Skip to main content

Diamond Key

to
150
778
584
331
261
159
1,061
281
115
77
76
12
24
178
931
2
6
21
5
3
2
6
16
10
1
613
529
8
411
143
54
54
42
to
2
1
233
71
70
16
14
165
157
151
12
10
7
6
5
3
3
2
2
2
2
1,114
36
595
234
Sort By
5ct Oval-Cut Diamond Full Eternity Wedding Band in 18K White Gold — Elegance
Located in Jaipur, RJ
. Key Features Diamonds:  • Approx. 4.83ct Total Weight (Varies by Size)  • 19 Natural Oval-Cut Diamonds
Category

2010s Indian Art Deco Wedding Rings

Materials

Diamond, 18k Gold, White Gold

GIA-Certified 2.50ct Oval Diamond Double Halo Engagement Ring in 18K White Gold
Located in Jaipur, RJ
powerful symbol of love, legacy, and impeccable taste. Key Features Center Diamond: 2.50ct Natural Oval
Category

2010s Indian Art Deco Engagement Rings

Materials

Diamond, 18k Gold, White Gold

GIA Certified 1.00 ct Marquise‑Cut Diamond Double‑Halo Ring in 18K White Gold
Located in Jaipur, RJ
connoisseur—with this spectacular double‑halo diamond ring. At its core, a 1.00‑carat natural marquise‑cut
Category

2010s Indian Art Deco Cocktail Rings

Materials

Diamond, White Gold, 18k Gold, Gold

David Webb Platinum 18k White Gold Coral, Diamond and Pearl Bead Necklace
By David Webb
Located in New York, NY
and captivating piece that combines coral, pearls, and diamonds in an exquisite design. **Key
Category

20th Century American Modern Beaded Necklaces

Materials

Coral, Diamond, Pearl, 18k Gold, White Gold, Platinum

9ct Marquise-Cut Natural Diamond Tennis Bracelet in 18K White Gold –VS/F-G Color
Located in Jaipur, RJ
An Icon of Grace, Fire, and Unending Elegance This magnificent marquise-cut diamond tennis
Category

2010s Indian Art Deco Tennis Bracelets

Materials

Diamond, White Gold, 18k Gold

Eye-Shaped Vintage Band Ring White Diamonds 0.86 Carats Yellow and White Gold
Located in Bergamo, BG
a lasting impression. Key Features: White Diamonds: 0.86 carats, D E F color, VVS1/VVS2 clarity
Category

Late 20th Century Italian Band Rings

Materials

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

GIA Certified 0.80 ct Oval‑Cut E VS Diamond Halo Stud Earrings in 18K White Gold
Located in Jaipur, RJ
enduring romance. Key Features Center Diamonds  • 0.80 ct Total Two 0.40 ct Natural Oval‑Cut Diamonds
Category

2010s Indian Art Deco Stud Earrings

Materials

Diamond, 18k Gold, White Gold

J. Birnbach GIA Certified 4.37 Carat E VS1 Cushion Cut Diamond Three-Stone Ring
By J. Birnbach
Located in New York, NY
luxury. Key Details: - Center diamond: 4.37-carat cushion brilliant-cut, E color, VS1 clarity (GIA
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Platinum

Jewelry Set from the "Bandhu" Collection: Necklace, Bracelet, and Earrings
By Olivo Micheletto
Located in Milano, Lombardia
earrings complete the set with grace. Key Features: Total diamond count: 1,276 diamonds Total diamond
Category

2010s Italian More Necklaces

Materials

White Diamond, 18k Gold

8.53ctw Tennis Bracelet Set In 14k Yellow Gold
Located in Tampa, FL
Elegant 8.53ctw Diamond Tennis Bracelet in 14k Yellow Gold Elevate your jewelry collection with
Category

2010s American Modern Tennis Bracelets

Materials

Diamond, 14k Gold, Yellow Gold

J. Birnbach 0.92 carat Elongated Cushion Halo Engagement Ring in Rose Gold
By J. Birnbach
Located in New York, NY
design. Key Details: - Center Diamond: 0.92 carat elongated cushion brilliant, F color, SI1 clarity
Category

