Skip to main content

Diamond Key

to
130
779
585
331
261
159
1,062
281
115
77
76
12
24
178
932
2
6
21
5
3
2
6
16
10
1
614
529
8
412
143
54
54
42
to
2
1
233
71
70
16
14
165
157
152
12
10
7
6
5
3
3
2
2
2
2
1,115
36
598
234
Sort By
Van Cleef Arpels Vintage Chrysoprase Coral Diamond Gold Key Pendant Necklace
By Van Cleef Arpels
Located in Greenwich, CT
Wear a key to your heart with this Van Cleef & Arpels vintage, circa 1970, pendant necklace. The 1
Category

Vintage 1970s French Modern Pendant Necklaces

Tiffany Co. Ladies 18K Rose Gold Fleur de Key Bar Diamond Stud Earrings
By Tiffany Co.
Located in Houston, TX
Weight: 0.92 grams One pair of ladies 18K rose gold diamond stud earrings with pushbacks. The metal was
Category

21st Century and Contemporary Unknown Stud Earrings

Materials

Diamond, Gold, 18k Gold, Rose Gold

Art Deco Filigree Diamond Sapphire Engagement Ring 18 Karat White Gold Greek Key
Located in Santa Barbara, CA
. The lacy, open work of the Greek key under gallery delicately supports the hexagon crown boasting a
Category

Vintage 1920s Art Deco Engagement Rings

Materials

Diamond, Blue Sapphire, 18k Gold, White Gold

Antique Art Deco 14k White Gold Diamond Hand Etched Engraved Greek Key Cufflinks
Located in Montclair, NJ
--Stone(s):-- (2) Natural Genuine Diamonds - Single Cut - Pave Set - Nice Brilliant White Diamonds
Category

Antique 19th Century Art Deco Cufflinks

Materials

Diamond, Gold, 14k Gold, White Gold

Pendant of Oval Shape with Greek Key Motif Diamond set in 10K Yellow Gold
Located in West Palm Beach, FL
Perfect little oval 10k yellow gold pendant with a Greek key motif and a diamond centered in a
Category

Antique 1890s American Late Victorian Pendant Necklaces

Materials

Diamond, 10k Gold

14 Karat White Gold Pave Diamond Padlock and Key Charm / Pendant Set 1.00 Carats
Located in Scottsdale, AZ
This delightfully dazzling diamond padlock and key charm set is the perfect addition to your charm
Category

21st Century and Contemporary Unknown Contemporary Pendant Necklaces

Materials

Diamond, Gold, 14k Gold, White Gold

Tiffany Co. Jeweled Heart and Key Necklace
By Tiffany Co.
Located in Darnestown, MD
; tsavorite and amethyst. The center of the heart has an open keyhole with a separate key of diamonds. Each
Category

Late 20th Century Modern Pendant Necklaces

Materials

Amethyst, Diamond, Iolite, Yellow Sapphire, Tsavorite, 18k Gold

Tiffany Co. Sterling Silver Heart Key Pendant Necklace
By Tiffany Co.
Located in Washington Depot, CT
beautiful heart key accented with one round brilliant cut diamond. Suspends from an elegant sterling silver
Category

20th Century Pendant Necklaces

Materials

Diamond, Sterling Silver

Tiffany Co. Tiffany Keys Diamond Crown Pendant in 18k Rose Gold 0.11 CTW
By Tiffany Co.
Located in New York, NY
Tiffany & Co. Tiffany Keys Diamond Crown Pendant in 18k Rose Gold 0.11 CTW PRIMARY DETAILS SKU
Category

21st Century and Contemporary Pendant Necklaces

Materials

Rose Gold

Georgios Collections 18 Karat Yellow Gold Greek Key Ruby Sapphire Emerald Ring
By Georgios Collections Inc
Located in Astoria, NY
S.Georgios designer 18 Karat Yellow Gold Ring all Hand Made featuring the Greek Key design
Category

2010s Greek Classical Greek Band Rings

Materials

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

Salavetti Diamond Brown Diamond Tsavorite 18 Karat White Gold Charm Ring
Located in Philadelphia, PA
Designed as a band with 3 articulated charms - a padlock, a key and a diamond Padlock set with
Category

