushion Cut IGI Certified Rare Loose Gemstone Natural Deep Blue
Category

20th Century Loose Gemstones

Materials

Blue Sapphire

Deep Cornflower Blue Sapphire 3.25 Ct Cushion Unheated, Loose Gemstone
Located in South Melbourne, AU
A deep cornflower blue sapphire of incredible brightness and vitality. Masterfully cut by our
Category

21st Century and Contemporary Sri Lankan Modern Loose Gemstones

Materials

Sapphire

Cornflower Blue Sapphire 1.84 Ct Cushion Cut Natural Unheated, Loose Gemstone
Located in South Melbourne, AU
Irresistible Ceylonese cornflower blue sapphire expertly cushion cut to just under 2 carat
Category

21st Century and Contemporary Sri Lankan Modern Loose Gemstones

Materials

Sapphire

Fine 1.01ct Light Blue Ceylon Sapphire Cushion Cut Loose Rare Gem VS
By Gems and Jewels UK
Located in Birmingham, GB
Fine 1.01ct Light Blue Ceylon Sapphire Cushion Cut Loose Rare Gem 7.3x5mm VS Light Blue Ceylon
Category

21st Century and Contemporary Loose Gemstones

Materials

Sapphire

36.21 Carat Cushion Vivid Blue Sapphire
Located in New York, NY
A CDC certified cushion, vivid blue, natural sapphire with basic heat treatment. We can help you
Category

2010s Loose Gemstones

Materials

Blue Sapphire

1.71ct Cushion Light Blue Sapphire Unheated
Located in Toronto, Ontario
Description: Gem Type: Sapphire Number of Stones: 1 Weight: 1.71 cts Measurements: 7.00x6.50x3.60
Category

2010s Sri Lankan Loose Gemstones

Materials

Blue Sapphire, Sapphire

1.71ct Cushion Light Blue Sapphire Unheated
1.71ct Cushion Light Blue Sapphire Unheated
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W 0.28 in D 0.15 in L 0.26 in
1.85ct Cushion Blue Sapphire from Nigeria
Located in Toronto, Ontario
Description: Gem Type: Sapphire Number of Stones: 1 Weight: 1.85 cts Measurements: 8.06 x 6.53 x
Category

2010s Nigerian Loose Gemstones

Materials

Blue Sapphire

1.85ct Cushion Blue Sapphire from Nigeria
1.85ct Cushion Blue Sapphire from Nigeria
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W 0.32 in D 0.14 in L 0.26 in
1.4ct Cushion Blue Sapphire from Nigeria
Located in Toronto, Ontario
: Blue Tone: 6-7 Medium Dark - Dark Saturation: 4 Moderate Strong Species: Corundum Variety: Sapphire
Category

2010s Nigerian Loose Gemstones

Materials

Blue Sapphire

1.4ct Cushion Blue Sapphire from Nigeria
1.4ct Cushion Blue Sapphire from Nigeria
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W 0.28 in D 0.15 in L 0.23 in
1.59ct Cushion Blue Sapphire from Nigeria
Located in Toronto, Ontario
Description: Gem Type: Sapphire Number of Stones: 1 Weight: 1.59 cts Measurements: 7.56 x 5.96 x
Category

2010s Nigerian Loose Gemstones

Materials

Blue Sapphire

1.59ct Cushion Blue Sapphire from Nigeria
1.59ct Cushion Blue Sapphire from Nigeria
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W 0.3 in D 0.15 in L 0.24 in
1.35ct Cushion Blue Sapphire from Nigeria
Located in Toronto, Ontario
Description: Gem Type: Sapphire Number of Stones: 1 Weight: 1.35 cts Measurements: 7.28 x 5.81 x
Category

2010s Nigerian Loose Gemstones

Materials

Blue Sapphire

1.35ct Cushion Blue Sapphire from Nigeria
1.35ct Cushion Blue Sapphire from Nigeria
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W 0.29 in D 0.14 in L 0.23 in
Cushion-Cut Blue Sapphire Cts 1.08
Located in Hong Kong, HK
priceless stone with profound meaning and significance, the cushion-cut blue sapphire is recognized for its
Category

2010s Hong Kong Contemporary Loose Gemstones

Materials

Blue Sapphire

1.65 Carat Natural Loose Blue Sapphire Ring Gem
Located in Peshawar, PK
: Cushion Color: Blue Treatment: Non Certificate; On Demand Blue sapphire, with its mesmerizing deep blue
Category