21st Century and Contemporary American Engagement Rings

Materials

Diamond, Rose Gold

English Silver Pair Cased Chain Driven Fuzee with Original Dial and Blued Hands
Located in Long Beach, CA
: Sterling Silver CIRCA / YEAR: 1840's DIMENSIONS / SIZE: Diameter 57mm MOVEMENT / CALIBER: Key Winding
Category

Antique 1840s British Pocket Watches

Art Deco Emerald and Diamond Plaque Ring
By Janesich
Located in London, GB
in an elaborate geometric frame of diamonds forming a Greek key pattern. The diamonds glitter
Category

Vintage 1920s French Art Deco Cluster Rings

Materials

Diamond, Emerald, Platinum

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

21st Century and Contemporary Chinese Contemporary Pendant Necklaces

Materials

Diamond, White Diamond, Sterling Silver

.925 Sterling Silver Diamond Accent Gemini Zodiac Key Pendant Necklace
Located in New York, NY
Gemini 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 Capricorn Zodiac Key Pendant Necklace
Located in New York, NY
Capricorn 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 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

18k Diamond Key Pendant White Gold
Located in Boca Raton, FL
Diamond Key Pendant in 18K White Gold. (64) Round Brilliant Cut Diamonds weighing 1.50 carat total
Category

2010s Pendant Necklaces

Materials

Diamond, 18k Gold, White Gold

Bloom Diamond Key Necklace in 18k Rose Gold
By Butani
Located in Hong Kong, Kowloon
Bloom Diamond Key Necklace in 18K Rose Gold Inspired by the exquisite petals of the alpine
Category

2010s Hong Kong Pendant Necklaces

Materials

Diamond, Rose Gold

Bloom Diamond Key Necklace in 18k Yellow Gold
By Butani
Located in Hong Kong, Kowloon
Bloom Diamond Key Necklace in 18K Yellow Gold Inspired by the exquisite petals of the alpine
Category

2010s Hong Kong Pendant Necklaces

Materials

Diamond, Yellow Gold

Bloom Diamond Key Necklace in 18k White Gold
By Butani
Located in Hong Kong, Kowloon
Bloom Diamond Key Necklace in 18K White Gold Inspired by the exquisite petals of the alpine
Category

2010s Hong Kong Pendant Necklaces

Materials

Diamond, White Gold

Diamond Key Necklace, White Gold
By Salude
Located in New York, NY
18k solid gold key set with VVS1-2, D-F color diamonds. Pendant only, chain sold separately.
Category

2010s American Pendant Necklaces

Materials

Diamond, 18k Gold, White Gold

Diamond Key Necklace, Yellow Gold
By Salude
Located in New York, NY
18k solid gold key set with VVS1-2, D-F color diamonds. Pendant only, chain sold separately.
Category

2010s American Pendant Necklaces

Materials

Diamond, 18k Gold, Yellow Gold

Tiffany Co 0.06 CTW Diamond Key Flower Pendant Necklace in Sterling
By Tiffany Co.
Located in Vienna, VA
Tiffany & Co 0.06 CTW Diamond Key Flower Pendant Necklace in Sterling Tiffany & Co Diamond Flower
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, Sterling Silver

18 Karat White Gold Diamond Key Pendant on an 18 Karat White Gold Chain
Located in Montreal, Quebec
18Kt White* gold diamond key shape pendant on an 18 Kt gold chain. 3 round brilliant cut diamonds
Category

2010s Canadian Contemporary Pendant Necklaces

Materials

Diamond, 18k Gold, White Gold

Bloom Diamond Key Necklace with Mother of Pearl in 18k White Gold
By Butani
Located in Hong Kong, Kowloon
Bloom Diamond Key Necklace with Mother-of-Pearl in 18K White Gold Inspired by the exquisite petals
Category

2010s Hong Kong Pendant Necklaces

Materials

Diamond, Pearl, White Gold

Bloom Diamond Key Necklace with Mother of Pearl in 18k Yellow Gold
By Butani
Located in Hong Kong, Kowloon
Bloom Diamond Key Necklace with Mother-of-Pearl in 18K Yellow Gold Inspired by the exquisite
Category

