30 Carat Gemstone
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Vivid Green Tourmaline, Faceted Gem, 12, 30 Ct., Loose Gemstone, Oval
Located in Kirschweiler, DE
We are delighted to be able to offer, this 12,30 ct. green Tourmaline from our collection.
This beautiful gem has a vivid green color and a great fire. Cutting and proportion enable ...
Category
21st Century and Contemporary German Contemporary Loose Gemstones
Materials
Tourmaline
Free Shipping
H 0.33 in W 0.67 in L 0.52 in
Hand-carved 51.01 Carat Buddha Face Brazilian Lavender Amethyst Loose Gemstone
By Vaibhav Dhadda
Located in Jaipur, Rajasthan
gemstone is of very good quality with Lavender color with the buddha face carved out with intricate detail
Category
21st Century and Contemporary Indian Contemporary Loose Gemstones
Materials
Amethyst
Free Shipping
W 1.19 in D 0.6 in L 1.19 in
Natural London Blue Topaz Gemstone 23.05 Ct Round Mixed Cut.
Located in AMSTERDAM, NL
low as $10 to $30 per carat.
Category
2010s Brazilian Loose Gemstones
Materials
Topaz, Blue Topaz
GIA 4.52 Carat Cushion Modified Brilliant Cut Loose Diamond
Located in Beverly Hills, CA
our spectacular 4.52 carat cushion modified brilliant cut loose diamond, a mesmerizing gemstone that
Category
20th Century Loose Gemstones
Materials
Diamond, White Diamond
GIA 3.02 Carat Cushion Brilliant Cut Loose Diamond
Located in Beverly Hills, CA
One GIA 3.02 Carat Cushion Brilliant Cut Loose Diamond. Accompanied by GIA #5231221039 stating the
Category
Late 20th Century Loose Gemstones
Materials
Diamond
Radiant 1.12ct Ideal Cut Round Diamond - IGI Certified
Located in רמת גן, IL
Radiant 1.12ct Ideal Cut Round Diamond - IGI Certified
A magnificent 1.12-carat round diamond
Category
2010s Israeli Loose Gemstones
Materials
Diamond
2.18ct Pear Greenish- Yellow Sapphire, No Heat
Located in เกาะสมุย, TH
upon request for $30.
-Come with small gemstone box case
-Certificate of guarantee
-Free shipping
Category
21st Century and Contemporary Asian Loose Gemstones
Materials
Yellow Sapphire
NEON Blue Apatite, Large 10.72ct Cushion Cut
Located in Methuen, MA
can be seen from 30 feet away with no problem! An incredible piece and the body color - Think of a
Category
2010s African Loose Gemstones
Materials
Apatite
Natural London Blue Topaz Gemstone21.23 Ct Oval Mixed Cut.
Located in AMSTERDAM, NL
low as $10 to $30 per carat.
Category
2010s Brazilian Loose Gemstones
Materials
Topaz, Blue Topaz
Wonderful Large Round 2.60ct BLUE Sapphire (Chantaburi or Trat)
Located in Methuen, MA
likely heated, as most Sapphire, Ruby, Aquamarine, Tanzanite, Tourmaline and other gemstones are
Category
Early 2000s Asian Loose Gemstones
Materials
Blue Sapphire
GIA Certified Emerald Cut Diamond 1.60ct F/VS1 Loose GIA XX Inscription
By GIA
Located in Rancho Santa Fe, CA
, and internationally for over 30 years. Pre-owned jewelry and watches are evaluated before they are
Category
2010s American Modern Loose Gemstones
Materials
Diamond
Free Shipping
W 0.23 in D 0.16 in L 0.3 in
1.53ct Round Brilliant Cut Diamond GIA Certified Loose Excellent Symmetry E SI2
Located in Rancho Santa Fe, CA
questions.
Rock N Gold Creations has been in business for 30 years. The owner is a GIA Graduate. With a
Category
Early 2000s Unknown Modern Loose Gemstones
Materials
Diamond
1.00ct Loose Cushion Cut Diamond GIA Certified, H Color, VS2 Clarity, Good Cut
Located in Rancho Santa Fe, CA
let us know if you have any questions.
Rock N Gold Creations has been in business for 30 years. The
Category
2010s Unknown Modern Loose Gemstones
Materials
Diamond
2.74 Carat Gemstone and Diamond Gold Stackable Bands
By Roshe Jewels
Located in Los Angeles, CA
. For the diamond bands there are 30 Round Cut Diamonds that weigh 0.45 carats. (Clarity: SI, Color: F
Category
21st Century and Contemporary American Contemporary Band Rings
Materials
Multi-gemstone, Garnet, Diamond, Amethyst, Rose Gold, Yellow Gold, White...
