Diamond 30 Ct
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14 Karat White Gold Diamond Halo Ring
Located in Washington Depot, CT
cut diamonds in its center (.20 ct. TWT.) and 26 round brilliant cut diamonds (.30 ct. TWT.) on its
Category
20th Century Unknown Engagement Rings
Materials
Diamond, White Gold
14 Karat White Gold Princess Cut Diamond Engagement Ring
Located in Washington Depot, CT
engagement ring features one princess cut diamond (.30 ct.) and 22 round brilliant diamonds set in classic
Category
20th Century Unknown Engagement Rings
Materials
Diamond, White Gold
14 Karat White Gold and Diamond Engagement Ring
Located in Washington Depot, CT
emerald cut diamond (.30 ct.) , 12 round brilliant cut diamonds and 16 baguette diamonds set in classic
Category
20th Century Engagement Rings
Materials
Diamond, White Gold
Deco Ruby Emerald Diamond Pagoda Ring 18 Karat
Located in North Hollywood, CA
, .30 ct; 2 additional, .16 ct each; total rubies .62 ct, color purplish red
STONES: Diamonds, .30 ct
Category
Mid-20th Century Unknown Art Deco Cocktail Rings
Materials
Ruby, White Diamond, Emerald, 18k Gold
30 Ct Aquamarine 3 Ct Sapphires Diamond Ring, 1995
Located in Herzelia, Tel Aviv
Diamond Ring with a 30Ct Aquamarine and 3Ct Sapphires. Massive and fine ring perfectly representing
Category
1990s Cocktail Rings
Materials
Aquamarine, Diamond, Sapphire, 18k Gold
14 Karat White Gold Diamond Engagement Ring '.30 ct.'
Located in Washington Depot, CT
14 Karat White Gold Diamond Engagement Ring Size 6 (.30 ct.)-
This sparkling engagement ring
Category
20th Century Engagement Rings
Materials
Diamond, White Gold
75 Ct Zambian Emerald and 30 Ct Diamond Necklace and Earring Bridal Suite
Located in New York, NY
75 Ct Zambian Emerald and 30 Ct Diamond Necklace and Earring Bridal Suite
Emeralds are Zambians
Category
Early 2000s Drop Necklaces
Materials
Diamond, Emerald, 18k Gold, 14k Gold
ct. 1, 30 Diamonds Onyx Pearl Fashion Gold Ring
Located in Marcianise, Marcianise (CE)
surrounded by diamonds, a gold bow with diamonds on it and a central pearl.
Diamonds 1.30kt
Onyx 1.40 gr
Category
1990s Italian Retro Fashion Rings
Materials
South Sea Pearl, Onyx, Diamond, Yellow Gold, White Gold, 14k Gold
Natural 12 Ct Burma Ruby & 30 Ct Diamond Trio Pin 18 Karat Yellow Gold 78gm
Located in New York, NY
Introducing the exquisite Natural 12 Ct Burma Ruby & 30 Ct Diamond Trio Pin, a truly unique piece
Category
Vintage 1970s Choker Necklaces
Materials
Diamond, Ruby, 18k Gold, Yellow Gold
Stunning Ct 22, 30 of Zambia Emeralds and Diamonds on Earrings
Located in Massafra, IT
So stunning style in 18k gold with 4 pieces of natural Zambia emeralds ct 22,30 and diamonds round
Category
21st Century and Contemporary More Earrings
Materials
Diamond, Emerald, 18k Gold
Cober “Engraved Cluster” with a 1.31 ct Cognac Diamond and 30 Diamonds Ring
By Vincent Cober
Located in OSS, NH
"Engraved Cluster" Ring with 1.31 Carat Cognac Diamond
This is a 1,31 ct. Cognac colored Diamond. VS set in
Category
2010s Dutch Contemporary Cluster Rings
Materials
Diamond, 18k Gold, Yellow Gold
Cober “Engraved Cluster” with a 1.31 ct Cognac Diamond and 30 Diamonds Ring
By Vincent Cober