2010s Hong Kong Pendant Necklaces

Materials

Diamond, Pearl, Yellow Gold

Bloom Diamond Key Necklace with Mother of Pearl in 18k Rose Gold
By Butani
Located in Hong Kong, Kowloon
Bloom Diamond Key Necklace with Mother-of-Pearl in 18K Rose Gold Inspired by the exquisite petals
Category

2010s Hong Kong Pendant Necklaces

Materials

Diamond, Pearl, Rose Gold

Diamond Key Necklace in 14k White Gold
Located in Montréal, QC
Key necklace with diamonds in white gold 14k. 0.37 ct total weight of diamonds. Dimensions of the
Category

21st Century and Contemporary Canadian Modern Pendant Necklaces

Materials

Diamond, 14k Gold, White Gold

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

18 Karat White Gold Diamond Key Pendent/Charm
Located in Bangkok, TH
The symbolic of the one who own the key is the one who has power to open doors of opportunities
Category

20th Century English Contemporary Pendant Necklaces

Raymond C. Yard Diamond "Keys to My Place" Charm
By Raymond C. Yard
Located in Greenwich, CT
"Keys to My Place" diamond charm in platinum, composed of a platinum key accented by round
Category

2010s Charm Bracelets

Materials

Diamond, Platinum

18k Rose Gold and White Diamonds Key Pendant Necklace
Located in Rome, IT
key pendant, with a heart-shaped head, covered with brilliant cut white diamonds and near the pendant
Category

2010s Italian Contemporary Pendant Necklaces

Materials

White Diamond, Gold, 18k Gold, Rose Gold

Sevan Biçakçi Carnelian and Yellow Diamonds Key Pendant Necklace
By SEVAN BICAKCI
Located in Jackson, WY
opportunities or holding the key to one's heart. Details: Yellow Diamonds 3.1 ct Carnelian 24K Yellow Gold
Category

2010s Turkish Byzantine Pendant Necklaces

Materials

Carnelian, Yellow Diamond, 24k Gold, Sterling Silver

Tiffany Co. Style 18 Carat Diamond Key Pendant Set in 18 Carat White Gold
Located in Malvern, Victoria
18ct White Gold Cobblestone ‘Key’ pendant set with 20 brilliant cut diamonds necklace, styled after
Category

Early 2000s Australian Modern Pendant Necklaces

Materials

Diamond, 18k 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

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

Ileana Makri Black Enamel and Baguette White Diamond Piano Cocktail Ring
By Ileana Makri
Located in Athens, GR
18k yellow gold Piano ring finished with Black enamel and set with baguette diamond "keys" with
Category

Early 2000s Greek Cocktail Rings

Materials

White Diamond, 18k Gold

Georgian Emerald Pearl Diamond Padlock with Matching Chain
Located in New York, NY
emeralds and pearls, and has a dangling diamond and emerald heart, and a diamond key. It also features the
Category

Antique 1810s British Georgian Pendant Necklaces

Materials

Diamond, Emerald, Pearl, 15k Gold, 18k Gold

Diamond Pink Gold Key Pendant
Located in Ramat Gan, IL
Indulge in the epitome of sophistication with our Diamond Pink Gold Key Pendant. This exquisite
Category

21st Century and Contemporary Israeli Contemporary Pendant Necklaces

Materials

Diamond, Gold

Diamond Yellow Gold Key Pendant
Located in Ramat Gan, IL
Indulge in the epitome of sophistication with our Diamond Yellow Gold Key Pendant. This exquisite
Category

21st Century and Contemporary Israeli Contemporary Pendant Necklaces

Materials

Diamond, Yellow Gold

Diamond gold key necklace
Located in Montréal, QC
Necklace with natural diamonds in 14k yellow gold. Diamonds 0.27ct total weight. Chain 16
Category

21st Century and Contemporary Canadian Artist Pendant Necklaces

Diamond Greek Key Pattern Earclips
Located in Amsterdam, NL
A pair of white gold and diamond earclips, the openworked earclips decorated with meander motifs
Category

