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Tiffany Co. Tiffany Keys Diamond 18K Quatra Heart Key Pendant Necklace
By Tiffany Co.
Located in Dubai, Al Qouz 2
One look at this beauty from Tiffany & Co. and you'll know why diamonds are a girl's best friend
Category

2010s American Contemporary Pendant Necklaces

David Yurman Diamond Gold Lock and Key Bracelet
By David Yurman
Located in Vail, CO
Chain bracelet, showcasing a pavé diamond-set lock motif with diamond-accented key charm, on a
Category

21st Century and Contemporary American Link Bracelets

Materials

Diamond, White Diamond, 18k Gold, Yellow Gold

Tiffany Co. Diamond Oval Key Platinum Pendant Necklace
By Tiffany Co.
Located in Dubai, Al Qouz 2
One look at this beauty from Tiffany & Co. and you'll know why diamonds are a girl's best friend
Category

2010s Italian Pendant Necklaces

Materials

Diamond, Platinum

Tiffany Co. Tiffany Keys Crown Key Diamond 18K Yellow Gold Pendant Necklace
By Tiffany Co.
Located in Dubai, Al Qouz 2
shaped like a key and immaculately adorned with round brilliant-cut diamonds. Held by a gold chain with a
Category

2010s Italian Contemporary More Necklaces

Tiffany Co. Modern Key Round Key Diamond 18k White Gold Pendant Necklace
By Tiffany Co.
Located in Dubai, Al Qouz 2
Radiating hope and optimism and symbolizing a bright future, the Tiffany keys from Tiffany & Co
Category

2010s Italian Contemporary More Necklaces

Tiffany Co. Keys Tiffany Fleur de Lis Key Pendant in platinum w/ diamonds
By Tiffany Co.
Located in Surfside, FL
Tiffany & Co. Keys Tiffany Fleur de Lis Key Pendant in platinum with approx 0.77 cts in diamonds
Category

20th Century Pendant Necklaces

Materials

Platinum

Tiffany Co. Diamond Platinum "Fleur de Lis" Key Pendant
By Tiffany Co.
Located in Vail, CO
Diamond "Fleur de Lis" key pendant necklace, mounted in platinum, on a 16" platinum chain, both
Category

21st Century and Contemporary American Pendant Necklaces

Materials

Diamond, White Diamond, Platinum

Tiffany Co. Daisy Key Diamond Silver Long Pendant Necklace
By Tiffany Co.
Located in Dubai, Al Qouz 2
Radiating hope and optimism and symbolizing a bright future, the Tiffany keys from Tiffany & Co
Category

2010s Italian Pendant Necklaces

Materials

Diamond, Silver

Early Art Deco Sapphire Diamond Greek Key Bow Brooch
Located in Sale, Cheshire
cut diamonds and a blue sapphire meander (or Greek Key) motif running through lines of fine millegrain
Category

Early 20th Century French Art Deco Brooches

Materials

White Diamond, Blue Sapphire, 18k Gold, Platinum

Rare Aldo Cipullo Diamond "Love" Key Motif Gold Pendant Charm
By Aldo Cipullo
Located in Palm Beach, FL
This is a 18K yellow gold Key motif pendant/charm accented with diamonds made by Aldo Cipullo
Category

Vintage 1980s Charm Bracelets

Materials

Diamond, 18k Gold

Yellow and White Gold Diamond Greek Key Design Pendant Necklace
Located in Columbia, MO
this beauty yours today! MSRP $1,600! DETAILS: Yellow & White Gold Round Diamond Greek Key Design
Category

21st Century and Contemporary Pendant Necklaces

Materials

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

Tiffany Gold Key Pendant
By Tiffany Co.
Located in San Francisco, CA
Of course Tiffany has the key to our heart! This very special pendant is made of 18 karat gold
Category

