Carat Gem Lab
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6.20 Carat Natural Pink Sapphire and Diamond Ring
By Claris-A
Located in Monte Carlo, MC
Carat Gem Lab, the esteemed laboratory in France .
Total weigh of diamonds: 1.97 cts (FG VS+)
French
Category
2010s French Modern Cocktail Rings
Materials
Diamond, White Diamond, Pink Sapphire, 18k Gold, White Gold
18 Karat White Gold Ring with No Heat Star Ruby 6 Carat, Diamonds 1.83 Carat
Located in Antwerp, BE
Red, Cabochon Star Ruby, No indications of heating. Comes with Carat Gem Lab Certificate CGL28027
Category
20th Century European Artisan Signet Rings
Materials
Ruby, Star Ruby, Diamond, White Gold, 18k Gold
Carat Gemlab Certified 2.54 Carat Emerald Dome Ring with Baguette Diamonds
Located in Antwerp, BE
Carat Gem Lab Certificate
Category
21st Century and Contemporary Artisan Cocktail Rings
Materials
Diamond, Emerald, 18k Gold, Yellow Gold
18kt White Gold Bracelet Set Necklace Earring Sapphire Diamonds CGL Certified
Located in Antwerp, BE
diamonds Together approx 17.13 Carat.
Material: 18 kt White gold.
Comes with Carat Gem Lab certificate
Category
21st Century and Contemporary Belgian Contemporary More Necklaces
Materials
Diamond, Blue Sapphire, Sapphire, 18k Gold, White Gold
Certified 1 Carat Diamonds Sapphires 18 Carat White Gold Art Deco Style Ring
Located in Paris, FR
with diamonds.
Central diamond weight: 0.94 carats
With a Carat Gem Lab certificate specifying color
Category
2010s French Art Deco Engagement Rings
Materials
Diamond, Sapphire, 18k Gold, White Gold
Certified 40 carats Santa Maria Aquamarine 18-carat White Gold Ring
Located in Paris, FR
.
Aquamarine weight: 39.24 carats
With Carat Gem Lab certificate, specifying Natural Aquamarine, Santa-Maria
Category
Late 20th Century French Modern Cocktail Rings
Materials
Aquamarine, 18k Gold, White Gold
Certified 4.22 Carats Paraïba Tourmaline 1.60 Carats Diamonds 18K White Gold Rin
Located in Paris, FR
surrounded by brilliant-cut diamonds.
Tourmaline certified by the Carat Gem Lab.
Ring dimensions: 16.59 x
Category
2010s French Contemporary Engagement Rings
Materials
Diamond, Tourmaline, Paraiba, White Gold, 18k Gold
Platinum Toi & Moi Ring with 2.4 Ct Ruby and 1.55ct Diamond
Located in Antwerp, BE
, intense red, Comes with Carat Gem Lab certificate
Diamonds: Cushion shape diamond 1.55ct G SI1 Comes with
Category
21st Century and Contemporary Artisan More Rings
Materials
Diamond, Ruby, Platinum
18kt White Gold Earrings with 21.42ct Sapphires, 5.09ct Diamonds, CGL Certified
Located in Antwerp, BE
pieces together 5.09 ct in total.
Material: 18kt white gold
Very secure fastening
Comes with Carat Gem
Category
21st Century and Contemporary Contemporary Chandelier Earrings
Materials
Diamond, Sapphire, 18k Gold
Free Shipping
H 17.56 in L 5.91 in
18kt Yellow & White Gold Ring With a 9.93Ct Ceylon Cabochon Sapphire & Diamonds
Located in Antwerp, BE
sapphire 9.93 ct. Comes with Carat Gem Lab certificate.
Material: 18 kt. white and yellow gold
Ring size
Category
21st Century and Contemporary Belgian Artisan Fashion Rings
Materials
Diamond, Sapphire, White Gold
18kt White Gold Ring with Heart Shaped Ruby and Diamonds , CGL Certified
Located in Antwerp, BE
/ 0.300 oz / 5.5 dwt
Comes with a Carat Gem Lab Certificate
Category
21st Century and Contemporary Artisan More Rings
Materials
Diamond, Ruby, White Gold
18kt White Gold Bracelet 27.33ct Sapphires, 9ct Diamonds, CGL Certificated
Located in Antwerp, BE
in total.