12.25 Carat Square Multi Color Gemstone Yellow Gold Bracelet
Located in Stamford, CT
Multi-gemstone tennis bracelet. Approximately 12.25 carats of well matched and blended natural
Category
Late 20th Century Tennis Bracelets
Materials
Multi-gemstone, Tourmaline, Blue Topaz, Amethyst, Citrine, Garnet, Gold,...
23.00 Carat Multi Color Gemstone Yellow Gold Necklace
Located in Stamford, CT
Multi color gemstone link necklace. Approximately 23.00 carats of well matched and blended square
Category
Late 20th Century Link Necklaces
Materials
Blue Topaz, Citrine, Topaz, Amethyst, Tourmaline, Gold, 18k Gold, Yellow...
186.00 Carat Multi Color Gemstone Yellow Gold Interchangeable Cufflinks
Located in Stamford, CT
complete sets polished natural gemstone bars. 1 set of gold interchangeable 18k bars. The gemstone bars
Category
Late 20th Century Cufflinks
Materials
Chrysophrase, Coral, Hematite, Onyx, Tiger's Eye, Gold, 18k Gold, Yellow...
Natural Amethyst Bracelet 30 Carats Sterling Silver
Located in Laguna Niguel, CA
It comes with the appraisal by GIA GG/AJP
All Gemstones are Natural
14 Amethysts = 30.10 Carats
Category
21st Century and Contemporary Modern Modern Bracelets
Materials
Amethyst, Silver, Sterling Silver
Natural Amethyst Bracelet 30 Carats Sterling Silver
Located in Laguna Niguel, CA
It comes with the appraisal by GIA GG/AJP
All Gemstones are Natural
14 Amethysts = 30.10 Carats
Category
21st Century and Contemporary Modern Modern Bracelets
Materials
Amethyst, Silver, Sterling Silver
Natural Amethyst Bracelet 30 Carats Sterling Silver
Located in Laguna Niguel, CA
It comes with the appraisal by GIA GG/AJP
All Gemstones are Natural
14 Amethysts = 30.10 Carats
Category
21st Century and Contemporary Modern Modern Bracelets
Materials
Amethyst, Silver, Sterling Silver
3.33 Carat Multi Color Gemstone Diamond 14 Karat Gold Stackable Bands
By Roshe Jewels
Located in Los Angeles, CA
3.33 Carat Multi Color Gemstone Diamond Gold Stackable Bands
These versatile stackable bands can
Category
21st Century and Contemporary American Contemporary Band Rings
Materials
Sapphire, Garnet, Diamond, Amethyst, Rose Gold, Gold, Yellow Gold, White...
1940s Retro 30 Carat Amethyst and Diamond Bracelet
Located in Santa Barbara, CA
luxurious, textured 18 karat yellow gold links delicately embrace 30 carats of soothing, rich, royal purple
Category
Vintage 1940s Retro Retro Bracelets
Materials
Amethyst, Diamond, Gold, 18k Gold, Yellow Gold
30 Carat Mystery Set Ruby & Diamond Dangle Earrings
By Vivid Diamonds
Located in Miami, FL
hue, collectively weighing an awe-inspiring ~30 carats. Suspended gracefully above this cascade of
Category
21st Century and Contemporary American Modern Dangle Earrings
Materials
Diamond, Ruby, 18k Gold, White Gold
12.1 Carats Citrine Gemstone Men's Cufflinks in 925 Sterling Silver
Located in Houston, TX
These 12.1 Carats Citrine Gemstone Men's Cufflinks in 925 Sterling Silver are elegant accessories
Category
21st Century and Contemporary American Modern Cufflinks
Materials
Citrine, Silver, Sterling Silver
Art Deco 30 Carat Amethyst Onyx and Pearl Necklace
Located in Santa Barbara, CA
, rich violet amethyst of an impressive 30 carats. The classic "target design" with intricate calibrè
Category
Vintage 1920s Art Deco Pendant Necklaces
Materials
Amethyst, Onyx, Pearl, 18k Gold, White Gold
Oscar Heyman 30 Carat Diamond Bangle Bracelet Circa 1970
By Oscar Heyman
Located in Miami, FL
, featuring 170 round brilliant cut diamonds weighing approximately 30 carats total, E color, VS clarity
Category
Vintage 1970s American Modern Modern Bracelets
Materials
Diamond, Platinum