21st Century and Contemporary Italian Contemporary Fashion Rings

Materials

Diamond, Brown Diamond, Tsavorite, 18k Gold

2 Carat Victorian Style Diamond Drop Earrings
Located in Chicago, IL
, exuding a timeless beauty that never fades. Key Features: Exquisite Diamonds: Each earring showcases a
Category

Early 2000s Unknown Victorian Drop Earrings

Materials

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

Diamond Tennis Bracelet in 18K White Gold
By Nina Zhou
Located in Rowland Heights, CA
Introducing our exquisite 18k white gold diamond tennis bracelet—a stunning symbol of timeless
Category

21st Century and Contemporary American Modern Tennis Bracelets

Materials

Diamond, 18k Gold, White Gold

Breitling Starliner 32mm Mother Of Pearl Diamond Bezel Watch
By Breitling
Located in New York, NY
stainless steel design. **Key Features:** 1. **Diamond Bezel and Dial:** - The watch features a diamond
Category

21st Century and Contemporary Swiss Modern Wrist Watches

Materials

Diamond, Pearl, Yellow Gold, Stainless Steel

Nina Zhou Diamond Tennis Bracelet in 18K White Gold
By Nina Zhou
Located in Rowland Heights, CA
Introducing our exquisite 18k white gold diamond tennis bracelet—a stunning symbol of timeless
Category

21st Century and Contemporary American Modern Tennis Bracelets

Materials

Diamond, White Gold, 18k Gold

Chromia 0.54ct White Diamond (D-Flawless) 18K White Gold Earrings
Located in New York, NY
Elevate your elegance with this stunning 0.40 carat White Diamond Ring, beautifully set in
Category

21st Century and Contemporary Indian Modern Stud Earrings

Materials

White Diamond, 18k Gold, White Gold

Star Motif Ring White Diamonds 0.99 Carats White Gold
Located in Bergamo, BG
shine as brightly as the stars. Key Features: White Diamonds: 0.99 carats, D E F color, VVS1/VVS2
Category

Late 20th Century Italian Band Rings

Materials

White Diamond, 18k Gold, White Gold

Art Deco Style Diamond Sapphire 18K Yellow Gold Musical Scales Necklace
Located in New York, NY
necklace encorporates notes, scales, a large clef key, diamonds and sapphires beautifully rendered in 18K
Category

20th Century Art Deco Link Necklaces

Materials

Diamond, Sapphire, 18k Gold, Yellow Gold

Bold Yellow Gold Band Ring White Diamonds 0.95 Carats
Located in Bergamo, BG
someone who values sophistication and distinctive style. Key Features: White Diamonds: 0.95 carats, D E
Category

Late 20th Century Italian Band Rings

Materials

White Diamond, 18k Gold, Yellow Gold

G.I.A. Certified 1.27 Carat Old Mine Diamond Platinum Engagement Ring
Located in Miami, FL
Elegant Vintage Platinum Diamond Engagement Ring - 1.27 Carat GIA Certified Old Mine Diamond
Category

Vintage 1940s Unknown Art Deco Engagement Rings

Materials

Diamond, Platinum

Patek Philippe Les Grecques 18K Yellow Gold Diamond Dial Hand Wind Men’s Watch
By Patek Philippe
Located in New York, NY
decorative Greek key border and diamond hour markers, adding understated brilliance while preserving the
Category

Mid-20th Century Wrist Watches

Materials

Diamond, 18k Gold

Vintage 18K Yellow Gold Frog Brooch with Diamonds and Cabochon Emeralds Eyes
Located in New York, NY
) White diamonds highlight key elements of the frog, producing a striking interplay of brilliance against
Category

20th Century American Contemporary Brooches

Materials

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

Tiffany Co. Quatra Heart Rose Gold Diamond Key Pendant
By Tiffany Co.
Located in New York, NY
cut diamond. The length of the key is also pave set for an estimated total carat weight of 0.35 ct
Category

2010s Pendant Necklaces

Materials

Diamond, 18k Gold, Rose Gold

Tiffany Co. Vintage Oval Rose Gold Diamond Key Charm
By Tiffany Co.
Located in New York, NY
Authentic Tiffany & Co. 'Vintage Oval' key charm crafted in 18 karat rose gold and set with
Category

