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Platinum And 18kt

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Platinum and 18kt Rose Gold Fancy Diamond Ring
By Diana M. Jewels
Located in New York, NY
Platinum and 18kt rose gold fancy diamond ring with center fancy brown 5.03ct marquee shape set in
Category

21st Century and Contemporary Fashion Rings

Materials

Diamond, Platinum, Rose Gold

Platinum and 18kt Diamond Engagement Ring with Fancy Yellow
By Diana M. Jewels
Located in New York, NY
Platinum and 18kt diamond engagement ring with 2.51cts fancy yellow vs2 (mqc175) set in a split
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum, White Gold

Platinum and 18kt Yellow Gold Fancy Yellow Diamond Earrings
By Diana M. Jewels
Located in New York, NY
Platinum and 18kt yellow gold fancy yellow diamond earrings, features 10.76ct of two radiant
Category

21st Century and Contemporary Dangle Earrings

Materials

Yellow Diamond, White Gold, Yellow Gold, Platinum

Platinum and 18kt Magnificent Earrings with Fancy Yellow Diamonds
By Diana M. Jewels
Located in New York, NY
Platinum and 18kt magnificent diamond earrings. These earrings contain 6.85ct of fancy yellow
Category

21st Century and Contemporary Dangle Earrings

Materials

Diamond, White Gold, Platinum

Platinum and 18kt Yellow Gold Earrings with Fancy Yellow Diamond
By Diana M. Jewels
Located in New York, NY
Platinum and 18kt yellow gold fancy yellow diamond earrings, gia certified features 4.54ct of two
Category

21st Century and Contemporary Dangle Earrings

Materials

Yellow Diamond, Yellow Gold, Platinum

Platinum and 18kt Rose Gold Pink and White Diamonds Ring
By Diana M. Jewels
Located in New York, NY
Platinum and 18kt rose gold diamond ring with center fancy brown 5.11ct (psc288) pear shape set in
Category

21st Century and Contemporary Fashion Rings

Materials

White Diamond, Platinum, Rose Gold

Platinum and 18kt Yellow Gold Ring with Fancy Yellow Diamond
By Diana M. Jewels
Located in New York, NY
Platinum and 18kt yellow gold fancy yellow diamond ring, features EGL certified (radc946)7.65 fy
Category

21st Century and Contemporary Engagement Rings

Materials

Yellow Diamond, Yellow Gold, Platinum, White Gold

Platinum and 18KT Pink Gold Ring with Pink and White Diamond
By Diana M. Jewels
Located in New York, NY
Platinum and 18kt pink gold pink diamond ring with center gia certified .80 vp-si2 ( radc 921) set
Category

21st Century and Contemporary Engagement Rings

Materials

White Diamond, White Gold, Platinum, Gold

Platinum and 18KT Yellow Gold Ring with Center Diamond & Natural Fancy Yellow
By Diana M. Jewels
Located in New York, NY
Platinum and 18kt yellow gold custom made ring with center diamond 5.96cts natural fancy yellow vs1
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Yellow Gold, Platinum

Platinum and 18KT Yellow Gold Engagement Ring with Center Cushion Cut Diamond
By Diana M. Jewels
Located in New York, NY
Platinum and 18kt yellow gold diamond engagement ring with GIA certified fancy yellow center
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Yellow Gold, Platinum

Platinum and 18kt Yellow Gold Handmade Ring with Diamonds & Cushion Fancy Yellow
By Diana M. Jewels
Located in New York, NY
Platinum and 18kt yellow gold diamond handmade ring with 10.05ct cushion center fancy yellow si2
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Platinum, Yellow Gold

Platinum and 18kt Yellow Gold Fancy Diamond Ring with White and Pink Diamonds
By Diana M. Jewels
Located in New York, NY
Platinum and 18kt yellow gold fancy diamond ring with center fancy brown 5.52ct (rdc4057) round
Category

21st Century and Contemporary Fashion Rings

Materials

Pink Diamond, Yellow Gold, Platinum

Alishan Limited Edition Platinum and 18 Kt Gold Spider & Web Pearl and Diamond
Located in Los Gatos, CA
Alishan Limited edition Platinum and 18kt Gold Spider and the Web Pearl and Diamond Pendant / Pin
Category

21st Century and Contemporary American Artisan Brooches

Materials

White Diamond, Pearl, Black Pearl, Gold, 18k Gold, Yellow Gold

DIANA M. Platinum and 18 kt yellow gold engagement ring 12.14CT FY VS2
By Diana M. Jewels
Located in New York, NY
Platinum and 18 kt yellow gold engagement ring featuring a center 12.14 ct GIA certified (FY VS1
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Yellow Gold, Platinum