Located in OSS, NH
"Engraved Cluster" Ring with 1.31 Carat Cognac Diamond
This is a 1,31 ct. Cognac colored Diamond. VS set in
Category
2010s Dutch Contemporary Cluster Rings
Materials
Diamond, 18k Gold, Yellow Gold
18 Kt Gold Necklace & Pendant With 30 ct. Black & White Diamonds & Rubies
Located in Antwerp, BE
Magnificent 18 Kt Gold Necklace & Pendant With 30 ct. Black & White Diamonds & Rubies
Necklace can
Category
21st Century and Contemporary Belgian Artisan Pendant Necklaces
Materials
White Diamond, Ruby, Platinum, Gold
Rose Cut Sliced 30 Ct Blue Sapphire 0.67 Ct Diamonds 14k Yellow Gold Necklace
Located in Los Angeles, CA
: 30.97 Sliced Natural Blue Sapphire and 0.67 ct G SI1 Diamonds
Hallmarks: 14K
Total Weight: 10 Grams
Category
2010s Unknown Pendant Necklaces
Materials
Blue Sapphire
Round Pendant 18k White Gold Blue Vitreous Enamel Guilloche 30 Diamonds 0.15 ct
By Victor Mayer
Located in Pforzheim, DE
enamel, guilloche, 30 diamonds, total 0.15 ct, G VS, diameter app. 12.5 mm
About the creator Victor
Category
21st Century and Contemporary German Contemporary Pendant Necklaces
Materials
Diamond, Enamel, White Gold, 18k Gold
Free Shipping
Dm 0.5 in
Round Pendant Necklace 18k White Gold Red Enamel Guilloche 30 Diamonds 0.15 ct
By Victor Mayer
Located in Pforzheim, DE
vitreous enamel, guilloche, 30 diamonds, total 0.15 ct, G VS, diameter app. 12.5 mm
About the creator
Category
21st Century and Contemporary German Art Deco Pendant Necklaces
Materials
Diamond, 18k Gold, Yellow Gold, Enamel
Free Shipping
Dm 0.5 in L 16.54 in
Round Pendant Necklace 18k White Gold Grey Enamel Guilloche 30 Diamonds 0.15 ct
By Victor Mayer
Located in Pforzheim, DE
vitreous enamel, guilloche, 30 diamonds, total 0.15 ct, G VS, diameter app. 12.5 mm
About the creator
Category
21st Century and Contemporary German Art Deco Pendant Necklaces
Materials
Diamond, 18k Gold, White Gold, Enamel
Free Shipping
Dm 0.5 in L 16.54 in
Round Pendant 18k White Gold Red Vitreous Enamel Guilloche 30 Diamonds 0.15 ct
By Victor Mayer
Located in Pforzheim, DE
enamel, guilloche, 30 diamonds, total 0.15 ct, G VS, diameter app. 12.5 mm
About the creator Victor
Category
21st Century and Contemporary German Art Deco Pendant Necklaces
Materials
Diamond, 18k Gold, Yellow Gold, Enamel
Free Shipping
Dm 0.5 in
Round Pendant Necklace 18k White Gold Green Enamel Guilloche 30 Diamonds 0.15 ct
By Victor Mayer
Located in Pforzheim, DE
enamel, guilloche, 30 diamonds, total 0.15 ct, G VS, diameter app. 12.5 mm
About the creator Victor
Category
21st Century and Contemporary German Art Deco Pendant Necklaces
Materials
Diamond, 18k Gold, Yellow Gold, Enamel
Free Shipping
Dm 0.5 in L 16.54 in
Round Pendant 18k White Gold Grey Vitreous Enamel Guilloche 30 Diamonds 0.15 ct
By Victor Mayer
Located in Pforzheim, DE
enamel, guilloche, 30 diamonds, total 0.15 ct, G VS, diameter app. 12.5 mm
About the creator Victor
Category
21st Century and Contemporary German Art Deco Pendant Necklaces
Materials
Diamond, Enamel, 18k Gold, White Gold
Free Shipping
Dm 0.5 in
Round Pendant Necklace 18k White Gold Blue Enamel Guilloche 30 Diamonds 0.15 ct
By Victor Mayer
Located in Pforzheim, DE