Material: 18 kt white gold
Comes with very secure fastening.
Comes with a Carat Gem Lab
Category
21st Century and Contemporary Contemporary Tennis Bracelets
Materials
Diamond, Blue Sapphire, Sapphire, 18k Gold
Free Shipping
H 0.32 in Dm 6.89 in L 7.49 in
18kt Yellow Gold Ring 6.75ct Minor Emerald Colombia, Triangle Diamonds CGL
Located in Antwerp, BE
Gem Lab certificate.
Category
21st Century and Contemporary Contemporary Fashion Rings
Materials
Diamond, Emerald, 18k Gold, Yellow Gold
2.02 Carat Unheated Intense Red Cushion Natural Ruby 'Mozambique' Ring Certified
Located in Hong Kong, Hong Kong
gold, ring size 6½
Accompanied from the Carat Gem Lab report stating that the 2.02 carat sapphire is
Category
2010s Hong Kong Art Deco Cluster Rings
Materials
Ruby, Diamond, 18k Gold
18kt White Gold 59.31ct Sapphire, 17.13ct Diamonds CGL Certified
Located in Antwerp, BE
.
Material: 18kt White gold.
Comes with Carat Gem Lab certificate.
Category
21st Century and Contemporary Contemporary More Necklaces
Materials
Diamond, Sapphire, 18k Gold
18kt White Gold Ring 4.05ct Burma Ruby, 5.76ct Diamonds, CGL Certified
Located in Antwerp, BE
: 18 kt. white gold
Size:51
Total weight: 10.6 grams, 6.8 dwt , 0.375 oz.
Comes with a Carat Gem Lab
Category
21st Century and Contemporary Contemporary Cocktail Rings
Materials
Diamond, Ruby, White Gold, 18k Gold
Platinum Asprey & Co Sapphire & Diamond Bracelet to His Majesty Qaboos Bin Said
By Asprey London
Located in Antwerp, BE
& Royal Blue Siam Sapphires together 23.5 ct.
Comes with a Carat Gem Lab certificate (Report number
Category
20th Century British Artisan Tennis Bracelets
Materials
Diamond, Sapphire, Platinum
Free Shipping
Dm 7.09 in
18kt White Gold 4 Ct No Heat Vivid Ruby Ring, 1.5 Ct Diamonds, CGL Certificate
Located in Antwerp, BE
Ruby, 4.02ct
Comes with a Carat Gem Lab Certificate
Diamonds 24 brilliant cut diamonds together
Category
21st Century and Contemporary Artisan Engagement Rings
Materials
Diamond, Ruby, 18k Gold, White Gold, Yellow Gold
18 kt Yellow Gold Ring with 2ct Sapphire and 2.8ct Diamonds, Estate Sultan Oman
Located in Antwerp, BE
Carat Gem Lab Certificate CGL28028
Diamonds: Brilliant cut diamonds together approx. 2.8 ct. diamonds
Category
20th Century European Artisan Cluster Rings
Materials
Diamond, Sapphire, 18k Gold, Yellow Gold
Certified 2 Carats Diamond 18 Carats White Gold Solitaire Ring
Located in Paris, FR
Carat Gem Lab certificate, specifying H color, SI1 clarity, no fluorescence.
Total estimated weight of
Category
Early 2000s French Modern Solitaire Rings
Materials
Diamond, White Gold
18kt Ring 4.83 Minor Emerald Diamonds CGL Certified
Located in Antwerp, BE
weight: 7.6 gram
Comes with a Carat Gem Lab certificate, Orologio certificate, a presentable box
Category
21st Century and Contemporary Contemporary Fashion Rings
Materials
Diamond, Emerald, 18k Gold
Certified 4.21 Carats Brazilian Emerald Diamonds 18 Carats White Gold Pompadour
Located in Paris, FR
brilliant diamonds.
