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Diamond Key

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Exquisite 18k White Gold Diamond Key Necklace
Located in New York, NY
Exquisite 18k White Gold Diamond Key Necklace Unlock a world of elegance with this stunning 18k
Category

21st Century and Contemporary Modern Pendant Necklaces

Materials

Diamond, 18k Gold, White Gold

18K White Gold Diamond Key Necklace
Located in Hong Kong, HK
18K White Gold Diamond Key Necklace Diamonds - 0.72 CT 18K White Gold - 4.13 GM Nurati Jewelry's
Category

21st Century and Contemporary Hong Kong Modern Pendant Necklaces

Materials

Diamond, White Gold

18K White Gold Pink Diamond Key Pendant Necklace
Located in Kowloon, HK
18K White Gold Pink Diamond Key Pendant Necklace 1 Pink Diamond - 0.16 CT Diamonds - 0.41 CT
Category

21st Century and Contemporary Hong Kong Modern Pendant Necklaces

Materials

Pink Diamond, White Gold

18K White Gold Diamond Key Necklace
Located in Hong Kong, HK
18K White Gold Diamond Key Necklace Diamonds - 0.77 CT 18K White Gold - 4.84 GM Nurati Jewelry's
Category

21st Century and Contemporary Hong Kong Modern Pendant Necklaces

Materials

Diamond, White Gold

18K White Gold Diamond Key Necklace
Located in Hong Kong, HK
18K White Gold Diamond Key Necklace Diamonds - 0.95 CT 18K White Gold - 4.99 GM Nurati Jewelry's
Category

21st Century and Contemporary Hong Kong Modern Pendant Necklaces

Materials

Diamond, White Gold

14K Gold Diamond Key Charm Necklace
Located in ISTANBUL, TR
14K Gold Key Necklace with Diamonds, Diamond Key Necklace, Gold Key Necklace, 14K Key Necklace, Key
Category

2010s Turkish Art Deco Pendant Necklaces

Materials

Diamond, 14k Gold

14K Gold Diamond Key Charm Necklace
Located in ISTANBUL, TR
14K Gold Key Necklace with Diamonds, Diamond Key Necklace, Gold Key Necklace, 14K Key Necklace, Key
Category

2010s Turkish Art Deco Pendant Necklaces

Materials

Diamond, 14k Gold

14 Karat Yellow Gold and Diamond Key Charm
Located in Washington Depot, CT
Vintage 14 Karat Yellow Gold and Diamond Key Charm- This sparkling skeleton key charm is decorated
Category

20th Century Pendant Necklaces

Materials

Diamond, Yellow Gold

RCI Sterling Silver 14K Diamonds Key Pendant #15129
Located in Washington Depot, CT
Sterling silver 14K diamonds key pendant by RCI. Beautiful sterling silver key with yellow gold
Category

20th Century Pendant Necklaces

Materials

White Diamond, Gold, Yellow Gold, Sterling Silver

14k Gold Diamond Key Necklace Diamond Faith Necklace
By Oshi Jewels
Located in Bangkok, TH
Diamond key necklace, Diamond faith necklace, faith key necklace, everyday diamond necklace , gift
Category

21st Century and Contemporary Thai Modern Pendant Necklaces

Materials

Diamond, 14k Gold, Rose Gold, White Gold, Yellow Gold

18k Gold Diamond Key Necklace Diamond Faith Necklace
By Oshi Jewels
Located in Bangkok, TH
Diamond key necklace, Diamond faith necklace, faith key necklace, everyday diamond necklace , gift
Category

21st Century and Contemporary Thai Modern Pendant Necklaces

Materials

Diamond, 18k Gold, Rose Gold, White Gold, Yellow Gold

TIFFANY & Co. Atlas 18K Gold Diamond Key Pendant Necklace
By Tiffany & Co.
Located in Los Angeles, CA
TIFFANY & Co. Atlas 18K Gold Diamond Key Pendant Necklace Metal: 18K yellow gold Weight: 5.70
Category