Coral, Diamonds, Sapphires, Onyx, Agate, Platinum and 18 Kt White Gold Brooch.
Located in Marcianise, Marcianise (CE)
, ITEMS AT AUCTIONS ,ONGOING PROMOTIONS AND ITEMS ON SALES. Beautiful basket brooch in platinum and 18 kt
Category

Vintage 1960s Italian Retro Brooches

Materials

Agate, Coral, Diamond, Onyx, Sapphire, 18k Gold, White Gold, Platinum

Diana M. Platinum and 18 kt yellow gold emerald diamond ring featuring 13.50em
By Diana M. Jewels
Located in New York, NY
Platinum and 18 kt yellow gold emerald diamond ring featuring a 13.50 ct cushion cut emerald with 2
Category

21st Century and Contemporary American Modern Fashion Rings

Materials

Diamond, Emerald, 18k Gold, Yellow Gold, Platinum

Diana M. Platinum and 18 kt yellow gold emerald and diamond ring featuring 11.22
By Diana M. Jewels
Located in New York, NY
Platinum and 18 kt yellow gold emerald and diamond ring featuring a 11.22 ct cushion cut green
Category

21st Century and Contemporary North American Modern Fashion Rings

Materials

Diamond, Emerald, Yellow Gold, Platinum

Two tone platinum and 18KT yellow gold engagement ring royal retro ring
Located in Jupiter, FL
Two tone diamond ring in platinum and 18KT yellow gold, beautiful retro ring. GOLD: 18KT gold and
Category

20th Century Engagement Rings

Materials

Yellow Gold, Platinum

DIANA M. Platinum and 18 kt yellow gold engagement ring center 9.17 FY VVS RAD
By Diana M. Jewels
Located in New York, NY
Platinum and 18 kt yellow gold engagement ring featuring a center (FY VVS2) 9.17 ct radiant cut
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Platinum

Diana M. Platinum and 18 kt yellow gold emerald diamond ring featuring a 13.69
By Diana M. Jewels
Located in New York, NY
Platinum and 18 kt yellow gold emerald diamond ring featuring a 13.69 ct emerald alongside 2 pear
Category

21st Century and Contemporary North American Modern Fashion Rings

Materials

Diamond, Emerald, Yellow Gold, Platinum

Garnet Diamond Ring Cocktail Modern Minimalist Ring Platinum and 18kt Gold
Located in Jupiter, FL
Stunning and rare rhodolite garnet ring made in platinum and 18Kt yellow gold with natural diamonds
Category

21st Century and Contemporary North American Modern Cocktail Rings

Materials

Diamond, Tsavorite, Gold, 18k Gold, Platinum, White Gold

Diana M. Platinum and 18kt yellow gold emerald diamond ring a 8.78 ct emerald
By Diana M. Jewels
Located in New York, NY
, elegantly set in a luxurious combination of platinum and 18kt yellow gold. Flanking the emerald are two pear
Category

21st Century and Contemporary American Modern Fashion Rings

Materials

Emerald, Diamond, Yellow Gold, Platinum

Diana M. Platinum and 18 kt yellow gold emerald diamond ring featuring a 9.11 ct
By Diana M. Jewels
Located in New York, NY
Platinum and 18 kt yellow gold emerald diamond ring featuring a 9.11 ct green emerald with 1.50 cts
Category

21st Century and Contemporary American Modern Fashion Rings

Materials

Diamond, Emerald, 18k Gold, Platinum, Yellow Gold

Diana M. Platinum and 18 kt yellow gold engagement ring 3.03 FY VS2 EM CUT
By Diana M. Jewels
Located in New York, NY
Platinum and 18 kt yellow gold engagement ring featuring a center 3.03 ct GIA certified (FY VS2
Category

21st Century and Contemporary American Modern Engagement Rings

Diamond, Platinum and 18kt Rose Gold Charms Bangle Bracelet
Located in Firenze, IT
The wide, gold bangle bracelet top featuring five platinum art deco charms, in the animal form
Category

Vintage 1930s French Art Deco Bangles

Materials

Diamond, 18k Gold, Rose Gold, Platinum

Platinum and 18KT Gold, 2.17Ct. Diamond, 1.13Ct. Sapphire & .89Ct. Emerald Ring
By Cellini
Located in New York, NY
This beautiful Platinum set cocktail ring designed by Cellini Jewelers NYC, centers two pear shaped
Category