21st Century and Contemporary Unknown Contemporary Necklace Enhancers

Materials

Diamond, 18k Gold

Lagos Sterling Silver 0.02 Carat Beloved Key Diamond Pendant Necklace
By Lagos
Located in Columbia, MO
Stone Clarity Si1-si2 Main Stone Creation Natural Main Stone Diamond Main Stone Color G/h Estimated
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, White Diamond, Silver, Sterling Silver

Tiffany Co. Diamond Platinum Fleur-de-Lis Key Pendant Necklace
By Tiffany Co.
Located in Lambertville, NJ
Platinum chain necklace with key pendant, crafted by Tiffany Co. Key is decorated with
Category

21st Century and Contemporary American Pendant Necklaces

Materials

Diamond, Platinum

Tiffany Co. Tiffany Victoria Key Diamond Yellow Diamond Platinum Pendant
By Tiffany Co.
Located in Dubai, Al Qouz 2
like a key and immaculately adorned with brilliant-cut diamonds, each one artistically placed to
Category

2010s French Contemporary Pendant Necklaces

Materials

Platinum

Tiffany Co. Atlas Key Diamonds 18k White Gold Pendant Necklace
By Tiffany Co.
Located in Dubai, Al Qouz 2
Radiating hope & optimism and symbolizing a bright future, the Tiffany keys from Tiffany & Co. are
Category

2010s Italian Pendant Necklaces

Materials

Diamond, White Gold

Very Rare Georgian Diamond Ring with a Lock and Key
Located in New York, NY
ring.Three bands of rose cut diamonds are adorned with a diamond lock and key which delicately dangle from
Category

Antique Early 19th Century English Georgian Bridal Rings

Materials

Diamond, Gold Plate

Tiffany Co. Quatra Heart Key Diamond Platinum Pendant
By Tiffany Co.
Located in Dubai, Al Qouz 2
One look at this beauty from Tiffany & Co. and you'll know why diamonds are a girl's best friend
Category

2010s American Contemporary Pendant Necklaces

Tiffany Co. Quatra Heart Key Diamond Platinum Pendant
By Tiffany Co.
Located in Dubai, Al Qouz 2
One look at this beauty from Tiffany & Co. and you'll know why diamonds are a girl's best friend
Category

2010s American Contemporary Pendant Necklaces

Tiffany Co. Diamond Heart Key Pendant in 18K White Gold
By Tiffany Co.
Located in Boca Raton, FL
Tiffany & Co. Diamond Heart Key Pendant in 18K White Gold. Round Brilliant Cut Diamonds weighing
Category

2010s Pendant Necklaces

Materials

Diamond, 18k Gold, White Gold

Tiffany Co. Crown Key Diamond 18k Two Tone Gold Pendant Necklace
By Tiffany Co.
Located in Dubai, Al Qouz 2
like a key and immaculately adorned with brilliant-cut diamonds. Held by a gold chain with a spring
Category

2010s Italian Pendant Necklaces

Materials

Diamond, Gold

Tiffany Co. Clover Key Pendant Necklace 18k White Gold with Diamonds
By Tiffany Co.
Located in New York, NY
" Designer: Tiffany & Co. Model: Clover Key Pendant Necklace 18K White Gold with Diamonds Exterior Material
Category

21st Century and Contemporary More Necklaces

Materials

Diamond, White Gold

0.88 Carat Diamond 18 Karat Yellow Gold Key Stackable Bracelet Bangle
By Butani
Located in Hong Kong, Kowloon
strung with a key pendant and encrusted with diamonds totaling 0.88 carats. Adjustable to your preferred
Category

2010s Hong Kong Contemporary Modern Bracelets

Materials

Diamond, White Diamond, 18k Gold, Yellow Gold

0.89 Carat Diamond 18 Karat Rose Gold Key Stackable Bracelet Bangle
By Butani
Located in Hong Kong, Kowloon
strung with a key pendant and encrusted with diamonds totaling 0.89 carats. Adjustable to your preferred
Category