21st Century and Contemporary Malagasy Baroque Loose Gemstones

Materials

Blue Sapphire, Sapphire

1.65 Carat Natural Loose Blue Sapphire Ring Gem
1.65 Carat Natural Loose Blue Sapphire Ring Gem
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W 0.25 in D 0.15 in L 0.28 in
Certified Cushion Cut Unheated Blue Sapphire - 1.69ct
Located in Antwerpen, BE
Nice stone showcasing a Light Blue color with good saturation and hue. This Sapphire was not
Category

2010s Unknown Modern Loose Gemstones

Materials

Sapphire, Blue Sapphire

Certified Cushion Cut Unheated Blue Sapphire - 1.69ct
Certified Cushion Cut Unheated Blue Sapphire - 1.69ct
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W 0.32 in D 0.14 in L 0.24 in
Certified Cushion Cut Intense Blue Sapphire - 2.29ct
Located in Antwerpen, BE
Beautiful stone showcasing a Intense Blue color with very good saturation and hue. The stone is
Category

2010s Unknown Modern Loose Gemstones

Materials

Sapphire, Blue Sapphire

Certified Cushion Cut Intense Blue Sapphire - 2.29ct
Certified Cushion Cut Intense Blue Sapphire - 2.29ct
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W 0.33 in D 0.18 in L 0.28 in
4.82carat Natural Blue Sapphire loose Stone oval shape Blue Sapphire
Located in Delhi, DL
Certified no heat no treatment Natural oval shape 4.82carat Blue sapphire Carat: 4.82 cts Colour
Category

21st Century and Contemporary Sri Lankan Art Deco Loose Gemstones

Materials

Blue Sapphire

GRS Certified 12.68 Carat Blue Sapphire Untreated Loose Gem
Located in Taipei, TW
A Burmese blue sapphire of 12 carat size is a rare and stunning gemstone that has a deep and vivid
Category

21st Century and Contemporary Loose Gemstones

Materials

Blue Sapphire

GRS Certified 12.68 Carat Blue Sapphire Untreated Loose Gem
GRS Certified 12.68 Carat Blue Sapphire Untreated Loose Gem
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W 0.47 in D 0.38 in L 0.52 in
Unheated Sapphire Ring Gem 6 Carat No Heat Ceylon Cushion Loose Gemstone
By Merkaba
Located in Beverly Hills, CA
Supreme collection-quality 6.50 carat unheated Ceylon (Sri Lanka) Sapphire cushion, offered
Category

21st Century and Contemporary Sri Lankan Contemporary Loose Gemstones

Materials

Sapphire, Blue Sapphire

Vivid Cornflower Blue Sapphire 3.03ct Cushion GIA Certified
Located in Toronto, Ontario
What a Beautiful 3.03 Cornflower Blue Sapphire Description: One Loose Blue Sapphire Report
Category

2010s Malagasy Loose Gemstones

Materials

Blue Sapphire, Sapphire

Vivid Cornflower Blue Sapphire 3.03ct Cushion GIA Certified
Vivid Cornflower Blue Sapphire 3.03ct Cushion GIA Certified
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W 0.27 in D 0.23 in L 0.34 in
4.36 Carat Cushion Blue Sapphire GIA Certified Unheated
Located in Toronto, Ontario
: Transparent Color: Blue RESULTS Species: Natural Corundum Variety: Natural Sapphire Geographic Origin
Category

2010s Unknown Loose Gemstones

Materials

Blue Sapphire, Sapphire

4.36 Carat Cushion Blue Sapphire GIA Certified Unheated
4.36 Carat Cushion Blue Sapphire GIA Certified Unheated
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W 0.34 in D 0.26 in L 0.33 in
Indigo Blue Sapphire 0.75ct Natural Australian Cushion Cut Loose Gem
Located in Birmingham, GB
Indigo Blue Sapphire 0.75ct Natural Australian Cushion Cut Loose Gem 5.8x4.5mm Natural Australian
Category

21st Century and Contemporary British Loose Gemstones

Fine Royal Blue Sapphire 0.68ct Cushion Cut Loose Rare Gem
Located in Birmingham, GB
Fine Royal Blue Sapphire 0.68ct Cushion Cut Loose Rare Gem 5.2x4.3mm Fine Royal Blue Australian
Category

21st Century and Contemporary British Loose Gemstones

2 Carat Cushion Greenish Blue Sapphire GIA Unheated
Located in San Francisco, CA
This Cushion shape 2.06-carat Natural Greenish Blue color sapphire GIA certified has been hand
Category

