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Tiffany & Co Estate Swiss Army Pocket Knife 18k Gold + Silver
By Tiffany & Co.
Located in Brooklyn, NY
Authentic Tiffany & Co Estate Swiss Army Pocket Knife 18k Gold + Silver TIF595
This elegant
Category
1990s American Vanity Items
Materials
18k Gold, Silver
Sculptural Handcrafted Mermaid Knife, 18k Rose Gold, Layered Damast, Diamonds
Located in Hamburg, DE
Masterfully Handcrafted Mermaid Collectors Knife "Galea" is a sight to behold.
-Figure handmade of
Category
21st Century and Contemporary German Modern Figurines and Sculptures
Materials
Diamond, Sapphire, 18k Gold, Rose Gold
Free Shipping
W 0.52 in L 4.93 in
Tiffany & Co Estate Pocket Knife with Key chain 18k Silver
By Tiffany & Co.
Located in Brooklyn, NY
Authentic Tiffany & Co Estate Pocket Knife with Key chain 18k Silver TIF600
This elegant Authentic
Category
1990s American Vanity Items
Materials
18k Gold, Silver
Tiffany & Co Estate Pocket Knife with Key chain 18k Silver
By Tiffany & Co.
Located in Brooklyn, NY
Authentic Tiffany & Co Estate Pocket Knife with Key chain 18k Silver TIF599
This elegant Authentic
Category
1990s American Vanity Items
Materials
Silver, 18k Gold
H.Stern 18k Yellow Gold Triple Row Knife Edge Band Ring
By H. Stern
Located in Boca Raton, FL
Brand: H.Stern
Hallmark: 750 S
Material: 18k yellow gold
Ring Size: 6
Measurement: front of
Category
21st Century and Contemporary Brazilian Modern Band Rings
Materials
18k Gold, Yellow Gold
NEW 18k Gold 1.10ct GIA Princess Diamond Solitaire Knife Edge Engagement Ring
Located in Montclair, NJ
This elegant, brand new and custom designed diamond engagement ring is crafted in solid 18k white
Category
2010s American Engagement Rings
Materials
Diamond, White Gold, 18k Gold
18k Gold 2.07ctw GIA Oval Brilliant Ruby Diamond Halo Knife Edge Engagement Ring
Located in Montclair, NJ
This elegant brand new ruby and diamond halo ring is crafted in solid 18k yellow gold and features
Category
2010s American Engagement Rings
Materials
Diamond, Ruby, 18k Gold
Antique Victorian 18K Yellow Gold French Paste Knife Edge Bangle Bracelet
Located in Great Neck, NY
Beautiful Antique Victorian 18K Yellow Gold French Paste Knife Edge Bangle Bracelet. This gorgeous
Category
Antique 18th Century Unknown Victorian Bangles
Materials
Yellow Gold
Black and White Diamond Knife Edge Twist Ring in 18K White and Yellow Gold
Located in London, GB
Asymmetric 18ct yellow gold, black and white diamond ring with a knife edge twisted band. A strip
Category
Early 2000s French Modern Fashion Rings
Materials
White Diamond, Black Diamond, Diamond, Yellow Gold, 18k Gold
Ruby Knife Edge Open Ring
Located in Aspen, CO
This contemporary piece is composed of 6 baguette cut rubies and 18 karat rose gold. Its knife edge
Category
2010s More Rings
Sapphire Knife Edge Open Ring
Located in Aspen, CO
This contemporary piece is composed of 6 baguette cut sapphires and 18 karat white gold. Its knife
Category
2010s More Rings
Pinstripe Strength Knife Edge Diamond Earring
By Ri Noor
Located in Houston, TX
Highly polished 18k yellow gold with 112 hand-set Brilliant Cut diamonds set in a pinstripe pattern
Category
2010s Hoop Earrings
Pinstripe Strength Knife Edge Diamond Ring
By Ri Noor
Located in Houston, TX
Highly polished 18k yellow gold with 112 hand-set Brilliant Cut diamonds set in a pinstripe pattern
Category
2010s Bridal Rings
Pinstripe Strength Knife Edge Diamond Ring
By Ri Noor
Located in Houston, TX
Highly polished 18k yellow gold with 112 hand-set Brilliant Cut diamonds set in a pinstripe pattern
Category
2010s Bridal Rings
Faye Kim 18 Karat Gold Knife Edge Link Bracelet
By Faye Kim
Located in Westport, CT
A one-of-a-kind stunner, Faye Kim's handcrafted 18 Karat Gold Knife Edge Link Bracelet is quite
Category
2010s American Contemporary Link Bracelets
Materials
Gold, 18k Gold
Pinstripe Strength Knife Edge Diamond Bangle Bracelet
By Ri Noor
Located in Houston, TX
Highly polished 18k yellow gold with 320 hand-set Brilliant Cut diamonds set in a pinstripe pattern
Category
2010s Bangles
Pinstripe Strength Knife Edge Diamond Bangle Bracelet
By Ri Noor
Located in Houston, TX
Highly polished 18k yellow gold with 320 hand-set Brilliant Cut diamonds set in a pinstripe pattern
Category
2010s Cuff Bracelets
Coral Paper Knife Diamonds Emeralds 18 Karat Yellow Gold
Located in Marcianise, IT
message to solve the problem.