21st Century and Contemporary Unknown Clip-on Earrings

Materials

Diamond, 18k Gold

1940s Violin Key Diamond Platinum Brooch
Located in Frankfurt, DE
Exceptionally handcrafted piece made from 950/- platinum, designed as a stylised violin key or
Category

Vintage 1940s Brooches

Materials

Diamond, Platinum

Crivelli Key Diamond Pendant with Chain
By Crivelli
Located in Toronto, Ontario
Crivelli Key Diamond Pendant with chain 0.68 carat diamonds on Key pendant VS clarity E F colour
Category

2010s Italian Pendant Necklaces

Materials

Diamond, 18k Gold

Key emerald and diamond necklace
Located in Montréal, QC
Pendant with emeralds and diamonds in 14k yellow gold. 0.385 ct total weight of emeralds
Category

21st Century and Contemporary Canadian Artist Pendant Necklaces

Elegant Diamond and Gold Key Pendant
Located in New York, NY
An intricately designed pendant with 0.44Ct of diamonds set in 18K white gold.
Category

2010s Pendant Necklaces

Materials

Diamond, Gold, 18k Gold, White Gold

Love Key Diamond Pendant in White Gold
Located in New York, NY
Stock# P7047 Diamonds Shape: Round Diamonds Weight: 0.36ct Diamond Color: G-H Diamond Clarity: VS
Category

2010s American Contemporary Pendant Necklaces

Materials

Diamond, White Gold

Love Key Diamond Pendant in White Gold
Located in New York, NY
Stock# P7080 Diamonds Shape: Round Diamonds Weight: 0.42ct Diamond Color: G-H Diamond Clarity: VS
Category

2010s American Contemporary Pendant Necklaces

Materials

Diamond, White Gold

Diamond Love Key Pendant 18k White Gold
By AS29
Located in Hong Kong, HK
Diamond Love Key Pendant 18K White Gold The key to our heart is love, and you can carry it always
Category

2010s Hong Kong Contemporary Pendant Necklaces

Materials

Diamond, White Gold, 18k Gold

Dimos 18k Gold Greek Key Diamonds Bracelet
Located in Athens, GR
Next Greek key. A 5000 old design and one of the most World recognized pattern just turned the page
Category

21st Century and Contemporary Greek Classical Greek Bangles

Materials

Diamond, 18k Gold

Sapphire Diamond Gold Greek Key Collar Necklace
Located in Scottsdale, AZ
This fabulous collar necklace is made in solid 18k yellow gold. It features both round diamonds and
Category

21st Century and Contemporary Greek Modern Link Necklaces

Materials

Diamond, Sapphire, 18k Gold, Yellow Gold

Doryn Wallach Greek Key Diamond and Gold Ring
Located in New York, NY
Doryn Wallach's Greek Key ring features 0.20 carats of white and black diamonds, in finely ribbed
Category

21st Century and Contemporary American Contemporary More Rings

Materials

White Diamond, Black Diamond, 18k Gold

European Diamond Pearl Greek Key Ribbon Ring
Located in METAIRIE, LA
Featuring a total of approximately 1.50 carats of Nearly Colorless Old Round European cut Diamonds
Category

Vintage 1950s Cocktail Rings

Materials

Diamond, Pearl, 14k Gold, 18k Gold, Yellow Gold

Diamond Love Key Pendant 18k Yellow Gold F
By AS29
Located in Hong Kong, HK
Diamond Love Key Pendant 18K Yellow Gold The key to our heart is love, and you can carry it
Category

2010s Hong Kong Contemporary Pendant Necklaces

Materials

Diamond, Yellow Gold, 18k Gold

Sasha Primak Gold and Diamond Ornate Key Pendant
By Sasha Primak
Located in New York, NY
Exquisite 18k yellow gold key featuring an elegantly designed head, a bezel set diamond and a
Category

Early 2000s American Pendant Necklaces

Materials

Diamond, 18k Gold

AnaKatarina White Gold and Diamond Love Key Studs
By AnaKatarina
Located in Dedham, MA
18K Yellow Gold, .0384 Diamond The first agreement inspired the Impeccable words collection in the
Category

21st Century and Contemporary American Contemporary Stud Earrings

Materials

Diamond, 18k Gold, White Gold

  • 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.