2010s Hong Kong Contemporary Modern Bracelets

Materials

Diamond, White Diamond, 18k Gold, Rose Gold

0.89 Carat Diamond 18 Karat White Gold Stackable Key Bracelet Bangle
By Butani
Located in Hong Kong, Kowloon
strung with a key pendant and encrusted with diamonds totaling 0.89 carats. Adjustable to your preferred
Category

2010s Hong Kong Contemporary Modern Bracelets

Materials

Diamond, White Diamond, 18k Gold, White Gold

0.90 Carat Diamond 18 Karat White Gold Stackable Key Bracelet Bangle
By Butani
Located in Hong Kong, Kowloon
strung with a key pendant and encrusted with diamonds totaling 0.90 carats. Adjustable to your preferred
Category

2010s Hong Kong Contemporary Modern Bracelets

Materials

Diamond, White Diamond, 18k Gold, White Gold

0.88 Carat Diamond 18 Karat Yellow Gold Key Stackable Bracelet Bangle
By Butani
Located in Hong Kong, Kowloon
strung with a key pendant and encrusted with diamonds totaling 0.88 carats. Adjustable to your preferred
Category

2010s Hong Kong Contemporary Modern Bracelets

Materials

Diamond, White Diamond, 18k Gold, Yellow Gold

0.87 Carat Diamond 18 Karat Rose Gold Key Stackable Bracelet Bangle
By Butani
Located in Hong Kong, Kowloon
strung with a key pendant and encrusted with diamonds totaling 0.87 carats. Adjustable to your preferred
Category

2010s Hong Kong Contemporary Modern Bracelets

Materials

Diamond, White Diamond, 18k Gold, Rose Gold

0.27 Carat Pavé Diamond 18 Karat Rose Gold Key Stackable Ring
By Butani
Located in Hong Kong, Kowloon
a key pendant and encrusted with diamonds totaling 0.27 carats. Current ring size 6.5. For other
Category

2010s Hong Kong Contemporary Signet Rings

Materials

Diamond, White Diamond, 18k Gold, Rose Gold

Tiffany Co. 18 Karat Rose Gold Diamond Crown Key Pendant Necklace
By Tiffany Co.
Located in Boca Raton, FL
Company-Tiffany & Co Style-Diamond Crown Key Pendant Necklace Metal-18k Rose Gold Chain Length- 18k
Category

2010s American Chain Necklaces

Materials

Diamond, 18k Gold, Rose Gold, Yellow Gold

Tiffany Co. Diamond Sterling Silver Daisy Key Pendant Necklace
By Tiffany Co.
Located in Dubai, Al Qouz 2
Radiating hope and optimism, and symbolizing a bright future, the Tiffany keys from Tiffany & Co
Category

2010s American Contemporary Pendant Necklaces

Tiffany Co. Crown Mini Key Diamonds 18k White Gold Pendant Necklace
By Tiffany Co.
Located in Dubai, Al Qouz 2
This beauty from Tiffany & Co. is exquisite and perfectly designed to last! Beautifully crafted from fine materials, it is a stunner. This minimal necklace is truly worth your buy. ...
Category

2010s Italian Pendant Necklaces

Materials

Diamond, White Gold

Tiffany Co. Clover Key Pendant Necklace 18 Karat White Gold with Diamonds
By Tiffany Co.
Located in New York, NY
& Co. Model: Clover Key Pendant Necklace 18K White Gold with Diamonds Exterior Material: 18K White Gold
Category

21st Century and Contemporary More Necklaces

Materials

Diamond, White Gold

Tiffany Co. Tiffany Keys Hue Diamond 18k Yellow Gold Platinum Pendant Necklace
By Tiffany Co.
Located in Dubai, Al Qouz 2
from platinum and 18k yellow gold. The key is decorated with shimmering diamonds and held by a delicate
Category