2010s Pendant Necklaces

Materials

Diamond, 18k Gold

Vintage 14 Karat White Gold Diamonds by Yard Necklace with Diamond Key Pendant
Located in Washington Depot, CT
Vintage 14 Karat White Gold Diamonds by the Yard Necklace with Diamond Key Pendant- This lovely
Category

Late 20th Century Link Necklaces

Materials

Diamond, White Gold

18K White Gold Pink Diamond & Diamond Key to Your Heart Pendant Necklace
Located in Kowloon, HK
18K White Gold Pink Diamond & Diamond Key to 'Your Heart Pendant' Necklace 1 Pink Diamond - 0.08
Category

21st Century and Contemporary Hong Kong Modern Pendant Necklaces

Materials

Pink Diamond, White Gold

Tiffany & Co Atlas Collection 18k Gold & Diamond Key Pendant
By Tiffany & Co.
Located in Vaughan, CA
Elevate your jewelry collection with the Tiffany & Co Atlas Collection 18k Gold & Diamond Key
Category

21st Century and Contemporary Pendant Necklaces

Materials

18k Gold

Pave Diamond Key Earrings 14k Gold&925 Silver Earring For Birthdays
Located in Chicago, IL
Pave Diamond Key Earrings 14k Gold&925 Silver Earring For Birthdays Metal Sterling Silver 925
Category

2010s Indian Art Deco Dangle Earrings

Materials

Diamond, 14k Gold, Yellow Gold, Silver

Two-Tone Diamond Key Necklace
Located in Dallas, TX
suspends a two-tone, diamond-set key pendant. The pendant supports 0.50 carats of bead-set diamonds.
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, 14k Gold, White Gold, Yellow Gold

Two-Tone Diamond Key Necklace
Two-Tone Diamond Key Necklace
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L 16 in
14K Gold 0.90 Ct. Rose cut Brown Diamond Key Charm Necklace
Located in ISTANBUL, TR
14K Gold 0.90 ct. Rosecut Brown Diamond Key Charm Necklace 14K Gold Key Necklace with Diamonds
Category

2010s Turkish Art Deco Pendant Necklaces

Materials

Brown Diamond, 14k Gold, Rose Gold

Diamond Key Locket Pedant Necklace in 14k Solid Gold
Located in Chicago, IL
Diamond Key Necklace 14k Solid Gold Key Pendant Necklace Women Key Locket N78 Light weight can be
Category

2010s Indian Pendant Necklaces

Materials

Diamond, Yellow Gold, Gold, 14k Gold

Tiffany & Co Fleur De Lis Diamond Key Pendant in 18 Karat Rose Gold
By Tiffany & Co.
Located in San Diego, CA
Tiffany & Co Fleur de Lis Diamond Key Pendant withChain Style: Pendant Necklace Ref. number
Category

2010s Pendant Necklaces

Materials

Diamond, Rose Gold

0.42 cts of Diamonds Key Pendant
Located in New York, NY
This exquisite key-shaped pendant radiates elegance and sophistication, making it a perfect
Category

2010s Indian Modern Pendant Necklaces

Materials

Diamond, Pink Diamond, Brown Diamond, White Diamond, 18k Gold, White Gold

0.53 cts of Diamonds Key Pendant
Located in New York, NY
This sophisticated unisex pendant features a striking key-shaped silhouette, crafted in luxurious
Category

2010s Indian Modern Pendant Necklaces

Materials

Diamond, White Diamond, Brown Diamond, 18k Gold, White Gold

Tiffany & Co. Diamond Key Pendant Necklace
By Tiffany & Co.
Located in London, GB
pendant is crafted in platinum in the form of a key and features 36 sparkling round brilliant cut diamonds
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, Platinum

Tiffany and Co Diamond Key Necklace
By Tiffany & Co.
Located in Coral Gables, FL
Tiffany and Co Sterling Silver Diamond Blossom Key Necklace Measuring 24 Inches Long with 2.75 Inch
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, Sterling Silver

GIA Certified Brilliant Heart Diamond Key Necklace
Located in Boca Raton, FL
This exquisite 18k white gold key-shaped necklace features a total of 5.78 carats of natural
Category