Boulder Opal Ivy ring Australian opal gemstone Peach Color 15 carats
By Alexey Gabilo
Located in Berlin, DE
1.06 in / 18 х 27 mm
gemstone weight - 15 carats
ring size - 8.5 US - 58 EU
ring weight - 14.7 grams
Category
2010s German Art Nouveau Fashion Rings
Materials
Opal, Gold, 18k Gold, Yellow Gold
30 carat Smokey Quartz Foliate Motif Ring 14k Yellow Gold
Located in beverly hills, CA
This vintage organic cocktail ring boasts a stunning 30 carat rectangular step cut smokey quartz
Category
Late 20th Century Artisan Cocktail Rings
Materials
Quartz, 14k Gold, Yellow Gold
18K Yellow Gold Citrine With Multiple Gemstones Ring Approximately 12 Carats
Located in Bradenton, FL
18k yellow gold Citrine and diamond ring, The dimensions of the oval Citrine are approximately 30
Category
Mid-20th Century Modern Cocktail Rings
Materials
Citrine, 18k Gold, Yellow Gold
NO HEAT Ruby Ring GIA 2ct Burma Pigeon Blood VS Diamond Original 1930's Art Deco
Located in Dearborn, MI
Specs/Quality
2 Natural Ruby Gemstones (NOT Created, Enhanced or Man-Made) 100% Natural
.30 Carat
Category
Vintage 1930s Art Deco Cocktail Rings
Materials
Diamond, Ruby, 14k Gold, White Gold
12.96 Carat Blue Topaz Gemstone Dangle Earrings for Women in 925 Silver
Located in Houston, TX
These gorgeous 12.96 Carat Blue Topaz Gemstone Dangle Earrings are crafted from the finest material
Category
21st Century and Contemporary American Art Nouveau Dangle Earrings
Materials
Topaz, Blue Topaz, Silver, Sterling Silver
Retro Gold Pendant 6 Carat Natural Diamond, Ruby, Quartz Gemstone circa 1960
Located in Los Angeles, CA
Retro 14k Yellow Gold Pendant 6 Carat Natural Diamond, Ruby, Quartz Gemstone Circa 1960.
The
Category
Vintage 1960s Unknown Retro Pendant Necklaces
Materials
Diamond, Ruby, Gold, 14k Gold
30 Carat Green Amethyst and Diamond Earring in 18 Karat Yellow Gold
By Sunita Nahata
Located in Hong Kong, HK
amethyst, diamond and semi-precious gemstones earring in 18K yellow gold.
Amethyst: 30.010 carat baguette
Category
21st Century and Contemporary Hong Kong Contemporary Dangle Earrings
Materials
Amethyst, Citrine, Diamond, Garnet, Pearl, Gold, 18k Gold, Yellow Gold
30 Carat Guava Quartz Ring and Earring Set in 18 Karat Rose Gold with Diamonds
By Sunita Nahata
Located in Hong Kong, HK
, diamond and semi-precious gemstone earring in 18K rose gold.
Guava Quartz: 30.02 carat baguette
Category
21st Century and Contemporary Hong Kong Contemporary Dangle Earrings
Materials
Amethyst, Diamond, Garnet, Pearl, Quartz, Tourmaline, Gold, 18k Gold, Ro...
30 Carat Black Onyx Earring in 18 Karat Rose Gold with Diamonds
By Sunita Nahata
Located in Hong Kong, HK
, diamond and semi-precious gemstones earrings in 18K rose gold.
Black Onyx: 30.63 carat baguette
Category
21st Century and Contemporary Hong Kong Contemporary Dangle Earrings
Materials
Garnet, Onyx, Pearl, Amethyst, Diamond, White Diamond, Gold, 18k Gold, R...
30+ Carat White Diamond Necklace and Earrings 18K Set Certified Round-Brilliant
By Gad & Co.
Located in Miami, FL
: Contemporary
Necklace Details:
- Gemstone: White Diamond
- Carat Weight: 24.55 Carats (Total Weight)
- Center
Category
21st Century and Contemporary Contemporary Drop Necklaces
Materials
Diamond, White Diamond, Gold, 18k Gold, White Gold
Romantic 30 Carat Cabochon Rose Quartz, Diamond, 14K Rose Gold Flower Ring
Located in New York, NY
Spectacular 30 carat fine translucent pink Rose Quartz and diamond rose gold Cocktail ring
Category
21st Century and Contemporary Romantic Cocktail Rings
Materials
Quartz, Diamond, 14k Gold, Rose Gold
30 Carat Oval Cut Ruby & Mixed Cut Diamond Tennis Necklace in Platinum
By Gad & Co.