21st Century and Contemporary Loose Gemstones

Materials

Blue Sapphire, Green Sapphire

2.25ct Cushion Blue Sapphire GIA Certified Madagascar Unheated
Located in Toronto, Ontario
Cut Transparency: Transparent Color: Blue RESULTS Species: Natural Corundum Variety: Natural Sapphire
Category

2010s Malagasy Loose Gemstones

Materials

Blue Sapphire

2.25ct Cushion Blue Sapphire GIA Certified Madagascar Unheated
2.25ct Cushion Blue Sapphire GIA Certified Madagascar Unheated
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W 0.33 in D 0.18 in L 0.26 in
3 Carat Cushion Greenish Blue Sapphire GIA Unheated
Located in San Francisco, CA
This Cushion shape 3.01-carat Natural Greenish Blue color sapphire GIA certified has been hand
Category

21st Century and Contemporary Loose Gemstones

Materials

Blue Sapphire

0.94ct Cushion Blue Sapphire from East Africa, Unheated
Located in Toronto, Ontario
Description: Gem Type: Sapphire Number of Stones: 1 Weight: 0.94 cts Measurements: 5.68 x 5.35 x
Category

2010s Unknown Loose Gemstones

Materials

Blue Sapphire

0.94ct Cushion Blue Sapphire from East Africa, Unheated
0.94ct Cushion Blue Sapphire from East Africa, Unheated
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W 0.23 in D 0.14 in L 0.22 in
1.69 Ct Bright Blue Sapphire Cushion GIA Certified Unheated
Located in Toronto, Ontario
Description: One Loose Blue Sapphire Report Number: 6193936752 Weight: 1.69 cts
Category

2010s Loose Gemstones

Materials

Blue Sapphire, Sapphire

1.69 Ct Bright Blue Sapphire Cushion GIA Certified Unheated
1.69 Ct Bright Blue Sapphire Cushion GIA Certified Unheated
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W 0.28 in D 0.19 in L 0.23 in
0.89carat Cushion Blue Sapphire from East Africa, Unheated
Located in Toronto, Ontario
Description: Gem Type: Sapphire Number of Stones: 1 Weight: 0.89 cts Measurements: 5.88 x 5.29 x
Category

2010s African Loose Gemstones

Materials

Blue Sapphire

0.89carat Cushion Blue Sapphire from East Africa, Unheated
0.89carat Cushion Blue Sapphire from East Africa, Unheated
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W 0.24 in D 0.13 in L 0.21 in
1.46ct Cushion Blue Sapphire GIA Certified Sri Lanka
Located in Toronto, Ontario
: Step Cut Transparency: Transparent Color: Blue RESULTS Species: Natural Corundum Variety: Sapphire
Category

2010s Sri Lankan Loose Gemstones

Materials

Blue Sapphire

1.46ct Cushion Blue Sapphire GIA Certified Sri Lanka
1.46ct Cushion Blue Sapphire GIA Certified Sri Lanka
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W 0.27 in D 0.18 in L 0.22 in
2.30 Carat Unheated Cornflower Blue Natural Sapphire Loose Gemstone from Ceylon
Located in Horana, LK
This magnificent blue sapphire by KNS Gems is available for purchase as a loose gemstone. The photos
Category

2010s Sri Lankan Loose Gemstones

Materials

Sapphire, Blue Sapphire

1.50 Carat Unheated Cornflower Blue Natural Sapphire Loose Gemstone from Ceylon
Located in Horana, LK
Ceylon 1.50 Carat. This magnificent blue sapphire by KNS Gems is available for purchase as a loose
Category

2010s Sri Lankan Loose Gemstones

Materials

Sapphire, Blue Sapphire

8.96 Ct Blue Sapphire Cushion IGI Certified Ethiopian, Unheated
Located in Toronto, Ontario
Description: One Loose Sapphire Report Number: GT13354505 Weight: 8.96 cts Measurements
Category

2010s Ethiopian Loose Gemstones

Materials

Blue Sapphire

1 1/3 Carat Cushion Blue Sapphire GIA
Located in San Francisco, CA
This Cushion shape 1.28-carat Natural Blue color sapphire GIA certified has been hand-selected by
Category

21st Century and Contemporary Sri Lankan Loose Gemstones

Materials

Blue Sapphire

3.00 Carat Natural Loose Parti Sapphire Cushion Gem For Engagement Ring
Located in Peshawar, PK
Loose Sapphire Weight: 3.00 Carats Dimension: 9.3 x 7.6 x 4.1 Mm Colour: Blue And Green Origin
Category

21st Century and Contemporary Central African Arts and Crafts Loose Gems...