21st Century and Contemporary American Pendant Necklaces

Materials

Diamond, 18k Gold, White Gold

0.15 Carat Natural Diamond Key Necklace Pendant 14 Karat White Gold Chain
Located in New York, NY
0.15 Carat Natural Diamond Key Pendant Necklace 14K White Gold 100% Natural Diamonds, Not Enhanced
Category

21st Century and Contemporary American Contemporary Pendant Necklaces

Materials

Diamond, 14k Gold, White Gold

0.25 Carat Natural Diamond Key Necklace Pendant 14 Karat White Gold Chain
Located in New York, NY
0.25 Carat Natural Diamond Key Necklace 14K White Gold 100% Natural Diamonds, Not Enhanced in any
Category

21st Century and Contemporary American Contemporary Pendant Necklaces

Materials

Diamond, 14k Gold, White Gold

0.57 cts of Diamonds Key Pendant cum Brooch
Located in New York, NY
This elegant unisex pendant cum brooch features a distinctive key-shaped silhouette, crafted in
Category

2010s Indian Modern Pendant Necklaces

Materials

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

1.57 Carat Diamond Key Pendant 14K Yellow Gold
Located in New York, NY
Our one of a kind 1.57 Carat key pendant is set with high quality round cut diamonds and made with
Category

2010s American Contemporary Pendant Necklaces

Materials

Diamond, 14k Gold, Yellow Gold

1.57 Carat Diamond Key Pendant 14K Yellow Gold
1.57 Carat Diamond Key Pendant 14K Yellow Gold
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W 0.79 in D 0.1 in L 2.17 in
1.59 Carat Diamond Key Pendant 14K White Gold
Located in New York, NY
Our one of a kind 1.59 Carat key pendant is set with high quality round cut diamonds and made with
Category

2010s American Contemporary Pendant Necklaces

Materials

Diamond, 14k Gold, White Gold

1.59 Carat Diamond Key Pendant 14K White Gold
1.59 Carat Diamond Key Pendant 14K White Gold
Free Shipping
W 0.79 in D 0.1 in L 2.17 in
GILIN Illusion Yellow and White Diamond Key Pendant
By GILIN
Located in Central, HK
GILIN's classic, yet elegant collection. Perfect for your everyday wear. The yellow diamond
Category

2010s Hong Kong Pendant Necklaces

Materials

White Diamond, Yellow Diamond, 18k Gold

GILIN Illusion Yellow and White Diamond Key Pendant
Free Shipping
W 0.71 in D 0.4 in L 1.7 in
Classic 14k Gold 2 carats Diamond Key Pendant
Located in Miami, FL
Crafted from 14k gold, this key pendant weighs 6.9 grams and measures 2 x 0.60 inches, featuring 2
Category

21st Century and Contemporary European Pendant Necklaces

Materials

Gold, 14k Gold, White Gold

14 Karat White and Yellow Gold Diamond Key Pendant
Located in Scottsdale, AZ
Diamond: 1 round brilliant cut= 1.30ct Color: J Clarity: VS2 Diamonds: 18 round brilliant cuts = 0.36cttw
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, 14k Gold, White Gold, Yellow Gold

AENEA 18k White Gold White and Black Diamonds Key Pendant
By AENEA Jewellery
Located in Salzburg, AT
This LOVE Key Pendant with White and black diamonds is handcrafted in white gold, sterling silver
Category

21st Century and Contemporary Austrian Modern Pendant Necklaces

Materials

White Diamond, Black Diamond, 18k Gold, Rhodium, Sterling Silver, White ...