Vintage 1980s Italian Retro Cluster Rings

Materials

Diamond, Emerald, Sapphire, Gold, Platinum

Michael Bondanza Platinum and 18KT YG, 10.24Ct. Diamond Venetian Collar Necklace
By Michael Bondanza
Located in New York, NY
This platinum and 18 karat yellow gold collar necklace is an iconic representation of the artist
Category

1990s American Modern Choker Necklaces

Materials

Diamond, 18k Gold, Yellow Gold, Platinum

Diamond Engagement Ring with Platinum and 18kt Pink Gold Halo Setting
By Diana M. Jewels
Located in New York, NY
Pink Diamonds And One Row Of White Diamonds (.80ct) In Platinum And18kt Pink Gold Halo Setting
Category

21st Century and Contemporary Engagement Rings

Materials

Diamond, Yellow Gold, Gold, Platinum

Platinum and 18KT Dome Ring with 6.85Ct. Cabochon Sapphire, and 2.78Ct. Diamonds
Located in New York, NY
A lovely classic style platinum ring centering a 6.84 carat oval cabochon blue sapphire. This domed
Category

1990s Unknown Contemporary Cocktail Rings

Materials

Sapphire, Diamond, Blue Sapphire, 18k Gold, Platinum

Michael Bondanza Platinum and 18KT Yellow Gold Bracelet with Rubies and Diamonds
By Michael Bondanza
Located in New York, NY
This platinum and 18 karat bracelet is an iconic representation of the artist, Michael Bondanza
Category

Early 2000s American Art Deco Cuff Bracelets

Materials

Diamond, Ruby, 18k Gold, Yellow Gold, Platinum

German 1935 Art Deco Undulated Patterns Collar Necklace Platinum and 18Kt Gold
Located in Miami, FL
solid platinum .900/.999, with accents in 18 karat yellow gold. Fitted with a discrete push box lock
Category

Vintage 1930s German Art Deco Choker Necklaces

Materials

18k Gold, Yellow Gold, Platinum, Gold

Vacheron Constantin Platinum and 18Kt. Gold Ladies Evening Watch Circa 1920's
By Vacheron Constantin
Located in Long Beach, CA
/ MATERIAL: Platinum Head / 18Kt. Bracelet CIRCA / YEAR: 1920's DIMENSIONS / SIZE: Length 25mm x Width 14mm
Category

Vintage 1920s Swiss Art Deco Wrist Watches

Platinum and 18kt White Gold Earrings with South Sea Pearls and 3.07ct Diamonds
Located in New York, NY
marquis diamonds capping a hanging south sea pearl. The platinum earrings are designed so that the bottom
Category

1990s Unknown Modern Drop Earrings

Materials

Diamond, Cultured Pearl, 18k Gold, White Gold, Platinum

Platinum and 18 KT Yellow Gold 3.74 Ct Radiant Cut Fancy Yellow Diamond Ring
Located in Palm Desert, CA
Set in Platinum and 18 karat yellow gold, weighing 11 grams, is a 3.74 carat Radiant Cut Fancy
Category

2010s More Rings

Materials

Diamond, Yellow Diamond, 18k Gold, Yellow Gold, Platinum

Rare Platinum and 18KT Gold Glittering 5CT Fancy Cognac Diamond Deco Style Ring
Located in New York, NY
The Following Item we are offering is a Rare Important Radiant 18KT Gold and Platinum Elaborate
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Gold, 18k Gold, Platinum

Jacques Kreisler & Co 1920 Necklace In Platinum And 18Kt White Gold With Pearls
By Kreisler
Located in Miami, FL
, with intricated links in solid white gold of 18 karats and platinum. They were designed with machine
Category

Early 20th Century American Art Deco Link Necklaces

Materials

Pearl, Natural Pearl, Gold, 18k Gold, White Gold, Platinum

Estate circa 1930s Modern European Cut Diamond Ring Set in Platinum and 18kt W
Located in Los Gatos, CA
This exquisite Estate Diamond Ring is adorned with 33 Diamonds, with a total carat weight of 2.10cts. It includes 30 single cut Diamonds and two brilliant cut Diamonds, with a statem...
Category

Antique 19th Century Art Deco Cocktail Rings

Materials

Diamond, 18k Gold, White Gold, Platinum

Designer Cluster Ring in Platinum and 18Kt Yellow Gold 3.78 Cts D VS Diamonds
Located in Miami, FL
solid yellow gold of 18 karats, with the surfaces finished with high polish. The upper part is made up
Category