Located in Miami, FL
Natural Ruby and Diamond tennis necklace, set in platinum 900. Featuring 18.68 carats in oval-cut
Category
2010s North American Art Deco Chain Necklaces
Materials
Diamond, Ruby, Platinum
Vintage Diamond Gemstone 18k Yellow Gold Ring
Located in Beverly Hills, CA
approximately 0.60 carats, this ring boasts a rainbow of exquisite gemstones, each adding its own unique allure
Category
Vintage 1980s Engagement Rings
Materials
Diamond, White Diamond, Emerald, Ruby, Sapphire, Blue Sapphire, Gold, 18...
Cober “Engraved Cluster” 1.20 Carat Yellow Diamond and 30 Diamonds Fashion Ring
By Vincent Cober
Located in OSS, NH
weight of 1.20 ct. VS set in an 18K white gold ring, surrounded by 30 brilliant-cut diamonds F/E with a
Category
2010s Dutch Contemporary Cluster Rings
Materials
Diamond, Yellow Diamond, 18k Gold, White Gold
Retro Diamond Gemstone 14k Yellow Gold Ring
Located in Beverly Hills, CA
round cut rubies, totaling approximately 0.95 carats, each gemstone adding its unique hue to the
Category
Vintage 1940s Engagement Rings
Materials
Diamond, White Diamond, Emerald, Ruby, Sapphire, Blue Sapphire, Gold, 14...
Vintage Diamond Gemstone 18k Yellow Gold Ring
Located in Beverly Hills, CA
One Vintage Diamond Gemstone 18k Yellow Gold Ring. Featuring three marquise cut sapphires with a
Category
Vintage 1980s Engagement Rings
Materials
Diamond, White Diamond, Emerald, Ruby, Sapphire, Blue Sapphire, Gold, 18...
Vintage Chanel Gemstone 18k Yellow Gold Ring
By Chanel
Located in Beverly Hills, CA
One Vintage Chanel Gemstone 18k Yellow Gold Ring. Featuring one step cut citrine weighing
Category
Vintage 1980s Band Rings
Materials
Blue Sapphire, Sapphire, Ruby, Citrine, Yellow Gold, 18k Gold, Gold
Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Laguna Niguel, CA
It comes with the Gemological Appraisal by GIA GG/AJP
All Gemstones are Natural
Zircons = 30.53
Category
21st Century and Contemporary Contemporary Cocktail Rings
Materials
Diamond, White Diamond, Zircon, Blue Zircon, Gold, 14k Gold, White Gold
Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Laguna Niguel, CA
It comes with the Gemological Appraisal by GIA GG/AJP
All Gemstones are Natural
Zircons = 30.53
Category
21st Century and Contemporary Contemporary Cocktail Rings
Materials
Diamond, White Diamond, Zircon, Blue Zircon, Gold, 14k Gold, White Gold
Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Laguna Niguel, CA
It comes with the Gemological Appraisal by GIA GG/AJP
All Gemstones are Natural
Zircons = 30.53
Category
21st Century and Contemporary Contemporary Cocktail Rings
Materials
Diamond, White Diamond, Zircon, Blue Zircon, Gold, 14k Gold, White Gold
Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Laguna Niguel, CA
It comes with the Gemological Appraisal by GIA GG/AJP
All Gemstones are Natural
Zircons = 30.53
Category
21st Century and Contemporary Contemporary Cocktail Rings
Materials
Diamond, White Diamond, Zircon, Blue Zircon, Gold, 14k Gold, White Gold
Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Laguna Niguel, CA
It comes with the Gemological Appraisal by GIA GG/AJP
All Gemstones are Natural
Zircons = 30.53
Category
21st Century and Contemporary Contemporary Cocktail Rings
Materials
Blue Zircon, Zircon, White Diamond, Diamond, White Gold, 14k Gold, Gold
Vintage Diamond Gemstone 14k Gold Harem Ring
Located in Beverly Hills, CA
One Vintage Diamond Gemstone 14k Gold Harem Ring. Featuring one round brilliant cut diamond
Category
Vintage 1970s Engagement Rings
Materials
Diamond, White Diamond, Emerald, Opal, Ruby, Sapphire, Blue Sapphire, Go...
Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Laguna Niguel, CA
It comes with the Gemological Appraisal by GIA GG/AJP
All Gemstones are Natural
Zircons = 30.53
Category
21st Century and Contemporary Contemporary Cocktail Rings
Materials
Diamond, White Diamond, Zircon, Blue Zircon, Gold, 14k Gold, White Gold
Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Laguna Niguel, CA
It comes with the Gemological Appraisal by GIA GG/AJP
All Gemstones are Natural
Zircons = 30.53
Category
21st Century and Contemporary Contemporary Cocktail Rings
Materials
Blue Zircon, Zircon, White Diamond, Diamond, White Gold, 14k Gold, Gold
Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Laguna Niguel, CA
It comes with the Gemological Appraisal by GIA GG/AJP
All Gemstones are Natural
Zircons = 30.53
Category
21st Century and Contemporary Contemporary Cocktail Rings
Materials
Blue Zircon, Zircon, White Diamond, Diamond, White Gold, 14k Gold, Gold
Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Laguna Niguel, CA
It comes with the Gemological Appraisal by GIA GG/AJP
All Gemstones are Natural
Zircons = 30.53
Category
21st Century and Contemporary Contemporary Cocktail Rings
Materials
Blue Zircon, Zircon, White Diamond, Diamond, White Gold, 14k Gold, Gold
Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Laguna Niguel, CA
It comes with the Gemological Appraisal by GIA GG/AJP
All Gemstones are Natural
Zircons = 30.53
Category
21st Century and Contemporary Contemporary Cocktail Rings
Materials
Blue Zircon, Zircon, White Diamond, Diamond, White Gold, 14k Gold, Gold
Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Laguna Niguel, CA
It comes with the Gemological Appraisal by GIA GG/AJP
All Gemstones are Natural
Zircons = 30.53
Category
21st Century and Contemporary Contemporary Cocktail Rings
Materials
Blue Zircon, Zircon, White Diamond, Diamond, White Gold, 14k Gold, Gold
Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Laguna Niguel, CA
It comes with the Gemological Appraisal by GIA GG/AJP
All Gemstones are Natural
Zircons = 30.53
Category
21st Century and Contemporary Contemporary Cocktail Rings
Materials
Blue Zircon, Zircon, White Diamond, Diamond, White Gold, 14k Gold, Gold
Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Laguna Niguel, CA
It comes with the Gemological Appraisal by GIA GG/AJP
All Gemstones are Natural
Zircons = 30.53
Category
21st Century and Contemporary Contemporary Cocktail Rings
Materials
Blue Zircon, Zircon, White Diamond, Diamond, White Gold, 14k Gold, Gold
Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Laguna Niguel, CA
It comes with the Gemological Appraisal by GIA GG/AJP
All Gemstones are Natural
Zircons = 30.53
Category
21st Century and Contemporary Contemporary Cocktail Rings
Materials
Blue Zircon, Zircon, White Diamond, Diamond, White Gold, 14k Gold, Gold
Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Laguna Niguel, CA
It comes with the Gemological Appraisal by GIA GG/AJP
All Gemstones are Natural
Zircons = 30.53
Category
21st Century and Contemporary Contemporary Cocktail Rings
Materials
Blue Zircon, Zircon, White Diamond, Diamond, White Gold, 14k Gold, Gold
Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Laguna Niguel, CA
It comes with the Gemological Appraisal by GIA GG/AJP
All Gemstones are Natural
Zircons = 30.53
Category
21st Century and Contemporary Contemporary Cocktail Rings
Materials
Blue Zircon, Zircon, White Diamond, Diamond, White Gold, 14k Gold, Gold
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30 Carat Gemstone For Sale on 1stDibs
Surely you’ll find the exact 30 carat gemstone you’re seeking on 1stDibs — we’ve got a vast assortment for sale. Every item for sale was constructed with extraordinary care, often using gold, white gold and 18k gold. Our collection of these items for sale includes 621 vintage editions and 1119 modern creations to choose from as well. Finding the perfect 30 carat gemstone may mean sifting through those created during different time periods — you can find an early version that dates to the 18th Century and a newer variation that were made as recently as the 21st Century. Finding an appealing 30 carat gemstone — no matter the origin — is easy, but Alexey Gabilo, GLEAMIRE and Five Star Jewelry each produced a popular version that is worth a look. A 30 carat gemstone can make for a versatile accessory, but a selection from our variety of 1159 diamond versions can add an especially stylish touch. Today, if you’re looking for a round cut version of this piece and are unable to find the perfect match, our selection also includes baguette cut and brilliant cut alternatives. If you’re browsing our inventory for a 30 carat gemstone, you’ll find that many are available today for women, but there are still pieces to choose from for unisex and men.
How Much is a 30 Carat Gemstone?
The price for a 30 carat gemstone starts at $142 and tops out at $607,500 with these rings, on average, selling for $3,892.