Weight of the emerald : 4.21 carats
With Carat Gem Lab certificate, specifying natural
Category
Vintage 1970s French Modern Engagement Rings
Materials
Diamond, Emerald, White Gold
Platinum Clip-On Earrings 7ct Rubies CGL Certified, 6.8ct Diamonds, Estate Oman
Located in Antwerp, BE
.
Comes with Carat Gem Lab certificate CGL28029
Diamonds:
14 Brilliant cut diamonds, together approx. 4
Category
20th Century European Artisan Clip-on Earrings
Materials
Diamond, Ruby, Platinum
Free Shipping
W 1.23 in D 0.62 in L 0.75 in
Beautiful 18kt Handmade White Gold Ring4.36 Ct Colombia Emerald Minor&Diamonds
Located in Antwerp, BE
Measurements: 23mm x 21.7mm
Total weight: 11.8 gram / 0.415 oz / 7.6 dwt
Comes with Carat Gem Lab
Category
21st Century and Contemporary Artist Cocktail Rings
Materials
Diamond, Emerald, 18k Gold, White Gold
18 Kt, Earrings Minor Colombian 5.39 & 5.14ct Emeralds, Diamonds, CGL Certified
Located in Antwerp, BE
Emeralds, 5.39 ct. and 5.14 ct.
Comes with Carat Gem Lab certificate Report number CGL17383
Diamonds
Category
21st Century and Contemporary Belgian Artisan Dangle Earrings
Materials
Diamond, Emerald, 18k Gold, Yellow Gold
Free Shipping
W 0.32 in L 1.23 in
18 Kt White Gold Pendant / Hanger Intense Green Emerald 10.5 Ct & Diamonds
Located in Antwerp, BE
/ 0.675 oz / 12.3 dwt
Necklace will come presented in a brand new jewellery box with the Carat Gem Lab
Category
21st Century and Contemporary Belgian Artisan Pendant Necklaces
Materials
Emerald, Diamond, White Gold, 18k Gold
Free Shipping
W 1.08 in D 0.44 in L 1.69 in
Certified Unheated 3.63 Carats Burma Cabochon Ruby Diamonds Platinum Yellow Gold
Located in Paris, FR
.
Estimated ruby weight: 3.63 carats
With Carat Gem Lab certificate, specifying natural ruby, intense red
Category
Early 20th Century French Modern Engagement Rings
Materials
Diamond, Ruby, 18k Gold, Yellow Gold, Platinum
CGL Certified, 4.43 Ct Colombian Emerald Minor Oil, Diamond Ring 18 kt Whit Gol
Located in Antwerp, BE
adjusted for free)
Comes with a Carat Gem Lab certificate.
Category
21st Century and Contemporary Contemporary Fashion Rings
Materials
Diamond, Emerald, 18k Gold, White Gold
18 kt. Gold Ring With 3.78 ct. Minor Emerald Cabochon, Diamonds, Sapphire, Ruby
Located in Antwerp, BE
, Sapphire, Ruby
Emerald: Intense Green Minor Cabochon 3.78 ct. with Carat Gem Lab certificate CGL 15818
Category
21st Century and Contemporary Belgian Artisan Fashion Rings
Materials
Sapphire, Ruby, Emerald, Diamond, Gold
Certified Unheated Burma Cabochon Spinel Diamond 18k White Gold Ring
By Les Pierres de Julie
Located in Paris, FR
diamonds.
One of a kind.