Early 2000s French Modern Cluster Rings

Materials

Diamond, White Diamond, Gold, 18k Gold, Yellow Gold, Platinum

Emrich & Schorsch 1920 New York Graduated in Platinum and 18kt Gold with 4.42 Ct
Located in Miami, FL
exceptional piece has been crafted during the art deco period in solid .900/.999 platinum and yellow gold of
Category

Vintage 1920s American Art Deco Chain Necklaces

Materials

Diamond, White Diamond, Gold, 18k Gold, Yellow Gold, Platinum

Impressive 34.75 Carats Diamonds Platinum 18 Kt. White Gold Cocktail Ring
Located in Rome, IT
Platinum and 18 kt. white gold ring with navette, baguettes and round-cut diamonds. Navette diamond
Category

Vintage 1940s French Art Deco Cocktail Rings

Materials

Diamond, Platinum, 18k Gold, White Gold

Retro Diamond Gold Platinum Necklace
Located in Firenze, IT
chain. Mounted in platinum and 18Kt gold Lenght: 39 cm
Category

Vintage 1950s Italian Retro Drop Necklaces

Materials

Diamond, 18k Gold, Yellow Gold, Platinum, Gold

Diana M. Platinum Engagement 3 Stone Ring With 5.16 Fancy Yellow SI1 Radiant
By Diana M. Jewels
Located in New York, NY
Platinum and 18kt diamond engagement ring with center diamond 5.16ct Fancy Yellow SI1 GIA
Category

21st Century and Contemporary American Modern Three-Stone Rings

Materials

White Diamond, Yellow Diamond, 18k Gold, Yellow Gold, Platinum

Platinum GIA Certified 2.51 Carat Fancy Yellow-VS2 Diamond Ring
By Diana M. Jewels
Located in New York, NY
Platinum and 18kt diamond engagement ring with 2.51 cts fancy yellow vs2 Set in a split shank
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

White Diamond, Yellow Diamond, Platinum

Art Deco 7.80 Ct Diamond Spray Lobe Earrings Platinum 18 KT
Located in Napoli, IT
ear rendered of solid Platinum and 18 KT backs Made for pierced ears with large clip on to fit the
Category

Vintage 1930s European Art Deco Lever-Back Earrings

Materials

Diamond, 18k Gold, Platinum

Diana M. Platinum and 18 (FY VVS2) 1.78 ct radiant cut diamond with 2 trapezoid
By Diana M. Jewels
Located in New York, NY
Platinum and 18 kt yellow gold engagement ring featuring a center (FY VVS2) 1.78 ct radiant cut
Category

21st Century and Contemporary American Modern Engagement Rings

Materials

Diamond, Platinum

Diana M. Vivid Diamond 23.88ct VS2 GIA With 2 trillants 1.56cts Set In Platinum
By Diana M. Jewels
Located in New York, NY
Platinum and 18 kt yellow gold engagement ring featuring a center (FIY VS2) 23.88 ct Radiant cut
Category

21st Century and Contemporary American Modern Three-Stone Rings

Materials

Diamond, Platinum

David Webb 18 Karat Yellow Gold and Platinum Green Tourmaline with Diamond Ring
By David Webb
Located in New York, NY
Platinum and 18KT Yellow Gold with Green Tourmaline measuring 15.23mm x 13.97mm x 9.40 mm with 32
Category

Vintage 1980s American More Rings

Materials

Diamond, Tourmaline, 18k Gold, Platinum

Diana M. Platinum Emerald Diamond Ring 10.13ct Set With Fancy Yellow Diamonds
By Diana M. Jewels
Located in New York, NY
Platinum and 18 kt yellow gold emerald and diamond ring featuring a 10.13 ct green emerald
Category

21st Century and Contemporary North American Modern Cocktail Rings

Materials

Yellow Diamond, Emerald, Platinum

10.30 Carat GIA Certified Fancy Brown Diamond Ring
Located in New York, NY
Platinum and 18KT Magnificent diamonds ring with 10.30 carats Fancy Orange Brown, set with 1.60
Category

21st Century and Contemporary American Bridal Rings

Materials

Brown Diamond, Platinum

Antique English Diamond Royal Engineers Badge Brooch Platinum 18 Kt gold
Located in Napoli, IT
Royal Engineers Collectable, antique 1920 ca – English Finely made of Platinum 18 KT gold detailed
Category

Vintage 1920s European Art Deco Brooches

Materials

Diamond, Gold, 18k Gold, Platinum

2.14ct Fancy Yellow Radiant VS2 GIA Ring
Located in New York, NY
- Classic three stone ring with a 2ct rectangular Fancy Yellow Radiant - Set in Platinum and 18kt
Category