0.60Ct Stunning 14K Solid White Gold Diamond Key Pendant Necklace
Located in Los Angeles, CA
0.60Ct Splendid 14k Solid White Gold Key Pendant Necklace Amazing looking piece! Stamped: 14k
Category

2010s American Chain Necklaces

Materials

Diamond, 14k Gold, White Gold

Emerald & Diamond Key Shaped Earrings Made In 18k White Gold
By Artisan NYC
Located in New York, NY
18KT:3.26g, Diamond:0.65ct Emerald:0.33ct"
Category

21st Century and Contemporary Indian Artisan Dangle Earrings

Materials

Diamond, Emerald, 18k Gold, White Gold

14 Karat Yellow Gold 0.14 Carat Diamond Key and Heart Necklace
Located in Great neck, NY
Unlock the Key to your Heart or the Heart of a Loved one :) This Beautiful Pendant is crafted of
Category

21st Century and Contemporary Chinese Contemporary Pendant Necklaces

Materials

Diamond, 14k Gold, Yellow Gold

14K White Gold Natural Diamond Key To My Heart Pendant Necklace
By Gad & Co.
Located in Miami, FL
Thin, light, and dainty natural diamond and solid gold "key to my heart" motif pendant. With a
Category

2010s American Contemporary Pendant Necklaces

Materials

Diamond, White Gold

18k Rose Gold Natural Diamond Key To My Heart Pendant Necklace
By Gad & Co.
Located in Miami, FL
Thin, light, and dainty natural diamond and solid gold "key to my heart" motif pendant. With a
Category

2010s American Contemporary Pendant Necklaces

Materials

Diamond, Rose Gold

Piero Milano 18K Rose Gold 0.26 Ct Diamond Key Pendant Necklace
By PIERO MILANO
Located in Los Angeles, CA
Metal: 18K Rose Gold Hallmarks: 18K Total Weight: 4.1 Grams Stone Type: 0.26 CT Diamonds G-H V-SI
Category

2010s Italian Pendant Necklaces

Materials

Diamond, 18k Gold

Estate 2.20 Ct. Natural Ruby Diamond Key Pendant Necklace 18 KT
Located in Napoli, IT
Unlock of Desires Synonymous of good luck, wearing a key has become a tradition to attract
Category

Vintage 1960s European Contemporary Pendant Necklaces

Materials

Diamond, Ruby, 18k Gold

Estate 2.20 Ct. Natural Ruby Diamond Key Pendant Necklace 18 KT
Estate 2.20 Ct. Natural Ruby Diamond Key Pendant Necklace 18 KT
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H 1.97 in W 0.52 in L 19.69 in
0.15 Carat Natural Diamond Key Necklace Pendant 14 Karat Yellow Gold Chain
Located in New York, NY
100% Natural Diamonds, Not Enhanced in any way Round Cut Diamond Necklace with 18'' chain 0.15CT
Category

21st Century and Contemporary American Contemporary Link Necklaces

Materials

Diamond, 14k Gold, Yellow Gold

Natural 0.30 Carat Pave Diamond Key Stud Earrings 14 Karat Yellow Gold Jewelry
By Spectrum Jewels
Located in IN
diamonds, creating a harmonious contrast that adds depth and dimension to the overall aesthetic. Item Code
Category

21st Century and Contemporary Indian Modern Stud Earrings

Materials

Diamond, Yellow Gold, 14k Gold

Natural 0.30 Carat Pave Diamond Key Stud Earrings 18 Karat Yellow Gold Jewelry
By Spectrum Jewels
Located in IN
diamonds, creating a harmonious contrast that adds depth and dimension to the overall aesthetic. Item Code
Category

21st Century and Contemporary Indian Modern Stud Earrings

Materials

Diamond, 18k Gold, Yellow Gold

Key to My Heart Charm
Located in New York, NY
Large heavy figural heart charm. 14K gold . Applied ruby and diamond key on engraved background
Category

Vintage 1940s American More Jewelry

Materials

Diamond, Ruby, 14k Gold

Key to My Heart Charm
Free Shipping
W 1.25 in L 1.5 in
Retro Heart Diamond Ruby Key Charm
Located in New York, NY
and diamond key. Heavy gauge 14K yellow gold. 1 1/4" x 1 1/4." A special charm for a special
Category

Vintage 1940s American More Jewelry

Materials

Diamond, Ruby, Gold, 14k Gold

Retro Heart Diamond Ruby Key Charm
Retro Heart Diamond Ruby Key Charm
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W 1.25 in L 1.25 in
18k Gold Diamond Hope Key Necklace
By Oshi Jewels
Located in Bangkok, TH
Diamond key necklace, Diamond hope necklace, Hope key necklace, everyday diamond diamond necklace
Category

