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.925 Sterling Silver Diamond Accent Pisces Zodiac Key Pendant Necklace
Located in New York, NY
Pisces zodiac pendant accented by a glimmering bezel set natural diamond. Brilliant beacons of optimism
Category

21st Century and Contemporary Indian Modern Pendant Necklaces

Materials

Diamond, White Diamond, Sterling Silver

.925 Sterling Silver Diamond Accent Aries Zodiac Key Pendant Necklace
Located in New York, NY
Aries zodiac pendant accented by a glimmering bezel set natural diamond. Brilliant beacons of optimism
Category

21st Century and Contemporary Indian Contemporary Pendant Necklaces

Materials

Diamond, White Diamond, Sterling Silver

RUCHI Emerald and Diamond Yellow Gold Key-Shaped Pendant
By Ruchi New York
Located in New York, NY
18K Yellow Gold Emerald: 1.48ct Total Weight. Diamond: 1.21ct Total Weight. All diamonds are G-H/SI
Category

2010s Hong Kong Contemporary Pendant Necklaces

Materials

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

Diamond and 14 Karat Yellow Gold Key Pendant Necklace
Located in Hicksville, NY
Diamond and 14 Karat Yellow Gold Key Pendant Necklace. 16 sparkling diamonds are set on the top of
Category

Late 20th Century American Modern Pendant Necklaces

Materials

Diamond, Gold, 14k Gold, Yellow Gold

Tiffany Co 1.33 Carat Cut Diamond Platinum Key Pendant Necklace
Located in New York, NY
Fancy Yellow VVS1 Diamond Platinum Pendant Necklace Style: Pendant Metal: Platinum Gemstone 1: 0.9 Carat
Category

20th Century Pendant Necklaces

Materials

Diamond, Platinum

Piero Milano 18K White Gold Diamond Heart Key Necklace
By PIERO MILANO
Located in Los Angeles, CA
100% Authentic, 100% Customer Satisfaction Pendant: 15 mm Chain: 0.5 mm Size: 18 Inches Metal: 18K White Gold Hallmarks: 18K Total Weight: 3 Grams Stone Type: 0.09 CT G-H VS-...
Category

2010s Italian More Necklaces

Materials

Diamond, 18k Gold

GIA Certified 0.25 Carat Fancy Pinkish Purple I2 Clarity Diamond
Located in บางรัก, TH
standardized evaluation of a diamond’s key characteristics, ensuring the buyer is well-informed about the
Category

2010s Asian Loose Gemstones

Materials

Diamond

Art Nouveau, Skeleton Key with Diamond Charm Pendant, 24K Gold 0.02ct Diamonds
Located in Bozeman, MT
Skeleton Key and Diamond Charm Pendant, 24kt Yellow Gold and 0.02ct Diamonds, comes with 16" gold
Category

2010s Turkish Art Nouveau Pendant Necklaces

Materials

Diamond, Gold, 24k Gold, Yellow Gold

GIA Certified 0.34 Carat Fancy Purplish Pink I2 Clarity Diamond
Located in บางรัก, TH
unbiased assessment of the diamond’s key characteristics.
Category

2010s Asian Loose Gemstones

Materials

Diamond

.925 Sterling Silver Diamond Accent Aquarius Zodiac Key Pendant Necklace
Located in New York, NY
Aquarius zodiac pendant accented by a glimmering bezel set natural diamond. Brilliant beacons of optimism
Category

21st Century and Contemporary Indian Contemporary Pendant Necklaces

Materials

Diamond, White Diamond, Sterling Silver

.925 Sterling Silver Diamond Accent Cancer Zodiac Key Pendant Necklace
Located in New York, NY
Cancer zodiac pendant accented by a glimmering bezel set natural diamond. Brilliant beacons of optimism
Category

21st Century and Contemporary Indian Contemporary Pendant Necklaces

Materials

Diamond, White Diamond, Sterling Silver

.925 Sterling Silver Diamond Accent Leo Zodiac Key Pendant Necklace
Located in New York, NY
zodiac pendant accented by a glimmering bezel set natural diamond. Brilliant beacons of optimism and hope
Category