Paper knife 18 karat yellow gold and 800 thousandths silver. Antique piece
Category
Vintage 1950s Italian Artisan Desk Accessories
Materials
Diamond, Coral, Emerald, Yellow Gold, 18k Gold, Silver
Pinstripe Strength Chubby Knife Edge Diamond Ring
By Ri Noor
Located in Houston, TX
Highly polished 18k yellow gold with 224 hand-set Brilliant Cut diamonds set in a pinstripe pattern
Category
2010s Cocktail Rings
Diamond Knife Edge Open Ring Regular price
Located in Aspen, CO
This contemporary piece is composed of 6 baguette cut diamonds and 18 karat white gold. Its knife
Category
2010s More Rings
RUCHI Diamond Yellow Gold Knife-Edge Triangle Dangle Earrings
By Ruchi New York
Located in New York, NY
18K Yellow Gold
Diamonds: 2.60 carats
Category
2010s Hong Kong Contemporary Dangle Earrings
Materials
Diamond, Gold, 18k Gold, Yellow Gold
Pinstripe Strength Knife Edge Diamond Chubby Bangle Bracelet
By Ri Noor
Located in Houston, TX
Highly polished 18k yellow gold with hand-set Brilliant Cut diamonds set in a pinstripe pattern
Category
2010s Bangles
Materials
Diamond
Knife Edge Solitaire Diamond Engagement Ring in 18 Karat Gold
Located in Towson, MD
One 18 karat white gold cathedral knife edge solitaire diamond engagement ring, set with one 0.65
Category
21st Century and Contemporary Contemporary Engagement Rings
Materials
Diamond, Gold, 18k Gold, White Gold
Pinstripe Strength Knife Edge Diamond Earring White Gold
By Ri Noor
Located in Houston, TX
Highly polished 18k White Gold gold with 112 hand-set Brilliant Cut diamonds set in a pinstripe
Category
2010s Hoop Earrings
Knife Edger Stacking Diamond and Topaz White Gold Bangle Bracelet
Located in Beverly Hills, CA
Beautiful stacking diamond and topaz bangle bracelet with a stylish knife edge. The bangle has 44
Category
21st Century and Contemporary Unknown Modern Bangles
Materials
Diamond, White Diamond, Topaz, 18k Gold, White Gold
RUCHI Mixed Shape Paraiba Tourmaline White Gold Knife Edge Hoop Earrings
By Ruchi New York
Located in New York, NY
18K White Gold
Paraiba Tourmaline: 6.52ct total weight.
Category
2010s Hong Kong Contemporary Hoop Earrings
Materials
Tourmaline, Gold, 18k Gold, White Gold
Free Shipping
W 0.75 in L 1.25 in
RUCHI Oval Tanzanite and Baguette Diamond White Gold Knife-Edge Bracelet
By Ruchi New York
Located in New York, NY
18K White Gold
Tanzanite- 14.32 Cts
Diamonds- 0.80 Cts
All Diamonds are G-H/SI
Category
2010s Hong Kong Contemporary Link Bracelets
Materials
Diamond, Tanzanite, Gold, 18k Gold, White Gold
Contemporary 18 Carat Yellow & White Gold Diamond Knife-Edged Engagement Ring
Located in Hamilton, AU
Lovingly crafted in 18 carat yellow and white gold, this gorgeous petite contemporary ring features
Category
21st Century and Contemporary Unknown Contemporary Engagement Rings
Materials
Diamond, Gold, White Gold, 18k Gold, Yellow Gold
Knife Edge Micro Pave Diamond Eternity Ring 1/2 Carat
Located in Los Angeles, CA
Knife edge micro pave 1/2 carat diamond eternity ring. Comfort fit
All of our diamonds are earth
Category
2010s Wedding Rings
Materials
Diamond, Gold, 14k Gold, Rose Gold, White Gold, Yellow Gold
Chic Set of Three 14k Knife Edge Bangles- Yellow, White, & Pink Gold w/Diamonds
Located in Palm Beach, FL
This exceedingly stylish and well crafted three piece set of Italian, 14k yellow, white and rose gold, hinged bangle bracelets are Gem-loc style, set with a total of fifteen modern r...