2010s Pendant Necklaces

Materials

Diamond, 18k Gold, Rose Gold

Tiffany Co. Cobblestone Diamond and Ruby Key Charm
By Tiffany Co.
Located in New York, NY
Keys Metal: Platinum Gemstone: Diamond, Ruby Condition: Excellent Wear: Consistent with age and use
Category

2010s Pendant Necklaces

Materials

Diamond, Ruby, Platinum

Tiffany Co. Ornate Heart Key Platinum and Diamond Pendant
By Tiffany Co.
Located in New York, NY
shaped design at the top of the key, the pendant is adorned with pear shaped and round cut diamonds for
Category

2010s Contemporary Pendant Necklaces

Materials

Diamond, Platinum

Tiffany Co. Mini Crown Key Rose Gold Diamond Pendant
By Tiffany Co.
Located in New York, NY
Authentic Tiffany & Co. 'Mini Crown Key' pendant crafted in 18 karat rose gold features a key
Category

2010s More Jewelry

Materials

Diamond, 18k Gold, Rose Gold

Tiffany Co. Rose Gold and Diamond Crown Key Pendant Necklace
By Tiffany Co.
Located in New York, NY
Authentic Tiffany & Co. 'Crown Key' pendant crafted in 18 karat rose gold and set with an estimated
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, 18k Gold, Rose Gold

Tiffany Co. White Gold and Diamond Filigree Heart and Key Pendant Necklace
By Tiffany Co.
Located in New York, NY
Authentic Tiffany & Co. 3-dimensional 'Filigree' heart and key pendant crafted in 18 karat white
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, 18k Gold, White Gold

Tiffany Co. Sterling Silver Daisy Key Pendant on Beaded Chain
By Tiffany Co.
Located in New York, NY
Authentic Tiffany & Co. 'Daisy Key' pendant from the Tiffany Keys collection crafted in sterling
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, Sterling Silver

Tiffany Co. Quatra Heart Platinum and Diamond Pendant Necklace
By Tiffany Co.
Located in New York, NY
diamond. The length of the key is also pave set for an estimated total carat weight of 0.35 ct. The
Category

2010s Contemporary Pendant Necklaces

Materials

Diamond, Platinum

Tiffany Co. Atlas Rose Gold Diamond Key Pendant
By Tiffany Co.
Located in New York, NY
Authentic Tiffany & Co. key pendant from the 'Atlas' collection crafted in 18 karat rose gold. The
Category

2010s Pendant Necklaces

Materials

Diamond, 18k Gold, Rose Gold

Tiffany Co. Tiffany Keys Petal Key Platinum Diamond Pendant
By Tiffany Co.
Located in New York, NY
Authentic Tiffany & Co. Petal Key pendant crafted in platinum and set with approximately 1.14
Category

2010s Pendant Necklaces

Materials

Diamond, Platinum

Tiffany Co. Crown Key White Gold Diamond Pendant
By Tiffany Co.
Located in New York, NY
. CIRCA 2020s. Brand: Tiffany & Co. Collection: Tiffany Keys Metal: 18K White Gold Gemstone: Diamond
Category

2010s More Jewelry

Materials

Diamond, 18k Gold, White Gold

Tiffany Co. Tiffany Keys Rose Gold and Diamond Wire Bracelet
By Tiffany Co.
Located in New York, NY
Authentic Tiffany & Co. bracelet from the 'Tiffany Keys' collection crafted in 18 karat rose gold
Category

21st Century and Contemporary Italian Bangles

Materials

Diamond, 18k Gold, Rose Gold

White Gold and Diamond Key Pendant
Located in Verona, IT
18kt white gold key pendant featuring 0.55ct of diamonds. Made in Italy, 2000's. The Pendant comes
Category

21st Century and Contemporary Italian Necklace Enhancers

Materials

Diamond, White Gold

Gabriel Co 14 Karat White Gold 1 Carat Numbered Diamond Key Pendant Necklace
Located in Gainesville, FL
Gabriel & Co 14k White Gold 1CTW Numbered Diamond Key Pendant Necklace 20" You are viewing a
Category

21st Century and Contemporary Unknown Contemporary Pendant Necklaces

Materials

White Diamond, 14k Gold, White Gold

TIFFANY CO Petals Platinum 1.18ctw Diamond Key Pendant
By Tiffany Co.
Located in Lambertville, NJ
Retail: $8,000 Metal: Platinum Marked/tested: T & Co, Pt950 Gemstones/diamonds: Diamonds - 1.18ctw
Category