21st Century and Contemporary Indian Contemporary Pendant Necklaces

Materials

Diamond, White Diamond, Sterling Silver

.925 Sterling Silver Diamond Accent Libra Zodiac Key Pendant Necklace
Located in New York, NY
Libra zodiac pendant accented by a glimmering bezel set natural diamond. Brilliant beacons of optimism
Category

21st Century and Contemporary Indian Contemporary Pendant Necklaces

Materials

Diamond, White Diamond, Sterling Silver

.925 Sterling Silver Diamond Accent Scorpio Zodiac Key Pendant Necklace
Located in New York, NY
Scorpio zodiac pendant accented by a glimmering bezel set natural diamond. Brilliant beacons of optimism
Category

21st Century and Contemporary Indian Contemporary Pendant Necklaces

Materials

Diamond, White Diamond, Sterling Silver

Ruby Fancy Diamond Pave Set 18K Rose Gold Key Pendant
By Unbranded
Located in Oakton, VA
Dimensions: 4.40x1.30x0.50cm Color: 18K Rose Gold Materials: "47 Fancy Diamonds 0.16 CT 27 Ruby
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, Ruby, 18k Gold, Rose Gold

Green Garnet Fancy Diamond Floral Flower 18K Yellow Key Pendant
By Unbranded
Located in Oakton, VA
Dimensions: 4.40x1.30x0.50cm Color: 18K Yellow Gold Materials: "58 Fancy Diamonds 0.19 CT 8 Green
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, Tsavorite, 18k Gold, Yellow Gold

Green Garnet Fancy Diamond Pave 18K Yellow Gold Key Pendant
By Unbranded
Located in Oakton, VA
Dimensions: 4.40x1.30x0.50cm Color: 18K Yellow Gold Materials: "47 Fancy Diamonds 0.15 CT 27 Green
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, Garnet, 18k Gold, Yellow Gold

Tiffany white gold diamond large petal key pendant and chain.
By Tiffany Co.
Located in Addlestone, GB
TIFFANY & CO, A DIAMOND PETALS KEY PENDANT NECKLACE Tiffany Keys are radiant symbols of a bright
Category

2010s American Pendant Necklaces

Materials

Diamond, White Gold

Georgios Collections 18 Karat Yellow Gold Greek Key Design Diamond Earrings
By Georgios Collections Inc
Located in Astoria, NY
iconic Greek Key motif — a timeless symbol of infinity and unity in ancient Hellenic art. These statement
Category

21st Century and Contemporary Greek Modern Hoop Earrings

Materials

Aquamarine, Diamond, White Diamond, Gold, 18k Gold, Rose Gold, White Gol...

Key Heart Diamond Pendant Necklace in 14k Solid Gold Gold
Located in Chicago, IL
Key Heart necklace Diamond Necklace For Women 14k Solid Gold Gold Heart Key M8 Light weight can be
Category

2010s Indian Pendant Necklaces

Materials

Diamond, Yellow Gold, Gold, 14k Gold

Tiffany Co. Crown Key Diamond Pendant Necklace 18kt White Gold
By Tiffany Co.
Located in San Diego, CA
Tiffany & Co. Crown Key Pendant Necklace Style: Pendant Necklace Ref. number: GRP09001/60011306
Category

2010s Pendant Necklaces

Materials

Diamond, 18k Gold, White Gold

TIFFANY Co. Platinum 1.18ct Diamond 2.25" Petals Key Pendant Necklace 16"
By Tiffany Co.
Located in Los Angeles, CA
TIFFANY Co. Platinum 1.18ct Diamond 2.25" Petals Key Pendant Necklace 16" Metal: Platinum
Category

2010s American Pendant Necklaces

Materials

Diamond, Platinum

18 Carat White Gold Ruby and Diamond Pendant Necklace Heart Key
By La Fleur Jewels
Located in Bangkok, TH
A dream of heart key is a very nice looking. The invisible ruby heart shape of pendant made in 18k
Category