2010s Italian Contemporary Pendant Necklaces

Materials

Diamond, Yellow Gold, Platinum

Tiffany Co. Large Platinum Petal Key
By Tiffany Co.
Located in Fort Lauderdale, FL
Beautiful Large Tiffany Platinum Petal Key 9.7 Grams 950 Platinum 1.18 Carats of VS1 Clarity and E
Category

2010s American Modern Pendant Necklaces

Materials

Diamond, Platinum

Tiffany Co. Woven Key Pendant Pendant Charms Platinum with Diamonds
By Tiffany Co.
Located in New York, NY
: 1.70 ", Width: 0.60 " Designer: Tiffany & Co. Model: Woven Key Pendant Pendant & Charms Platinum with
Category

21st Century and Contemporary Pendant Necklaces

Tiffany Co. Petals Key Pendant Necklace Platinum with Diamonds Mini
By Tiffany Co.
Located in New York, NY
", Pendant Length: 42.05 mm, Pendant Width: 13.45 mm Designer: Tiffany & Co. Model: Petals Key Pendant
Category

21st Century and Contemporary Pendant Necklaces

Key to My Heart – Georgian Emerald Pendant
Located in Wimberley, TX
of key and heart dangles. The 1850s through the 1870 saw a resurgence of popularity of the
Materials

Emerald, Diamond, 15k Gold

Victorian 15 Karat Yellow Gold Key with a Ruby and Diamond Swallow Brooch
Located in Lancashire, Oldham
being fully implicit. Rubies to symbolise passion and diamonds are ‘forever’ of course. The key - is the
Category

Antique 1880s British Victorian Brooches

Materials

Diamond, Ruby, 15k Gold, Yellow Gold

Tiffany&Co. Petal Key Diamond PT950 - Pendant Top (Precious Metal) - 10.2g
By Elsa Peretti for Tiffany Co.
Located in Oyster Bay, NY
Tiffany&Co. Petal Key Diamond PT950 - Pendant Top (Precious Metal) - 10.2g - Length 6cm / Width
Category

21st Century and Contemporary French Modern Drop Necklaces

Tiffany Co. Daisy Key Diamond 18K Rose Gold Long Pendant Necklace
By Tiffany Co.
Located in Dubai, Al Qouz 2
One look at this beauty from Tiffany and Co. and youll know why diamonds are a girls best friend
Category

2010s Pendant Necklaces

Tiffany Co. Heart Key Pendant Necklace Platinum with Pave Diamonds Mini
By Tiffany Co.
Located in New York, NY
Measurements: Length: 1" Designer: Tiffany & Co. Model: Heart Key Pendant Necklace Platinum with Pave Diamonds
Category

21st Century and Contemporary More Necklaces

Tiffany Co. Crown Key Necklace 18 Karat Yellow Gold and Diamonds
By Tiffany Co.
Located in New York, NY
Measurements: Length: 1.5" Designer: Tiffany & Co. Model: Crown Key Necklace 18K Yellow Gold and Diamonds
Category

21st Century and Contemporary More Necklaces

Materials

Yellow Gold

Tiffany Co. Vintage Oval Key Diamond 18K Rose Gold Pendant Necklace
By Tiffany Co.
Located in Dubai, Al Qouz 2
a key and immaculately adorned with brilliant-cut diamonds, each one artistically placed to sparkle
Category

2010s American Contemporary Pendant Necklaces

Tiffany Co. Daisy Key Pendant Necklace Sterling Silver with Diamond Small
By Tiffany Co.
Located in New York, NY
", Width: 11.90 mm Designer: Tiffany & Co. Model: Daisy Key Pendant Necklace Sterling Silver with Diamond
Category

21st Century and Contemporary Pendant Necklaces

Materials

Sterling Silver

Tiffany Co. Petals Key Pendant Pendant Charms Platinum and Diamonds Large
By Tiffany Co.
Located in New York, NY
/Length: 2.40 ", Width: 0.80 " Designer: Tiffany & Co. Model: Petals Key Pendant Pendant & Charms Platinum
Category