21st Century and Contemporary Thai Modern Pendant Necklaces

Materials

Diamond, 18k Gold, Rose Gold, White Gold, Yellow Gold

14k Gold Diamond Hope Key Necklace
By Oshi Jewels
Located in Bangkok, TH
Diamond key necklace, Diamond hope necklace, Hope key necklace, everyday diamond diamond necklace
Category

21st Century and Contemporary Thai Modern Pendant Necklaces

Materials

Diamond, 14k Gold, Rose Gold, White Gold, Yellow Gold

Tiffany & Co. Large Filigree Heart Key Diamond Pendant Necklace 18kt White Gold
By Tiffany & Co.
Located in San Diego, CA
Comments: Intricate Filigree design on back that spells out TIFFANY with a Paved Diamond Key Charm attach
Category

2010s Brooches

Materials

Diamond, 18k Gold, White Gold

Barbara Bixby Sterling Silver 18K Yellow Gold Diamond Signature Key Pendant
Located in Washington Depot, CT
Sterling silver and 18K yellow gold with diamonds key pendant enhancer by Barbara Bixby
Category

20th Century Pendant Necklaces

Materials

Diamond, Yellow Gold, Sterling Silver

.925 Sterling Silver Diamond Accent Key Heart and Lock Pendant Necklace
Located in New York, NY
This sweet and romantic style diamond key pendant will brighten her smile. Crafted on sterling
Category

21st Century and Contemporary Indian Modern Pendant Necklaces

Materials

Diamond, White Diamond, Sterling Silver

Tiffany & Co .50 Carat Round Diamond Platinum Key Pendant
By Tiffany & Co.
Located in Stamford, CT
Excellent Tiffany & Co platinum diamond key pendant, medium size, 1.5 Inches long. This retired
Category

21st Century and Contemporary Necklace Enhancers

Materials

Diamond, Platinum

Tiffany & Co .98 Carat Diamond Platinum Bubble Key Pendant
By Tiffany & Co.
Located in Stamford, CT
Tiffany & Co platinum "Bubbles" design diamond key pendant. Large size. Two Inches long. Incredibly
Category

21st Century and Contemporary Necklace Enhancers

Materials

Diamond, Platinum

ANGARA Natural Pave-Set 0.13cttw Diamond Heart Key Pendant in 14K Yellow Gold
By ANGARA INC.
Located in Los Angeles, CA
This adorable heart key pendant is designed with a touch of romance. Diamonds, encrusted on the
Category

21st Century and Contemporary American Modern Chain Necklaces

Materials

Yellow Gold

Natural Pave-Set Diamond Heart Key Pendant in 14K Yellow Gold Size-1.2mm
By ANGARA INC.
Located in Los Angeles, CA
This adorable heart key pendant is designed with a touch of romance. Diamonds, encrusted on the
Category

21st Century and Contemporary American Modern Chain Necklaces

Materials

Yellow Gold

ANGARA Natural Pave-Set 0.13cttw Diamond Heart Key Pendant in 14K Yellow Gold
By ANGARA INC.
Located in Los Angeles, CA
This adorable heart key pendant is designed with a touch of romance. Diamonds, encrusted on the
Category

21st Century and Contemporary American Modern Chain Necklaces

Materials

Yellow Gold

ANGARA Natural Pave-Set 0.13cttw Diamond Heart Key Pendant in 14K White Gold
By ANGARA INC.
Located in Los Angeles, CA
This adorable heart key pendant is designed with a touch of romance. Diamonds, encrusted on the
Category

21st Century and Contemporary American Modern Chain Necklaces

Materials

White Gold

ANGARA Natural Pave-Set 0.13cttw Diamond Heart Key Pendant in 14K Rose Gold
By ANGARA INC.
Located in Los Angeles, CA
This adorable heart key pendant is designed with a touch of romance. Diamonds, encrusted on the
Category