vitreous enamel, guilloche, 30 diamonds, total 0.15 ct, G VS, diameter app. 12.5 mm
About the creator
Category
21st Century and Contemporary German Art Deco Pendant Necklaces
Materials
Diamond, Enamel, 18k Gold, White Gold
Free Shipping
Dm 0.5 in L 16.54 in
Round Pendant 18k White Gold Green Vitreous Enamel Guilloche 30 Diamonds 0.15 ct
By Victor Mayer
Located in Pforzheim, DE
enamel, guilloche, 30 diamonds, total 0.15 ct, G VS, diameter app. 12.5 mm
About the creator Victor
Category
21st Century and Contemporary German Art Deco Pendant Necklaces
Materials
Diamond, Yellow Gold, Enamel, 18k Gold
Free Shipping
Dm 0.5 in
NWT $225, 000 Rare Platinum 30 Ct Gorgeous Blue Ceylon Sapphire Diamond Bracelet
Located in New York, NY
Ceylon Sapphire and Diamond Bracelet. Bracelet is comprised of a Rare Large Gorgeous Emerald Cut Blue
Category
21st Century and Contemporary Tennis Bracelets
Materials
Diamond, Sapphire, Blue Sapphire, Platinum
Amazing Ct 30, 89 of Zambia Emeralds and Diamonds on Pendant/Brooch
Located in Massafra, IT
pieces of Zambia emeralds ct 14,63 + ct 10,01 , two piece of Zambia emeralds ct 1,02 and diamonds ct 5,25
Category
21st Century and Contemporary Art Deco Pendant Necklaces
30 Pointer Each, 14 Ct Single Line Eternity 18 Kt Gold & Diamond Bangle, Single
Located in New York, NY
Single line 30 pointer, 14.4 Ct total diamond weight Contemporary 18 Karat Yellow Gold
Category
2010s Bangles
Materials
Diamond, 18k Gold
Round Pendant 18k White Gold Turquoise Enamel Guilloche 30 Diamonds 0.15 ct G VS
By Victor Mayer
Located in Pforzheim, DE
, guilloche, 30 diamonds, total 0.15 ct, G VS, diameter app. 12.5 mm
About the creator Victor Mayer
Victor
Category
21st Century and Contemporary German Art Deco Pendant Necklaces
Materials
Diamond, 18k Gold, White Gold, Enamel
Free Shipping
Dm 0.5 in
Fine 30 ct. Kunzite, Diamond and 18K yellow Gold Large Vintage Ring, c. 1960.
Located in Aspen, CO
kunzite.
The brilliant cut diamonds are set in white gold. They are estimated to weigh 1 ct. The stones
Category
Mid-20th Century American Cocktail Rings
Materials
Diamond, Kunzite, Yellow Gold
Certified 17..30 Ct of Zambia Emeralds, Diamonds and South Sea Pearl on Pendant
Located in Massafra, IT
natural diamonds of 1.44 carats,F:VS.
A very chic and elegant design.
Handcrafted by artisan goldsmith
Category
21st Century and Contemporary Art Deco Pendant Necklaces
Materials
Diamond, Emerald, South Sea Pearl, 18k Gold
Engagement Ring with Certificate Natural White Diamond 0, 30 Ct G SI1, 18kt Gold
Located in Vicenza, VI
100% Made in Italy.Solitaire Ring, Modern Design.
Gemstone (1x): White Diamond / 0,30 ct / G / SI1
Category
2010s Italian Contemporary Engagement Rings
Materials
White Diamond, Gold, 18k Gold, White Gold
Engagement Ring with Certificate Natural White Diamond 0, 30 Ct G SI1, 18kt Gold
Located in Vicenza, VI
100% Made in Italy.Solitaire Ring, Modern Design.
Gemstone (1x): White Diamond / 0,30 ct / G / SI1
Category
2010s Italian Contemporary Solitaire Rings
Materials
White Diamond, Gold, 18k Gold, White Gold
Engagement Ring with Certificate Natural White Diamond 0, 30 Ct G SI1, 18kt Gold
Located in Vicenza, VI
100% Made in Italy.Solitaire Ring, Modern Design.