Category
21st Century and Contemporary Italian Contemporary Bangles
Materials
Diamond, Gold, 18k Gold
Free Shipping
H 0.2 in W 0.4 in
Antique Dagger/Knife Stick Pin with Ruby and Rose Cut Diamonds in 18 Carat Gold
Located in London, GB
worn in your hair, pinned on clothing: blazers, scarfs, coats, and ties.
Dagger set in 18 carat gold
Category
Antique Early 1900s British Edwardian Brooches
Materials
Diamond, Ruby, Gold, 18k Gold, 9k Gold
Free Shipping
L 2.17 in
YI Collection Champagne Diamond Compass Ring in 18k
Located in New York, NY
her architectural design. The knife edge band give it just that extra bit of chic.
This champagne
Category
2010s Thai Modern Engagement Rings
Materials
Diamond, 18k Gold
Vintage Marina B 18K Gold Chalcedony Orb Ring
By Marina B
Located in Venice, CA
18k gold band comes to a soft knife edge and frames the chalcedony by splitting into two reflective
Category
Early 2000s Italian Modern Cocktail Rings
Materials
Chalcedony, 18k Gold, Yellow Gold
Retro Turquoise Gemstone Cocktail Ring 18k Yellow Gold
Located in MIAMI, FL
One fantastic design crafted in 18k yellow gold. The ring highlights one cabochon cut turquoise
Category
Vintage 1970s American Retro Cocktail Rings
Materials
Turquoise, Yellow Gold, 18k Gold
Pomellato Rhodolite Garnet 18k Rose Gold Harem Cocktail Ring
By Pomellato
Located in Boca Raton, FL
Brand: Pomellato
Hallmark: Pomellato 750 C700004438
Gemstone: rhodolite garnet
Material: 18k
Category
21st Century and Contemporary Italian Modern Dome Rings
Materials
Garnet, Rhodolite, 18k Gold, Rose Gold
Platinum & 18K Yellow Gold Diamond Engagement Ring 0.40 ctw
Located in Houston, TX
Gender: Ladies
Size: 6 US
Total Weight: 9.6 grams
Purity: Platinum & 18K Yellow Gold
Shank type
Category
21st Century and Contemporary Engagement Rings
Materials
Diamond, 18k Gold, Yellow Gold, Platinum
Tacori 18K Gold Simply Tacori Sapphire Diamond Halo Engagement Ring
By Tacori
Located in San Fernando, CA
the natural beauty of the round center diamond on this platinum knife-edge band. Two rows of hand
Category
21st Century and Contemporary Bridal Rings
Materials
Diamond, Sapphire, 18k Gold
18k Handmade Yellow & White Gold Diamond Cross with Diamonds
By Avanti
Located in Carrollton, TX
shine finish on the backside shows the contrast versus the knife cut front side. The double chain is
Category
2010s American Contemporary Pendant Necklaces
Materials
Diamond, 18k Gold, White Gold, Yellow Gold
Free Shipping
W 1.5 in D 0.19 in L 1.6 in
18K TB Starr Citrine and Amethyst Bypass Bangle Bracelet
Located in Hummelstown, PA
This classic Edwardian knife edge bangle by TB Starr centers on large square step cut amethyst and
Category
Vintage 1910s American Edwardian Bangles
Materials
Citrine, Amethyst, 18k Gold
Retro Tigers Eye Gemstone & Diamond Geometric 18k Gold Ring
Located in MIAMI, FL
catching as I have personally never seen one like it! The ring is crafted in 18k yellow gold and shows a
Category
Vintage 1960s Unknown Retro Cocktail Rings
Materials
Diamond, Tiger's Eye, 18k Gold, Yellow Gold
18K Yellow Gold & Diamond Hoop Earrings
Located in New York, NY
18K yellow gold matte finished, knife edged hoop earrings with prong set diamonds.
10 round
Category
American Hoop Earrings
Prince Troubetskoy Russian Armorial Crest 18k Gold Cigar Pendant Fob Tool
Located in New York, NY
, file and knife.