21st Century and Contemporary American Modern Chain Necklaces

Materials

Rose Gold

ANGARA Natural Pave-Set 0.13cttw Diamond Heart Key Pendant in 14K Rose Gold
By ANGARA INC.
Located in Los Angeles, CA
This adorable heart key pendant is designed with a touch of romance. Diamonds, encrusted on the
Category

21st Century and Contemporary American Modern Chain Necklaces

Materials

Rose Gold

ANGARA Natural Pave-Set 0.13cttw Diamond Heart Key Pendant in 14K White Gold
By ANGARA INC.
Located in Los Angeles, CA
This adorable heart key pendant is designed with a touch of romance. Diamonds, encrusted on the
Category

21st Century and Contemporary American Modern Chain Necklaces

Materials

White Gold

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Diamond Key For Sale on 1stDibs

You are likely to find exactly the diamond key you’re looking for on 1stDibs, as there is a broad range for sale. Every item for sale was constructed with extraordinary care, often using Gold, 18k Gold and Yellow Gold. In our selection of items, you can find a vintage example as well as a contemporary version. Finding the perfect diamond key may mean sifting through those created during different time periods — you can find an early version that dates to the 19th Century and a newer variation that were made as recently as the 21st Century. For this particular accessory, there are many different carat weights to choose from, but .5 Carat and 1 Carat versions are of considerable interest. Creating a diamond key has been a part of the legacy of many jewelers, but those produced by Tiffany & Co., Georgios Collections Inc and Butani are consistently popular. See these pages for a round cut iteration of this accessory, while there are also brilliant cut cut and princess cut cut versions available here, too. Most of our diamond key for sale are for women, but there are 117 pieces available to browse for men.

How Much is a Diamond Key?

The price for a diamond key starts at $95 and tops out at $49,000 with these necklaces, on average, selling for $3,000.

The Legacy of Diamond in Jewelry Design

Antique diamond rings, diamond tiaras and dazzling vintage diamond earrings are on the wish lists of every lover of fine jewelry. And diamonds and diamond jewelry are primarily associated with storybook engagements and red-carpet grand entrances — indeed, this ultra-cherished gemstone has a dramatic history on its hands.

From “A Diamond Is Forever” to “Diamonds Are a Girl’s Best Friend,” pop culture has ingrained in our minds that diamonds are the most desired, the most lasting and the most valuable gemstone. But what makes the diamond so special? Each stone — whether it’s rubies, sapphires or another stone — is unique and important in its own right. April babies might claim diamonds for themselves, but just about everyone wants this kind of sparkle in their lives!

There are several factors that set diamonds apart from other stones, and these points are important to our gem education.

Diamonds are minerals. They are made up of almost entirely of carbon (carbon comprises 99.95 percent; the remainder consists of various trace elements). Diamonds are the hardest gemstones, ranking number 10 on the Mohs Hardness Scale. Even its name, diamond, is rooted in the Greek adamas, or unconquerable. The only object that can scratch a diamond is another diamond. Diamonds are formed deep within the earth at very high temperatures (1,652–2,372 degrees Fahrenheit at depths between 90 and 120 miles beneath the earth’s surface) and are carried up by volcanic activity. Diamonds are quite rare, according to the Gemological Institute of America, and only 30 percent of all the diamonds mined in the world are gem quality.

In the 1950s, the Gemological Institute of America developed the 4Cs grading system to classify diamonds: clarity, color, cut and carat weight. Not all diamonds are created equal (there are diamonds, and then there are diamonds). The value of the diamond depends on the clarity (flawless diamonds are very rare but a diamond's value decreases if there are many blemishes or inclusions), color (the less color the higher the grade), cut (how the diamond’s facets catch the light, certain cuts of diamonds show off the stone better than others) and carat weight (the bigger, the better).

When you start shopping for a diamond engagement ring, always prioritize the cut, which plays the largest role in the diamond's beauty (taking the time to clean your diamond ring at least every six months or so plays a role in maintaining said beauty). And on 1stDibs, a range of buying guides can be found for those in the market for antique engagement ringsvintage engagement rings or Art Deco engagement rings

Shop antique and vintage diamond rings, diamond necklaces and other extraordinary diamond jewelry on 1stDibs.