Gemstone (1x): White Diamond / 0,30 ct / G / SI1
Category
2010s Italian Contemporary Solitaire Rings
Materials
White Diamond, Gold, 18k Gold, White Gold
Engagement Ring with Certificate Natural White Diamond 0, 30 Ct G SI1, 18kt Gold
Located in Vicenza, VI
100% Made in Italy.Solitaire Ring, Modern Design.
Gemstone (1x): White Diamond / 0,30 ct / G / SI1
Category
2010s Italian Contemporary Engagement Rings
Materials
White Diamond, Gold, 18k Gold, White Gold
Engagement Ring with Certificate Natural White Diamond 0, 30 Ct G SI1, 18kt Gold
Located in Vicenza, VI
100% Made in Italy.Solitaire Ring, Modern Design.
Gemstone (1x): White Diamond / 0,30 ct / G / SI1
Category
2010s Italian Contemporary Engagement Rings
Materials
White Diamond, Gold, 18k Gold, White Gold
Engagement Ring with Certificate Natural White Diamond 0, 30 Ct G SI1, 18kt Gold
Located in Vicenza, VI
100% Made in Italy.Solitaire Ring, Modern Design.
Gemstone (1x): White Diamond / 0,30 ct / G / SI1
Category
2010s Italian Contemporary Engagement Rings
Materials
White Diamond, Gold, 18k Gold, White Gold
Art Deco 2.60 Ct Diamond Twist Platinum Ring
Located in Napoli, IT
Diamonds 1.30 Ct each both 2.60 Ct rated G/H SI/SI2 excellent white minus internal inclusions, sparkly
Category
Vintage 1920s European Art Deco Engagement Rings
Materials
Diamond, Platinum
2.50 Ct Natural Sapphire .70 Ct Diamond Fly Brooch
Located in Napoli, IT
round brilliant cut Diamond s for .70 Ct G VVS/VS, gemstones glow and sparkle for a tremendous effect
Category
Mid-20th Century European Contemporary Brooches
Materials
Diamond, Sapphire, 18k Gold
Art Deco 2.40 Ct. Diamond Platinum Charming Drop earrings
Located in Napoli, IT
glowing sparkle, further complemented by approx . 80 Ct. of old Swiss cut Diamonds adding brilliance and
Category
Early 20th Century European Art Deco Drop Earrings
Materials
Diamond, 18k Gold, Platinum
Edwardian .85 Ct Diamond .35 Ct Sapphire 18 KT Platinum Ring
Located in Napoli, IT
distinction and character
Diamonds are old mine cut . 60 C. total with a .25 Ct the centre – G VVS/VS – high
Category
Antique Early 1900s European Edwardian Cluster Rings
Materials
Diamond, Sapphire, 18k Gold, Platinum
Antique Sapphire Diamond 14K Gold Snake Tubogas Bracelet, circa 1925/30
Located in Goettingen, DE
Antique Sapphire Diamond 14K Gold Snake Tubogas Bracelet, circa 1925/30
Decorative Tubogas gold
Category
Vintage 1920s Late Victorian Cuff Bracelets
Materials
Diamond, Peridot, Sapphire, 14k Gold, Yellow Gold
Free Shipping
W 0.44 in L 7.88 in
3.12 Ct Natural Multi Stones & 0.55 Ct Diamonds 14k Gold Drop Necklace
Located in Los Angeles, CA
Type:3.12 CT Multi Sapphires and 0.55 CT G SI1 Diamonds
Hallmarks: 14K
Total Weight: 4.3 Grams
Category
Early 2000s Unknown Pendant Necklaces
Materials
Diamond, Multi-gemstone
2.25 CT Pink Tourmaline & 0.26 CT Diamonds in 18K Gold Engagement Ring
Located in Los Angeles, CA
)
Hallmarks: 750
Total Weight: 11.4 Grams
Stone Type: 2.25 CT Natural Pink Tourmaline & 0.26 CT G SI1 Diamonds
Category
2010s Unknown Engagement Rings
Materials
Diamond, Tourmaline, 18k Gold
Art Deco 13.10 Ct Diamond 2.80 Ct Natural Ruby 18 KT Bracelet
Located in Napoli, IT
cut diamonds totaling approx 11.00 Ct (H/I-VS/SI) – 30 round faceted cut natural rubies totaling