Materials

Sapphire

Deep Blue Sapphire, Certified Gem, 4, 27 Ct., Loose Gemstone
Located in Kirschweiler, DE
We are delighted to be able to offer for sale, this 4,27 ct. blue Sapphire from our exclusive
Category

21st Century and Contemporary German Contemporary Loose Gemstones

Materials

Blue Sapphire

1.37ct Cushion Blue Sapphire from Nigeria
Located in Toronto, Ontario
: Blue Hue: Blue Tone: 6-7 Medium Dark - Dark Saturation: 5 Strong Species: Corundum Variety: Sapphire
Category

2010s Nigerian Loose Gemstones

Materials

Blue Sapphire

1.37ct Cushion Blue Sapphire from Nigeria
1.37ct Cushion Blue Sapphire from Nigeria
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W 0.29 in D 0.14 in L 0.24 in
6.02Ct Ceylon Cushion Sapphire
Located in New York, NY
A velvety blue, resembling royal blue Sri Lankan cushion sapphire. This stone is eye clean and has
Category

2010s Sri Lankan Loose Gemstones

Materials

Sapphire, Blue Sapphire

6.02Ct Ceylon Cushion Sapphire
6.02Ct Ceylon Cushion Sapphire
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W 9.5 in L 10.7 in
1 2/5 Carat Cushion Greenish Blue Sapphire GIA
Located in San Francisco, CA
This Cushion shape 1.41-carat Natural Greenish Blue color sapphire GIA certified has been hand
Category

21st Century and Contemporary Tanzanian Loose Gemstones

Materials

Blue Sapphire

2 1/4 Carat Cushion Blue Sapphire GIA Unheated
Located in San Francisco, CA
This Cushion shape 2.23-carat Natural Blue color sapphire GIA certified has been hand-selected by
Category

21st Century and Contemporary Sri Lankan Loose Gemstones

Materials

Blue Sapphire

Deep Teal Blue Sapphire 1.55 Carat Cushion Cut Rare Natural Gem
By Gems and Jewels UK
Located in Birmingham, GB
Fine Deep Teal Blue Sapphire Gemstone. Natural sapphire with a stunning deep teal blue colour
Category

21st Century and Contemporary Loose Gemstones

Materials

Sapphire, Blue Sapphire

1.22ct Cushion Violetish Blue Sapphire GIA Certified Sri Lanka Unheated
Located in Toronto, Ontario
This is a stunning GIA Certified Sapphire The GIA report reads as follows: GIA Report Number
Category

2010s Sri Lankan Loose Gemstones

Materials

Blue Sapphire, Sapphire

1.01ct Fine Blue Sapphire GRA Certified Cushion Cut Rare Loose Gem 6.4x5.3mm
Located in Birmingham, GB
1.01ct Fine Blue Sapphire GRA Certified Cushion Cut Rare Loose Gem 6.4x5.3mm GRA Certified Deep
Category

21st Century and Contemporary British Loose Gemstones

2.38ct Cushion Blue Sapphire GIA Certified Madagascar
Located in Toronto, Ontario
Cut Transparency: Transparent Color: Blue RESULTS Species: Natural Corundum Variety: Sapphire
Category

2010s Malagasy Loose Gemstones

Materials

Blue Sapphire

2.38ct Cushion Blue Sapphire GIA Certified Madagascar
2.38ct Cushion Blue Sapphire GIA Certified Madagascar
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W 0.33 in D 0.18 in L 0.25 in
5.19 Carat Cushion Violetish Blue Sapphire GIA Certified Sri Lanka
Located in Toronto, Ontario
: Transparency: Transparent Color: Violetish Blue RESULTS Species: Natural Corundum Variety: Sapphire
Category

2010s Sri Lankan Loose Gemstones

Materials

Blue Sapphire

Blue Tourmaline Ring Gem 2.75 Carat Cushion Unmounted Loose Gemstone
By Merkaba
Located in Beverly Hills, CA
Splendid 2.75 carat "Lagoon" Blue Tourmaline cushion loose gemstone, offered unmounted to a fine
Category

21st Century and Contemporary Nigerian Contemporary Loose Gemstones

Materials

Tourmaline

2.14ct Cushion Blue Sapphire from Sri Lanka
Located in Toronto, Ontario
: Blue Hue: Blue Tone: 5 Medium Saturation: 4 Moderately Strong Species: Corundum Variety: Sapphire
Category