1940's
This unique 18K gold cigar tool was created for Prince Igor Nikolayevich
Category
20th Century French Russian Empire Pendant Necklaces
Materials
18k Gold, Yellow Gold
Free Shipping
W 1.58 in L 6.58 in
Eternity Band 1.50tcw 18k White Gold White VS Diamonds New Close Out Ring
Located in Overland Park, KS
18k White gold knife edge eternity band, this is a rare find...I never see this style as an
Category
21st Century and Contemporary Modern Wedding Rings
Materials
Diamond, Gold, 18k Gold, White Gold
Antique Luxurious Bejeweled dessert 18K Gold Filled Coin Silver Porcelain set
Located in SE
Antique Luxurious Bejeweled dessert 18K Gold Filled Silver flatware set in Renaissance style
Category
Antique 1890s Austrian Renaissance Flatware and Serving Pieces
Materials
Garnet, Turquoise, Silver, 18k Gold, Gold-filled
Vintage 20.24 CTW Imperial Topaz No Heat Ceylon Sapphire 18K White Gold Ring
Located in Philadelphia, PA
medium blue in color - prong set in baskets
Completed by knife edge shank
Tested as 18 karat gold
Circa
Category
Vintage 1950s Engagement Rings
Materials
Sapphire, Topaz, Gold, 18k Gold, White Gold
Antique Art Nouveau shamrock ring, Ruby, Diamond and Garnet doublet, 18k gold
Located in NEWARK, GB
This antique Art Nouveau Shamrock or clover ring is such a charming beauty!
Crafted in 18ct yellow
Category
Early 20th Century British Art Nouveau Engagement Rings
Materials
Diamond, Garnet, Ruby, 18k Gold, Yellow Gold, Platinum
Tacori Wedding Band with Diamonds in 18k White Gold Ring Vintage Inspired
By Tacori
Located in Austin, TX
This Tacori Brand ring is a gorgeously bright knife edge band has a double row of diamonds at the
Category
2010s American Contemporary Band Rings
Materials
Diamond, 18k Gold, White Gold
3.55Ct Step Cut Burmese Peridot Diamond Cocktail Ring Platinum 18K Rose Filigree
Located in Lambertville , NJ
Brilliant Diamonds. Round Brilliant Diamonds continue on the 18K Rose Gold Shoulders of the ring. The
Category
2010s American Contemporary Cocktail Rings
Materials
Peridot, Diamond, 18k Gold, Platinum, Rose Gold
Superb 2.05ct 3-Stone Diamond Ring in 18K Gold. Center stone: 1.05ct, Ideal Cut.
Located in MELBOURNE, AU
of 0.50ct each
of H colour, VS clarity
Sparkling gems are securely prong set
in 18K White
Category
Early 2000s Australian Modern Three-Stone Rings
Materials
Diamond, 18k Gold, White Gold
GIA-Certified 2.29 Carat Yellow Sapphire Ring with Tiny Sapphires in 18K Gold
By Eytan Brandes
Located in Sherman Oaks, CA
with diamonds as an engagement ring. He made an extra copy in 18 karat gold because he wanted a nice
Category
2010s American Contemporary Solitaire Rings
Materials
Sapphire, Blue Sapphire, Yellow Sapphire, Gold, 18k Gold, Yellow Gold
Patek Philippe for Tiffany & Company Yellow Gold Presentation Pocket Watch
By Patek Philippe for Tiffany & Co.