Weight of the spinel : 4.01 carats
With Carat Gem Lab certificate, specifying
Category
2010s French Modern Engagement Rings
Materials
Diamond, Spinel, White Gold
Necklace with 5.5 Carat Colombia Minor Emerald and Diamonds, CGL Certificate
Located in Antwerp, BE
Gorgeous Necklace Set With 5.5 Ct Colombian Minor Emerald and Diamonds With Carat Gem Lab
Category
20th Century Pendant Necklaces
Materials
Diamond, Emerald, 18k Gold, White Gold
Free Shipping
W 0.77 in D 0.21 in L 2.44 in
Certified Retro Ruby Diamonds 18 Carats White Gold Ring
Located in Paris, FR
weight of the ruby : 1.75 carats
With Carat Gem Lab certificate, specifying natural ruby, intense red
Category
Vintage 1970s French Modern Fashion Rings
Materials
Diamond, Ruby, White Gold
Colombian emerald and diamond flank solitaire ring, circa 1925
Located in London, GB
a smooth D-shape shank. Marked platinum, circa 1925, accompanied by Carat Gem Lab report #CGL19347
Category
Vintage 1920s Solitaire Rings
Materials
Diamond, Emerald, Platinum
Adler Genèva 18kt Gold Necklaces 480ct Faceted Bead Emeralds CGL Certified
By Adler
Located in Antwerp, BE
Emeralds
Both necklaces come with a certificate from Carat Gem Lab (Report number: CGL28033 and CGL28034
Category
20th Century Swiss Artisan Beaded Necklaces
Materials
Emerald, Gold, 18k Gold
Certified Emerald 2.7ct & 2.7ct and Diamond Twist Ring in 18K Yellow Gold
Located in London, GB
, dimensions: 11.3 x 7.7 x 5.4 mm each.
With accompanying gemmological certificate from Carat Gem Lab.
82 x
Category
2010s European Modernist Cocktail Rings
Materials
Diamond, Emerald, 18k Gold, Yellow Gold
Boucheron Paris Solitaire Natural Unenhanced Burmese Sapphire Diamond Ring
By Boucheron
Located in London, GB
SSEF report #131307, Carat Gem Lab report #06105, and Gem Paris Laboratoire report #20131971099-1. UK
Category
Vintage 1930s French Solitaire Rings
Materials
Blue Sapphire, Diamond, Platinum
Tiffany & Co. Star Ruby Diamond Gold Ring
By Tiffany & Co.
Located in London, GB
, accompanied by Carat Gem Lab report #CGL11698. UK finger size L.
Please note shipping to the United States of
Category
Vintage 1970s French Engagement Rings
Materials
Diamond, Ruby, Yellow Gold
1.69 Carat Burmese Sapphire and 1.15 Carat Diamond White Gold Cocktail Ring
Located in Jesmond, Newcastle Upon Tyne
diamond ring is supplied with an independent diamond grading report card, in addition to a Carat Gem Lab
Category
Vintage 1930s Unknown Cluster Rings
Materials
Diamond, Sapphire, White Gold, Platinum
Blue Thailand Sapphire 1.18 Carat IGI Certified Oval Cut Loose Natural Gem
By Gems and Jewels UK
Located in Birmingham, GB
. Fully certified by IGI in Antwerp, one of their best and most well equipped gem labs.
Standard heated
Category
21st Century and Contemporary Loose Gemstones
Materials
Sapphire, Blue Sapphire
Untreated Cushion Cut Blue Sapphire 0.63ct IGI Certified Loose Gem
By Gems and Jewels UK
Located in Birmingham, GB
gem labs.
Totally untreated and unheated, very rare for natural sapphires.
Gemstones displayed in the
Category
20th Century Loose Gemstones
Materials
Blue Sapphire
GRS SWISS LAB Certified 5.43 Carat Blue Sapphire (BURMA) Unheat
Located in Taipei, TW
and luster is easily visible with naked eyes ,this gem comes with an GRS SWISS LAB certificate
Category
21st Century and Contemporary Burmese Loose Gemstones
Materials
Blue Sapphire
Free Shipping
W 0.4 in D 0.25 in L 0.37 in
4.53ct White Jadeite Jade IGI Certified ‘A’ Grade Oval Cabochon Rare Gem
By Gems and Jewels UK
Located in Birmingham, GB
Antwerp, one of their best and most well equipped gem labs.