21st Century and Contemporary Thai Modern Pendant Necklaces

Materials

Diamond, Ruby, 18k Gold, White Gold

Versace Fine Jewelry Greek Key Cube VVS Diamond Engagement Ring
By Versace
Located in Miami, FL
Versace Fine Jewelry Greek Key Cube VVS Diamond Engagement Ring Made in Italy An 18k yellow gold
Category

2010s Italian Classical Greek Engagement Rings

Materials

Diamond, 18k Gold, Yellow Gold

Yellow Gold Diamond Ruby Skeleton Key Pendant 18k Round Brilliant .13ctw
Located in Greensboro, NC
Metal Content: 18k Yellow Gold & 18k White Gold Stone Information Natural Diamonds Carat(s
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, Ruby, 18k Gold, Yellow Gold

Art Deco Platinum Diamond Ruby Sapphire Emerald Key Charm Pendant
Located in London, GB
An Art Deco platinum charm pendant designed as a key set with 33 round brilliant cut diamonds with
Category

Vintage 1910s British Art Deco Pendant Necklaces

Materials

Diamond, Emerald, Ruby, Sapphire, Platinum

Certified 2.10 Carat Burmese Peridot Diamond Ring in 18K White Gold
Located in KOWLOON, HK
the peridot's green hue and enhances the overall sparkle of the diamonds. Key Features 2.10 Carat
Category

2010s Hong Kong Modern Cocktail Rings

Materials

Diamond, Peridot, 18k Gold, White Gold

.925 Sterling Silver Diamond Accent Virgo Zodiac Key 18" Pendant Necklace
Located in New York, NY
Virgo zodiac pendant accented by a glimmering bezel set natural diamond. Brilliant beacons of optimism
Category

21st Century and Contemporary Indian Modern Pendant Necklaces

Materials

Diamond, White Diamond, Sterling Silver

GIA Certified 0.32 Carat M Colour VS2 Clarity Diamond
Located in บางรัก, TH
laboratories worldwide. The certification provides an unbiased report detailing the diamond’s key
Category

2010s Asian Loose Gemstones

Materials

Diamond

Estate 14k Yellow Gold 0.40ctw Diamond Heart Shaped Skeleton Key Pendant
Located in Montclair, NJ
–Stone(s)– (Numerous) Natural Genuine Diamonds - Round Brilliant Cut - Pave Set - G-I Color - SI2
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, Gold, 14k Gold, Yellow Gold

Georgios Collections 18 Karat Yellow Gold Greek Key Design Diamond Pendant
By Georgios Collections Inc
Located in Astoria, NY
modern Greek Key design, symbolizing eternity and unity. This elegant pendant is adorned with brilliant
Category

21st Century and Contemporary Greek Classical Greek Pendant Necklaces

Materials

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

14mm Tahitian Pearl 1.09 Carats diamond Ring in 18K White Gold
Located in KOWLOON, HK
enhances the overall sparkle of the diamonds. Key Features Large Tahitian Pearl: The centerpiece of this
Category

2010s Hong Kong Modern Cluster Rings

Materials

Diamond, South Sea Pearl, Pearl, 18k Gold, White Gold

18 Carat White Gold Ruby and Diamond Pendant Necklace Heart Key
By La Fleur Jewels
Located in Bangkok, TH
A dream of heart key is a very nice looking. The invisible ruby heart shape of pendant made in 18k
Category

2010s Thai Modern Pendant Necklaces

Materials

Diamond, Ruby, 18k Gold, White Gold

18 Carat White Gold Ruby and Diamond Pendant Necklace Heart Key
By La Fleur Jewels
Located in Bangkok, TH
A dream of heart key is a very nice looking.The invisible ruby heart shape of pendant made in 18k
Category

21st Century and Contemporary Thai Modern Pendant Necklaces

Materials

Diamond, Ruby, 18k Gold, White Gold

Green Garnet Fancy Diamond Pave Clover 18K Yellow Gold Key Pendant
By Unbranded
Located in Oakton, VA
Dimensions: 4.40x1.30x0.50cm Color: 18K Yellow Gold Materials: "47 Fancy Diamonds 0.15 CT 27 Green
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, Garnet, 18k Gold, Yellow Gold