2010s American Three-Stone Rings

Materials

Diamond, Yellow Diamond, 18k Gold, Platinum

3.46ct Fancy Yellow Cushion Diamond Ring
Located in New York, NY
Well laid out and lively Fancy Yellow Cushion set in Platinum and 18kt Yellow Gold with 0.40ct of D
Category

2010s Three-Stone Rings

Materials

Yellow Diamond, Yellow Gold, Platinum

Platinum & 18kt Yellow Gold Flamingo Brooch / Pendant Diamonds, Emeralds, Ruby
Located in Antwerp, BE
Huge Dazzling Platinum & 18kt Yellow Gold Flamingo Brooch / Pendant With Diamonds, Emeralds, Ruby
Category

21st Century and Contemporary Artisan Brooches

Materials

Diamond, Emerald, Onyx, Ruby, Yellow Gold, Platinum

Magnificent GIA Certified Diamond Gold Platinum Flower RIng
Located in New York, NY
Carats of Micropave round diamonds around in Platinum and 18KT Yellow Gold
Category

21st Century and Contemporary American Cluster Rings

Materials

Diamond, Platinum

3 Carat Fancy Yellow Oval Diamond Halo Ring
Located in New York, NY
Juicy 3ct Fancy Yellow Oval full of color, no bow tie and amazing shine Set in a Platinum and 18kt
Category

2010s Fashion Rings

Materials

Yellow Diamond, Yellow Gold, Platinum

5 Carat Fancy Yellow Radiant VVS2 GIA Ring
Located in New York, NY
Well made and laid out 5ct Fancy Yellow long radiant set in platinum and 18kt YG with 0.82ct of F
Category

2010s Three-Stone Rings

Materials

Yellow Diamond, Yellow Gold, Platinum

Michael Bondanza Platinum and 18 Karat Gold Heat Wave Huggie Earring
By Michael Bondanza
Located in New York, NY
showcase intricately detailed platinum and 18kt yellow gold. They measure apprx. 1" in length Earrings
Category

1990s American Modern Hoop Earrings

Materials

18k Gold, Platinum

Diana M. 14.89 Fancy Yellow VVS2 GIA Certified Ring
By Diana M. Jewels
Located in New York, NY
Magnificent Platinum and 18kt Yellow gold fancy yellow diamond engagement ring with center GIA
Category

21st Century and Contemporary American Engagement Rings

Materials

Diamond, Yellow Diamond, Platinum

Diana M. 15.03 Fancy Intense Yellow VS2 Diamond Engagement Ring
By Diana M. Jewels
Located in New York, NY
Magnificent platinum and 18kt yellow gold fancy yellow diamond engagement ring with center GIA
Category

21st Century and Contemporary American Engagement Rings

Materials

Agate, Diamond, Platinum

3.17ct Light Yellow Radiant VVS2 GIA Ring
Located in New York, NY
GIA U-V color rectangular radiant Great spread and life! Set in a Platinum and 18kt Yellow Gold
Category

2010s Three-Stone Rings

Materials

Yellow Diamond, Yellow Gold, Platinum

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Platinum And 18kt For Sale on 1stDibs

Find the exact platinum and 18kt you’re shopping for in the variety available on 1stDibs. Each design created in this style — which was crafted with great care and often made from platinum, gold and 18k gold — can elevate any look. Our collection of these items for sale includes 131 vintage editions and 46 modern creations to choose from as well. Making the right choice when shopping for a platinum and 18kt 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. Finding an appealing platinum and 18kt — no matter the origin — is easy, but Diana M. Jewels, Julius Cohen and Robert Guyon each produced a popular version that is worth a look. A platinum and 18kt can make for a versatile accessory, but a selection from our variety of 98 diamond versions can add an especially stylish touch. A brilliant cut version of this piece has appeal, but there are also round cut and old european cut versions for sale. Most of our platinum and 18kt for sale are for women, but there are 57 pieces available to browse for men.

How Much is a Platinum And 18kt?

The price for a platinum and 18kt starts at $466 and tops out at $3,500,000 with these rings, on average, selling for $9,785.
Questions About Platinum And 18kt
  • 1stDibs ExpertJune 30, 2023
    Whether 18-karat gold is valuable depends on a variety of factors. The price of gold per gram fluctuates with the market for gold. If the gold in question refers to a piece of jewelry, factors under consideration would include the style of the piece, if the accessory features any gemstones and what the gems are, where it was made, its condtion and more. A certified appraiser can evaluate 18-karat gold jewelry to determine its value. On 1stDibs, shop a collection of 18-karat gold jewelry from some of the world's top sellers.