Totally Untreated Jadeite jade, referred to as
Category
20th Century More Jewelry
Materials
Jade
Free Shipping
H 0.16 in W 0.5 in D 0.43 in
Rare 2.30Ct IGI Certified Jadeite Jade ‘A’ Grade Deep Green Oval Cabochon Gem
By Gems and Jewels UK
Located in Birmingham, GB
green colour. Fully certified by IGI in Antwerp, one of their best and most well equipped gem labs
Category
21st Century and Contemporary More Jewelry
GRS SWISS LAB Certified 2.89 Carat RUBY (BURMA) Un heat
Located in Taipei, TW
Burma ruby, or Burmese ruby, is the finest sort of gem-quality rubies that you can find anywhere in
Category
21st Century and Contemporary Burmese Loose Gemstones
Materials
Ruby
Untreated Deep Blue Sapphire 0.55ct Rare Cushion Cut IGI Certified Loose Gem
By Gems and Jewels UK
Located in Birmingham, GB
IGI Antwerp, one of the best and most well equipped gem labs.
Has an excellent cushion cut with
Category
20th Century Loose Gemstones
Materials
Blue Sapphire
Free Shipping
H 0.12 in W 0.2 in D 0.16 in
7.30ct Rare Jadeite Jade IGI Certified ‘A’ Grade Green Oval Cabochon Blister Gem
By Gems and Jewels UK
Located in Birmingham, GB
in Antwerp, one of their best and most well equipped gem labs.
Totally Untreated Jadeite jade
Category
20th Century More Jewelry
Materials
Jade
Free Shipping
H 0.28 in W 0.46 in D 0.41 in
Rare 4.28ct IGI Certified Green Jadeite Jade ‘A’ Grade Oval Cabochon Loose Gem
By Gems and Jewels UK
Located in Birmingham, GB
colour. Fully certified by IGI in Antwerp, one of their best and most well equipped gem labs.
Totally
Category
20th Century Loose Gemstones
Materials
Jade
Free Shipping
H 0.2 in W 0.42 in D 0.4 in
Rare 5.33ct IGI Certified Jadeite Jade ‘A’ Grade Green Oval Cabochon Blister Gem
By Gems and Jewels UK
Located in Birmingham, GB
green colour. Fully certified by IGI in Antwerp, one of their best and most well equipped gem labs
Category
20th Century More Jewelry
Materials
Jade
Free Shipping
H 0.23 in W 0.45 in D 0.34 in
Unheated Purple Sapphire Ring Gem 0.75 Carat Loose Gemstone
Located in Makola, LK
Ceylon Purple sapphire 0.75 Carats unheated
• Variety: Sapphire
• Origin: Sri Lanka (Ceylon
Category
21st Century and Contemporary Sri Lankan Loose Gemstones
Materials
Sapphire, Blue Sapphire, Purple Sapphire, Padparadscha Sapphire
Free Shipping
W 0.25 in D 0.16 in L 0.32 in
Guild Lab. Certified 1.53 Carats Ruby Diamonds set in 18K White Gold Ring
Located in Los Angeles, CA
right amount of sparkle. With an even tone, this gem has been cut to perfection. An elegant, timeless
Category
21st Century and Contemporary Malagasy Engagement Rings
Materials
Diamond, Ruby, 18k Gold, White Gold
Chatham Emerald Solitaire Bezel Ring Lab-Grown 1.15 Carats in 18K Yellow Gold LV
By Five Star Jewelry
Located in Austin, TX
nurture and grow in a laboratory! With recent developments in lab-grown diamonds, other lab-grown gems are
Category
21st Century and Contemporary American Contemporary Fashion Rings
Materials
Emerald, Yellow Gold
Certified Unheated Blue Sapphire Ring Gem 1.25 Carat Oval Gemstone Ceylon Origin
Located in Makola, LK
Ceylon Unheated Blue Sapphire 1.25 Carats.
• Variety: Sapphire
• Origin: Sri Lanka (Ceylon
Category
21st Century and Contemporary Sri Lankan Loose Gemstones
Materials
Sapphire, Blue Sapphire, Purple Sapphire
Free Shipping
W 0.24 in D 0.21 in L 0.33 in
Kashmir Sapphire Ring Gem 3 Carat Unheated Unmounted Loose Gemstone
By Merkaba
Located in Beverly Hills, CA
" designation by the prestigious AGL gem lab, is being offered unmounted to the most discerning gem collectors
Category
21st Century and Contemporary Indian Contemporary Loose Gemstones
Materials
Sapphire, Blue Sapphire
Unheated Sapphire Heart Shape Gem 7.57 Carats Loupe Clean No Heat Loose Gemstone
By Merkaba
Located in Beverly Hills, CA
to a lovely lady.