Sybarite Heart Key Dangle Ring 18 Karat White Gold White Diamonds
By Sybarite Jewellery
Located in London, GB
Everyday dangle ring to add a little charm to your look, this ring is the key to completing your
Category

2010s Italian Fashion Rings

Materials

White Diamond, Black Diamond, Gold, 18k Gold, Mixed Metal

Georgios Collections 18 Karat Gold Diamond Classic Greek Key Design Bracelet
By Georgios Collections Inc
Located in Astoria, NY
S.Georgios designer Greek Key bracelet in solid yellow gold 18 karats all handmade with the Greek
Category

21st Century and Contemporary Greek Classical Greek Link Bracelets

Materials

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

Tiffany Company 18K Two Tone Gold Ruby and Diamond Butterfly Key Pendant
By Tiffany Co.
Located in Philadelphia, PA
This Tiffany & Co. key pendant from the Tiffany Keys collection, features a diamond-pavé key shape
Category

21st Century and Contemporary Pendant Necklaces

Materials

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

Georgios Collections 18 Karat Yellow Gold Greek Key Diamond Pendant Necklace
By Georgios Collections Inc
Located in Astoria, NY
carved forming a Greek Key design, which is the symbol of eternity. This stunning pendant features
Category

21st Century and Contemporary Greek Classical Greek Pendant Necklaces

Materials

Diamond, White Diamond, Emerald, Ruby, Sapphire, Gold, 18k Gold, Yellow ...

Georgios Collections 18 Karat Yellow Gold Diamonds Greek Key Pendant Necklace
By Georgios Collections Inc
Located in Astoria, NY
S.Georgios designer 18 Karat Yellow Gold Pendant Necklace with Diamonds shaping the Greek Key
Category

21st Century and Contemporary Greek Classical Greek Pendant Necklaces

Materials

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

Tiffany Co. Natural 0.58 Carat Diamond Oval Key Platinum Necklace In Stock
By Tiffany Co.
Located in Boca Raton, FL
Tiffany & Co. Platinum Natural 0.58 Carat Diamond Oval Key Necklace Tiffany & Co. platinum
Category

21st Century and Contemporary American Modernist Pendant Necklaces

Materials

Diamond, White Diamond, Platinum

14mm South Sea Pearl 0.96 Carats diamond Ring in 18K White Gold
Located in KOWLOON, HK
white color and enhances the overall sparkle of the diamonds. Key Features Large South Sea Pearl: The
Category

2010s Hong Kong Modern Cluster Rings

Materials

Diamond, South Sea Pearl, 18k Gold, White Gold

Montblanc Limited Edition Charm Bracelet 18k Gold Key Diamond Sterling Silver
By Montblanc
Located in Northbrook, IL
features a variety of intricate charms, including a key, a clover, and a book, each with unique detailing
Category

21st Century and Contemporary Charm Bracelets

Materials

Diamond, 18k Gold, Rose Gold, Sterling Silver

Georgios Collections 18 Karat Yellow Gold Diamond Greek Key Pendant Necklace
By Georgios Collections Inc
Located in Astoria, NY
carved forming a Greek Key design, which is the symbol of eternity. This stunning pendant features 2
Category

21st Century and Contemporary Greek Classical Greek Pendant Necklaces

Materials

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

18K Yellow Gold Diamond Multi Gemstone Greek Key Stud Earrings
By VR Jewels
Located in New York, NY
illuminating diamonds making a statement. Square cut emerald, ruby, sapphire studs with diamonds in 18K gold
Category

21st Century and Contemporary American Classical Greek Stud Earrings

Materials

Diamond, Emerald, Multi-gemstone, Ruby, Blue Sapphire, Sapphire, 18k Gol...