2010s Sri Lankan Loose Gemstones

Materials

Blue Sapphire

2.14ct Cushion Blue Sapphire from Sri Lanka
2.14ct Cushion Blue Sapphire from Sri Lanka
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W 0.4 in D 0.14 in L 0.23 in
1.51ct Cushion Blue Sapphire from Sri Lanka
Located in Toronto, Ontario
Description: Gem Type: Sapphire Number of Stones: 1 Weight: 1.51 cts Measurements: 7.39 x 5.24 x
Category

2010s Sri Lankan Loose Gemstones

Materials

Blue Sapphire

1.51ct Cushion Blue Sapphire from Sri Lanka
1.51ct Cushion Blue Sapphire from Sri Lanka
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W 0.3 in D 0.18 in L 0.21 in
2ct Cushion Blue Sapphire from Sri Lanka
Located in Toronto, Ontario
Description: Gem Type: Sapphire Number of Stones: 1 Weight: 2 cts Measurements: 7.20 x 6.34 x
Category

2010s Sri Lankan Loose Gemstones

Materials

Blue Sapphire

2ct Cushion Blue Sapphire from Sri Lanka
2ct Cushion Blue Sapphire from Sri Lanka
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W 0.29 in D 0.18 in L 0.25 in
1.63 Ct Cushion Blue Sapphire IGI Certified
Located in Toronto, Ontario
Description: One Loose Blue Sapphire Report Number: GT13300607 Weight: 1.63 cts Measurements
Category

2010s Sri Lankan Loose Gemstones

Materials

Blue Sapphire

1.63 Ct Cushion Blue Sapphire IGI Certified
1.63 Ct Cushion Blue Sapphire IGI Certified
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W 0.26 in D 0.14 in L 0.22 in
GIA Certified 1.12ct Parti Colour Australian Sapphire Blue Untreated Cushion Cut
By Gems and Jewels UK
Located in Birmingham, GB
. The sapphire also has an excellent cushion cut and ideal polish to show great shine and colour. As
Category

21st Century and Contemporary Loose Gemstones

Materials

Sapphire, Blue Sapphire, Yellow Sapphire, Green Sapphire

1.52 ct Cushion Blue Sapphire IGI Certified Unheated
Located in Toronto, Ontario
Description: One Loose Blue Sapphire Report Number: GT13300614 Weight: 1.52 cts Measurements
Category

2010s Loose Gemstones

Materials

Blue Sapphire

1.52 ct Cushion Blue Sapphire IGI Certified Unheated
1.52 ct Cushion Blue Sapphire IGI Certified Unheated
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W 0.29 in D 0.17 in L 0.21 in
2.04ct Cushion Blue Sapphire GIA Certified Sri Lanka
Located in Toronto, Ontario
: Sapphire Geographic Origin: Sri Lanka Treatment: Heated Item Description: One loose stone Weight: 2.04
Category

2010s Sri Lankan Loose Gemstones

Materials

Blue Sapphire

2.04ct Cushion Blue Sapphire GIA Certified Sri Lanka
2.04ct Cushion Blue Sapphire GIA Certified Sri Lanka
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W 0.3 in D 0.19 in L 0.26 in
3.79ct Cushion Blue Sapphire GIA Certified Sri Lanka
Located in Toronto, Ontario
: Sapphire Geographic Origin: Sri Lanka Treatment: Heated Item Description: One loose stone Weight: 3.79
Category

2010s Sri Lankan Loose Gemstones

Materials

Blue Sapphire

3.79ct Cushion Blue Sapphire GIA Certified Sri Lanka
3.79ct Cushion Blue Sapphire GIA Certified Sri Lanka
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W 0.36 in D 0.25 in L 0.32 in
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Loose Blue Sapphire Cushion For Sale on 1stDibs

Find the exact loose blue sapphire cushion you’re shopping for in the variety available on 1stDibs. A loose blue sapphire cushion from Fine Jewels UK, Sarosi By Timeless Gems and Merkaba — each of whom created a beautiful version of this treasured accessory — is worth considering. Today, if you’re looking for a cushion cut version of this piece and are unable to find the perfect match, our selection also includes alternatives. Most of our loose blue sapphire cushion for sale are for men, but there are 8 pieces available to browse for women.

How Much is a Loose Blue Sapphire Cushion?

On average, a loose blue sapphire cushion at 1stDibs sells for $5,051, while they’re typically $102 on the low end and $235,600 for the highest priced versions of this item.

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.