Category
Vintage 1930s European Art Deco Link Bracelets
Materials
Diamond, Ruby, 18k Gold
Art Deco Certified 7.14 Ct No Heat Sapphire Diamond Platinum Ring
Located in Napoli, IT
1925/30 ca making it even more interesting and rare, crowned by a 7.14 CT Natural No Heat Sapphire
Category
Vintage 1920s European Art Deco Engagement Rings
Materials
Diamond, Sapphire, Platinum
0.96 Ct. Natural Diamonds Platinum Wedding Ring
Located in Houston, TX
(30) round brilliant cut natural diamonds:
Measurements: 1.95mm - 2.15mm in diameter x ~1.25mm in
Category
21st Century and Contemporary Wedding Rings
Materials
Diamond, Platinum
2.57 CT Ceylon Sapphires & 1.09 CT Diamonds in 18K White Gold Engagement Ring
Located in Los Angeles, CA
2.57 CT Ceylon Sapphires & 1.09 CT Diamonds in 18K White Gold Engagement Ring
Top: 17.5 mm
Band
Category
2010s Unknown Engagement Rings
Materials
Diamond, Sapphire, 18k Gold
1.54 CT Natural Blue Sapphire 0.43 CT Diamonds 18K White Gold Flower Earrings
Located in Los Angeles, CA
& Color H-L Clarity SI-I 0.43 CT Diamonds
Condition: New
Estimated Price: $8410
Stock Number: E2660
Category
Antique Early 17th Century North American Drop Earrings
Materials
Diamond, Blue Sapphire, White Gold
Free Shipping
H 0.98 in W 0.42 in
2.78 CT Ceylon Sapphires & 1.34 CT Diamonds in 18K White Gold Engagement Ring
Located in Los Angeles, CA
)
Hallmarks: 750
Total Weight: 5.7 Grams
Stone Type: 2.78 CT Natural Ceylon Sapphires & 1.34 G VS2 CT Diamonds
Category
2010s Unknown Engagement Rings
Materials
Diamond, Sapphire, 18k Gold
18 kt. Solid Gold Ring with 2.36 ct. Diamonds and 2 ct. Emerald
Located in Antwerp, BE
.
Emeralds and Diamonds are from Amazing Quality and Color, Ring is completely hand made !
Diamonds: 30
Category
20th Century European Artisan Fashion Rings
Materials
Diamond, Emerald, Gold, 18k Gold
Estate 2.70 Ct Five Stone Diamond ring
Located in Napoli, IT
. 30 Ct. Ct. 30 , totaling 2.20 Ct and .50 Ct. more for the little Diamonds in surround – Diamond TCW
Category
Late 20th Century European Contemporary Engagement Rings
Materials
Diamond, 18k Gold
Cluster Earring, with Diamonds Total Carat 8.98 Ct, Emeralds Total Carat Ct 4.90
Located in Rome, IT
0.48 ct
N ° 30 oval cut emeralds total weight 4.90 ct
Total Carat Diamonds: ct 8.98
Total Carat
Category
21st Century and Contemporary Italian Retro Clip-on Earrings
Materials
Diamond, Emerald, White Gold
Free Shipping
W 0.99 in L 1.38 in
Georgian 1.40 Ct Diamond Rare Comet Brooch
Located in Napoli, IT
Diamonds, G/HI VVS/SI
The brooch 30 x 10 mm with 2.4 grams
1835 ca
Distinctive, very rare and collectable
Category
Antique 1830s European Georgian Brooches
Materials
Diamond, Silver, 18k Gold
1.28 CT African Emerald & 0.79 CT Diamonds in 18K White Gold Engagement Ring
Located in Los Angeles, CA
)
Hallmarks: 750
Total Weight: 4.4 Grams
Stone Type: 2.14 CT Natural Emerald & 0.89 G VS2 CT Diamonds
Category
2010s Unknown Engagement Rings
Materials
Diamond, Emerald, 18k Gold
White 3 Ct Ceylon Sapphires & 1.48 Ct Diamonds In 18k Gold Engagement Ring
Located in Los Angeles, CA
)
Hallmarks: 750
Total Weight: 6 Grams
Stone Type: 3.01 CT Natural Ceylon Sapphires & 1.48 G VS2 CT Diamonds
Category