GIA Certified 0.71 Carat Fancy Purplish Pink SI2 Clarity Diamond
Located in บางรัก, TH
is desired. A GIA-certified diamond description includes specific details about the diamond’s key
Category

2010s Asian Loose Gemstones

Materials

Diamond

Georgios Collections 18 Karat White Gold Diamond Sapphire Greek Key Bracelet
By Georgios Collections Inc
Located in Astoria, NY
S.Georgios designer link bracelet in solid 18 karats White Gold all handmade with the Greek Key
Category

21st Century and Contemporary Greek Classical Greek Link Bracelets

Materials

Diamond, White Diamond, Sapphire, Gold, 18k Gold, White Gold

.925 Sterling Silver 1/6 Carat Diamond Symbol Key Pendant Necklace
Located in New York, NY
Loaded with elegance and spark, this diamond pendant features a unique design and various sparkling
Category

21st Century and Contemporary Indian Modern Pendant Necklaces

Materials

Diamond, Gold Plate, Yellow Gold, Sterling Silver

Georgios Collections 18 Karat Yellow Gold Diamond Greek Key Pendant Necklace
By Georgios Collections Inc
Located in Astoria, NY
the Greek Key design, which is the symbol of eternity. This stunning pendant necklace features a
Category

21st Century and Contemporary Greek Contemporary Pendant Necklaces

Materials

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

Small Love Key Charm Pendant Necklace with Diamond, 24kt Solid Gold
Located in Bozeman, MT
Small Love Key Charm Pendant Necklace with Diamond, 24kt Solid Gold by Prehistoric Works of
Category

2010s Turkish Edwardian Pendant Necklaces

Materials

Diamond, Gold, 24k Gold, Yellow Gold

Heart Aand Key 14k Solid Gold Flexible Bracelet with Genuine Diamond
Located in Chicago, IL
Heart And Key 14k Solid Gold Flexible Bracelet With Genuine Diamond Wedding Gift Light weight can
Category

2010s Indian Bangles

Materials

Diamond, Rose Gold, Gold, 14k Gold

Tiffany Co. Diamond and Ruby Large Key Pendant Necklace in Polished Platinum
By Tiffany Co.
Located in Scottsdale, AZ
This stunning Tiffany & Co. diamond and ruby key pendant is an elegant work of art. Made from
Category

21st Century and Contemporary Unknown Contemporary Pendant Necklaces

Materials

Diamond, White Diamond, Ruby, Platinum

Tiffany Co. 18K Yellow Gold Diamond Large 2.5" Daisy Key Pendant Necklace
By Tiffany Co.
Located in New York, NY
TIFFANY & CO. 18K YELLOW GOLD LARGE 2.5" DAISY KEY PENDANT NECKLACE 18" *Daisy key pendant with
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, 18k Gold, Yellow Gold

Key Magic Pendant in 18k Gold with Diamonds and Pearl Shell
Located in Hong Kong, HK
Amazing Pendant with Diamonds & Brown Diamonds Exclusive work of great handcraft ship! Total
Category

21st Century and Contemporary Hong Kong Modern Pendant Necklaces

Materials

Diamond, Brown Diamond, Pearl, 18k Gold, Rose Gold

Georgios Collections 18 Karat Yellow Gold Diamond Eternity Greek Key Band Ring
By Georgios Collections Inc
Located in Astoria, NY
S.Georgios designer solid yellow gold 18 karat diamond band ring is all handmade and has the design
Category

21st Century and Contemporary Greek Classical Greek Band Rings

Materials

Diamond, White Diamond, Blue Diamond, Black Diamond, Gold, 18k Gold, Yel...

Key to My Heart Diamond Cuff Bracelet in 18K White Gold
Located in Wan Chai District, HK
This stunning key to my heart diamond cuff bracelet is the perfect way to show your love and
Category

21st Century and Contemporary Hong Kong Contemporary Cuff Bracelets

Materials

Diamond, 18k Gold, White Gold

Georgios Collections 18 Karat Yellow Gold Diamond Blue Enamel Greek Key Ring
By Georgios Collections Inc
Located in Astoria, NY
This S.Georgios designer Greek Key ring is handmade from solid 18 Karat Yellow Gold and is carved
Category

21st Century and Contemporary Greek Classical Greek Band Rings

Materials

Diamond, White Diamond, Blue Diamond, Yellow Diamond, Pink Diamond, Blac...

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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.