Dimensions: 14.10 x 10.70 x 7.05 mm.
The Lotus gem lab certificate is attached to
Category
21st Century and Contemporary Malagasy Contemporary Engagement Rings
Materials
Sapphire, Blue Sapphire
Free Shipping
W 0.43 in D 0.28 in L 0.56 in
Alexandrite & Diamond Ring 7.35 Carats, Rare Color Change Gem Certified
Located in Southbury, CT
A 7.35-carat transparent natural Alexandrite color change gem is surrounded by a halo of 21
Category
2010s Unknown Artisan Cocktail Rings
Materials
Alexandrite, Diamond, 18k Gold
GIA 4.93 Carat Natural Top Gem Sapphire Diamond Ring Classic Set
Located in New York, NY
X 5.65 mm
GIA is amoungst the prestige Labs of the world
Diamonds: 1.40ct.
Full cuts, princess
Category
2010s American Solitaire Rings
Materials
Diamond, Blue Sapphire, 18k Gold, Yellow Gold, Platinum
GIA 18 Karat 23.46 Carat Natural Ruby Diamond Bracelet Blood Vivid Super Gem
Located in New York, NY
20.58ct. Natural Rubies
Excellent Blood / Vivid red tone
Tested 1 ruby with GIA Lab -please see
Category
2010s American Tennis Bracelets
Materials
Diamond, Ruby, 18k Gold, Yellow Gold
Free Shipping
W 0.22 in L 7.25 in
Certified 3.70 Carat Jadeite A-Grade Jade Fine Green Untreated 18k Gold Pendant
By Gems and Jewels UK
Located in Birmingham, GB
3.70 carat jadeite jade with a beautiful deep green colour, set in a fine 18k yellow gold claw set
Category
21st Century and Contemporary Pendant Necklaces
Materials
Jade, Gold, 18k Gold, Yellow Gold
Certified 2.76 Carat Jadeite A-Grade Jade Green Pear Untreated 18k Gold Pendant
By Gems and Jewels UK
Located in Birmingham, GB
IGI Certified A-Grade Deep Green Jadeite 18k Gold Pendant Necklace.
Stunning 2.76 carat untreated
Category
21st Century and Contemporary Pendant Necklaces
Materials
Jade, Gold, 18k Gold, Yellow Gold
GIA Certified 1.15Ct Blue Sapphire Untreated Fine Natural Triangle Cut Gemstone
By Gems and Jewels UK
Located in Birmingham, GB
Untreated Deep Blue Sapphire Gemstone.
1.15 Carat unheated sapphire with a fine deep blue colour and
Category
21st Century and Contemporary More Jewelry
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Carat Gem Lab For Sale on 1stDibs
On 1stDibs, you can find the most appropriate carat gem lab for your needs in our varied inventory. Frequently made of Gold, 18k Gold and White Gold, this item was constructed with great care. Our collection of these items for sale includes 1 vintage editions and 11 modern creations to choose from as well. You’re likely to find the perfect carat gem lab among the distinctive items we have available, which includes versions made as long ago as the 20th Century as well as those produced as recently as the 21st Century. For this particular accessory, there are many different carat weights to choose from, but versions are of considerable interest. Finding an appealing carat gem lab — no matter the origin — is easy, but Héritage Jewelry each produced a popular version that is worth a look. A cushion cut version of this piece has appeal, but there are also emerald cut and brilliant cut versions for sale. There aren’t many items for men if you’re seeking a carat gem lab, as most of the options available are for women and unisex.
How Much is a Carat Gem Lab?
Prices for a carat gem lab can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $8,085 and can go as high as $224,767, while this accessory, on average, fetches $53,735.
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