American Necklace Enhancers

Tiffany Co. Rose Gold And Diamonds Key Pendant Necklace
By Tiffany Co.
Located in Dubai, Al Qouz 2
shape of a key in 18K rose gold metal and flaunting brilliant round cut diamonds, this pendant has a
Category

2010s Italian Contemporary Pendant Necklaces

Materials

18k Gold

Lagos Beloved Sterling Silver 0.29 Carat Diamond Key Pendant Necklace
By Lagos
Located in Columbia, MO
Main Stone Clarity Si1-si2 Main Stone Creation Natural Main Stone Diamond Main Stone Color G/h
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, White Diamond, Silver, Sterling Silver

18 Karat Tiffany Co. Three-Clover Diamond Key Pendant Yellow Gold
By Tiffany Co.
Located in Boca Raton, FL
Tiffany & Co. Three-Clover Key Pendant in 18K Yellow Gold. (3) Round Brilliant Cut Diamonds
Category

2010s Pendant Necklaces

Materials

Diamond, 18k Gold, Yellow Gold

Fancy Pink 0.16 ct Diamond and 0.06 ct White Diamond Key Pendant
By HY JEWELLERY
Located in Knightsbridge, GB
FANCY PINK KEY PENDANT - 0.92 CT Set in 18K White gold Fancy pink diamond weight: 0.16 ct [ 1
Category

2010s British Modern Pendant Necklaces

Materials

White Diamond, Pink Diamond, 18k Gold

Tiffany Co. Kaleidoscope Diamond Platinum Key Pendant Necklace
By Tiffany Co.
Located in Hartsdale, NY
Tiffany & Co. Kaleidoscope Platinum & Diamond Key Pendant Necklace. Platinum Key is encrusted
Category

2010s Pendant Necklaces

Materials

White Diamond, Platinum

Diamond Greek Key Pattern Bangle
Located in Amsterdam, NL
A white gold and diamond bracelet, the openworked hinged links decorated with meander motifs and
Category

21st Century and Contemporary Unknown Link Bracelets

Materials

Diamond, 18k Gold

Diamond Greek Key Pattern Ring
Located in Amsterdam, NL
A white gold and diamond ring, the openworked ring decorated with meander motifs, set to the front
Category

21st Century and Contemporary Unknown Band Rings

Materials

Diamond, 18k Gold

Tiffany Co. Tiffany Keys Daisy Key Diamond 18K Yellow Gold Pendant
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, Yellow Gold

Tiffany Co. Tiffany Keys Diamond 18K White Gold Heart Key Pendant
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 Jewelry

Materials

Diamond, White Gold

Tiffany Co. Diamond Platinum Key Charm
By Tiffany Co.
Located in Vail, CO
Key charm, the blade set with three baguette-cut and three round-cut diamonds with the handle pavé
Category

21st Century and Contemporary American Charm Bracelets

Materials

Diamond, White Diamond, Platinum

Black Diamond, White Diamond and Ruby Skeleton Key Pendant
By Theo Fennell
Located in London, GB
3.63ct Diamond snake with 0.16ct Ruby eyes twists around the mysterious 6.40ct Black Diamond Skeleton Key
Category

Early 2000s Pendant Necklaces

Materials

White Diamond, Black Diamond, Ruby, 18k Gold

Tiffany Co. Tiffany Keys Modern Keys Diamond 18k 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 Pendant Necklaces

Tiffany Co. Tiffany Keys Daisy Key Diamond 18K Rose Gold Pendant
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 Pendant Necklaces

Tiffany Co. Tiffany Keys Diamond 18K White Gold Heart Key Pendant
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 Unknown Contemporary Pendant Necklaces

Tiffany Co. Tiffany Keys Diamond 18K White Gold Heart Key Pendant
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. 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

Greek Key Design Diamond Graduating Collar Necklace
Located in Agoura Hills, CA
Crafted in 18K yellow gold, the necklace is composed of graduating greek key design (or Versace
Category

Late 20th Century American Link Necklaces

Materials

Diamond, 18k Gold

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

  • 1
  • ...
Get Updated with New Arrivals
Save "Diamond Key", and we’ll notify you when there are new listings in this category.

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.