Located in Chicago, IL
Circa 1930s Patek Philippe for Tiffany & Company Presentation Pocket Watch, 47 M.M 18k Yellow Gold
Category
Vintage 1930s Swiss Pocket Watches
Materials
18k Gold, Yellow Gold
9.8 Carat Rubellite Diamond Pendant
By Mehnaz Durrani
Located in Richmond, BC
) encased in high profile with three knife prongs, framed with round brilliant cut diamonds. Handcrafted
Category
21st Century and Contemporary Canadian Contemporary Pendant Necklaces
Materials
18k Gold
Van Cleef & Arpels Carved Rose Quartz Earrings in 18 Karat Yellow Gold
By Van Cleef & Arpels
Located in New York, NY
Pair of Vintage Van Cleef and Arpels earrings finely crafted in 18 karat yellow gold each featuring
Category
21st Century and Contemporary French Clip-on Earrings
Materials
Quartz, 18k Gold, Yellow Gold
Free Shipping
W 0.75 in L 1.25 in
GIA Certified White Gold Round Brilliant Cut Diamond Ring 1.30ct M/VVS2
Located in London, GB
A classic 18k white gold diamond engagement ring. The solitaire is set with a round brilliant cut
Category
21st Century and Contemporary Solitaire Rings
Materials
Diamond, 18k Gold, White Gold
Gold and Diamond Necklace
Located in New York, NY
18k white gold segmented necklace ,57 full cut diamonds separated by knife edge gold links with a
Category
21st Century and Contemporary Italian Contemporary Choker Necklaces
Materials
Diamond, 18k Gold
9.01 Carat Tanzanite Cocktail Ring
By Mehnaz Durrani
Located in Richmond, BC
faceted natural 9.01 carats tanzanite encased in petal open mount, set in high profile, with four knife
Category
21st Century and Contemporary Canadian Contemporary Cocktail Rings
Materials
Tanzanite, 18k Gold
Mozambique 24.21 Carat Ruby Diamond Pendant Necklace
By Mehnaz Durrani
Located in Richmond, BC
, 24.21 carats natural ruby mounted in high profile with yellow gold eight knife prongs, accented with two
Category
21st Century and Contemporary Canadian Contemporary Pendant Necklaces
Materials
Diamond, Ruby, 18k Gold
GIA Certified White Gold Round Brilliant Cut Diamond Ring 1.10ct G/SI1
Located in London, GB
A lovely 18k white gold diamond engagement ring. The solitaire features a round brilliant cut
Category
21st Century and Contemporary Engagement Rings
Materials
Diamond, 18k Gold, White Gold
3.53 Carat Sapphire Diamond Ring
By Mehnaz Durrani
Located in Richmond, BC
carats sapphire encased in basket mounting with four knife prongs, accented with two rows of round
Category
21st Century and Contemporary Canadian Contemporary Engagement Rings
Materials
Diamond, Sapphire, 18k Gold
2.02 Carat Unheated Ruby Diamond Cocktail Ring
By Mehnaz Durrani
Located in Richmond, BC
pinkish red, 2.02 carats unheated ruby encased in basket mount with four knife prongs, accented with round
Category
21st Century and Contemporary Canadian Contemporary Cocktail Rings
Materials
Diamond, Ruby, 18k Gold
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Knife 18k For Sale on 1stDibs
You are likely to find exactly the knife 18k you’re looking for on 1stDibs, as there is a broad range for sale. Each design created in this style — which was crafted with great care and often made from gold, 18k gold and yellow gold — can elevate any look. Find an antique version now, or shop for 344 vintage or 330 modern creation for a more contemporary example of these cherished accessories. Making the right choice when shopping for a knife 18k may mean carefully reviewing examples of this item dating from different eras — you can find an early iteration of this piece from the 18th Century and a newer version made as recently as the 21st Century, both of which have proven very popular over the years. A knife 18k from Alexandra Mor, Tiffany & Co. and ANGARA INC. — each of whom created a beautiful version of this treasured accessory — is worth considering. A knife 18k can be a stylish choice for most occasions, but diamond rings, from our inventory of 425, can add a particularly distinctive touch to your look, day or night. A round cut version of this piece has appeal, but there are also oval cut and brilliant cut versions for sale. When shopping for a knife 18k, you’ll find that there are less available pieces for unisex or men today than there are for women.
How Much is a Knife 18k?
On average, a knife 18k at 1stDibs sells for $6,865, while they’re typically $275 on the low end and $425,000 for the highest priced versions of this item.
Questions About Knife 18k
- 1stDibs ExpertNovember 21, 2023Whether a wedding band should be 14K or 18K depends on your personal preferences. Because it contains more pure gold, 18-karat gold will usually show off a richer color and be less likely to fade over time. On the other hand, 14-karat gold is less prone to scratching and damage because it has more alloy metals. Explore a large collection of gold wedding bands on 1stDibs.
- Is 18K gold good for earrings?1 Answer1stDibs ExpertNovember 14, 2023Yes, 18-karat gold can be good for earrings. Because it is an alloy, 18-karat gold is more durable and scratch-resistant than pure 24-karat gold. You can find 18-karat gold in rich warm yellow, cooler white with warm undertones and light pink rose. On 1stDibs, explore a large collection of gold earrings.
- 1stDibs ExpertNovember 1, 2023The difference between 14K and 18K white gold stud earrings comes down to the content of the precious metal alloy. Stud earrings made of 14-karat white gold are 58.3% gold and 41.7% base metal, while 18-karat gold is 75% pure gold and 25% other metals. As a result, 14-karat white gold tends to be stronger and more resistant to scratching, and 18-karat gold will have a more noticeable warm-glowing yellow tinge. On 1stDibs, shop a range of white gold stud earrings.