21st Century and Contemporary Pendant Necklaces

Tiffany Co. Daisy Key Pendant Necklace Sterling Silver with Diamond Small
By Tiffany Co.
Located in New York, NY
Measurements: Length: 1.50 ", Width: 11.85 mm Designer: Tiffany & Co. Model: Daisy Key Pendant Necklace
Category

21st Century and Contemporary Pendant Necklaces

Materials

Sterling Silver

Tiffany Co. Keys Fleur de Lis Pendant Necklace Platinum with Diamonds
By Tiffany Co.
Located in New York, NY
: 16", Pendant: 22.50x10.40 mm Designer: Tiffany & Co. Model: Keys Fleur de Lis Pendant Necklace
Category

21st Century and Contemporary More Necklaces

Materials

Platinum

Tiffany Co. Floral Key Pendant Necklace 18k White Gold with Diamonds
By Tiffany Co.
Located in New York, NY
", Pendant Length: 36.25 mm, Pendant Width: 11.55 mm Designer: Tiffany & Co. Model: Floral Key Pendant
Category

21st Century and Contemporary Pendant Necklaces

Materials

White Gold

Tiffany Co. Heart Key Pendant Necklace Platinum and Pave Diamonds Mini
By Tiffany Co.
Located in New York, NY
& Co. Model: Heart Key Pendant Necklace Platinum and Pave Diamonds Mini Exterior Color: Silver Item
Category

21st Century and Contemporary Pendant Necklaces

Victorian 15 Karat Gold Pearl Dual Sweet Heart, Ruby Key and Diamond Bow Brooch
Located in Lancashire, Oldham
heart, ruby set key and a diamond set bow. A brooch truly loaded with symbolism, this fine and
Category

Antique 1870s British High Victorian Brooches

Materials

Diamond, Pearl, Ruby, Gold, 15k Gold

Tiffany Co. Key Pendant Necklace 18k White Gold and Platinum and Diamonds
By Tiffany Co.
Located in New York, NY
", Pendant Length: 1.50 ", Pendant Width: 0.55 " Designer: Tiffany & Co. Model: Key Pendant Necklace 18K
Category

21st Century and Contemporary Chain Necklaces

Tiffany Co. Daisy Key Pendant Necklace 18 Karat Rose Gold with Diamond
By Tiffany Co.
Located in New York, NY
: Length: 30", Pendant: 2.5x0.75 mm Designer: Tiffany & Co. Model: Daisy Key Pendant Necklace 18K Rose Gold
Category

21st Century and Contemporary More Necklaces

Materials

Rose Gold

Tiffany Co. Atlas Key Pendant Necklace 18 Karat Rose Gold and Diamonds
By Tiffany Co.
Located in New York, NY
1.6", Width 0.65" Designer: Tiffany & Co. Model: Atlas Key Pendant Necklace 18K Rose Gold and Diamonds
Category

21st Century and Contemporary More Necklaces

Materials

Rose Gold

Tiffany Co. Tiffany Keys Daisy Diamond 18k Rose Gold Long Pendant Necklace
By Tiffany Co.
Located in Dubai, Al Qouz 2
Radiating hope and optimism and symbolizing a bright future, the Tiffany keys from Tiffany & Co
Category

2010s Italian Aesthetic Movement Pendant Necklaces

Tiffany Co. Tiffany Enchant Diamond Platinum 18K Gold Quatra Heart Key Penda
By Tiffany Co.
Located in Dubai, Al Qouz 2
pendant is shaped like a key and immaculately adorned with brilliant-cut pink and white diamonds, each one
Category

2010s Italian Contemporary Pendant Necklaces

Tiffany Co. Atlas Key Pendant Pendant Charms 18k Rose Gold with Diamonds
By Tiffany Co.
Located in New York, NY
/Length: 1.35 ", Width: 0.45 " Designer: Tiffany & Co. Model: Atlas Key Pendant Pendant & Charms 18K Rose
Category

21st Century and Contemporary Pendant Necklaces

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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.