2010s Unknown Engagement Rings
Materials
Diamond, Blue Sapphire, 18k Gold
22 Ct Natural Zambian Emerald & 3.60 Ct Pear shape Diamond Stud Earrings, 14KWG
Located in New York, NY
22 Ct Natural Zambian Emerald & 3.60 Ct Pear shape Diamond Stud Earrings,14KWG
This magnificent
Category
2010s North American Stud Earrings
Materials
Diamond, Emerald, 14k Gold
14.80 Ct Kaleidoscopic Australian Opal Diamond Pendant
Located in Napoli, IT
Diamonds, assay stamped with metal content, carat weight for Diamonds and Opal
Pendant is 30 x 21 mm. (h. x
Category
21st Century and Contemporary European Contemporary Pendant Necklaces
Materials
Diamond, Opal, 18k Gold
Art Deco 48.83 Ct Aquamarine 4.25 Ct Diamond Rare 18 Kt /Plat Necklace
Located in Napoli, IT
work
Amazing workmanship
Diamonds are 38 rose cut and 121 round cut diamonds totalling approx 4.25 Ct
Category
Vintage 1930s European Art Deco Link Necklaces
Materials
Aquamarine, Diamond, 18k Gold, Platinum
Free Shipping
H 2.37 in W 1.11 in L 16.54 in
Retro 1.73 Ct Diamond Bold buckle ring
Located in Napoli, IT
transitional cut diamonds with the bigger one of .23 Ct being graded H/VS and further complemented by 38 old
Category
Vintage 1930s Italian Retro Cocktail Rings
Materials
Diamond, 18k Gold
Art Deco 1.05 Ct Diamond G VVS 18 Kt Platinum Navette Ring
Located in Napoli, IT
Diamonds are true quality all matched for colour and clarity; being G VVS – . 65 Ct the bigger three
Category
Vintage 1920s Art Deco Cluster Rings
Materials
Diamond, 18k Gold, Platinum
GIA Certified 2.15 CT Diamond Platinum Engagement Ring
Located in Westport, CT
-sided diamond platinum setting, with 30 round cut diamonds weighing a total of approximately 1.25 CT, H
Category
21st Century and Contemporary Engagement Rings
Materials
Diamond, Platinum
Art Deco 4.50 Ct Diamond Cornucopia Platinum Earrings
Located in Napoli, IT
quality:28 early brilliant cut diamonds totalling approx 2.30 Ct (F/G/VVS/VS) – 72 old Swiss cut diamonds
Category
Vintage 1920s European Art Deco Lever-Back Earrings
Materials
Diamond, Platinum
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Diamond 30 Ct For Sale on 1stDibs
Surely you’ll find the exact diamond 30 ct 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 142 vintage editions and 336 modern creations to choose from as well. Making the right choice when shopping for a diamond 30 ct may mean carefully reviewing examples of this item dating from different eras — you can find an early iteration of this piece from the 19th Century and a newer version made as recently as the 21st Century, both of which have proven very popular over the years. A diamond 30 ct from LB Exclusive, House of R&D and Diamonds Mine — each of whom created a beautiful version of this treasured accessory — is worth considering. A round cut version of this piece has appeal, but there are also oval cut and mixed cut versions for sale. When shopping for a diamond 30 ct, you’ll find that there are less available pieces for unisex or men today than there are for women.
How Much is a Diamond 30 Ct?
The price for a diamond 30 ct starts at $285 and tops out at $160,000 with these rings, on average, selling for $3,089.
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