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GIA Certified 1.02 Carat Fancy Deep Orange Brown Si2 Clarity Diamond
Located in บางรัก, TH
certification provides a detailed and unbiased assessment of the diamond's key characteristics: cut, color
Category

2010s Asian Loose Gemstones

Materials

Diamond

GIA Certified 0.53 Carat Fancy Light Bluish Green SI2 Clarity Diamond
Located in บางรัก, TH
analysis of the diamond's key characteristics, including cut, color, clarity, and carat weight, often
Category

2010s Asian Loose Gemstones

Materials

Diamond

GIA Certified 0.43 Carat Fancy Light Orangy Pink SI1 Clarity Diamond
Located in บางรัก, TH
assessment of the diamond’s key attributes cut, color, clarity, and carat weight. These characteristics are
Category

2010s Asian Loose Gemstones

Materials

Diamond

GIA Certified 1.11 Carat Fancy Light Brownish Yellow VS2 Clarity Diamond
Located in บางรัก, TH
the diamond’s key characteristics, including cut, color, clarity, and carat weight. GIA's grading
Category

2010s Asian Loose Gemstones

Materials

Diamond

GIA Certified 0.75 Light Green SI2 Clarity Diamond
Located in บางรัก, TH
. The GIA certification provides an in depth and unbiased report on the diamond’s key characteristics
Category

2010s Asian Loose Gemstones

Materials

Diamond

GIA Certified 0.33 Carat Fancy Dark Gray Yellowish Green SI2 Clarity Diamond
Located in บางรัก, TH
in diamond grading. The certification provides a detailed, unbiased report on the diamond’s key
Category

2010s Asian Loose Gemstones

Materials

Diamond

GIA Certified 0.49 Carat Fancy Dark Gray Yellowish Green I1 Clarity Diamond
Located in บางรัก, TH
industry. The GIA certificate provides a detailed, accurate assessment of the diamond's key characteristics
Category

2010s Asian Loose Gemstones

Materials

Diamond

GIA Certified 1.00 Carat Fancy Blue VVS1 Clarity Diamond
Located in บางรัก, TH
detailed and unbiased assessment of the diamond’s key characteristics, including carat weight, cut, color
Category

2010s Asian Loose Gemstones

Materials

Diamond

GIA Certified 0.46 Carat Faint Pink VS2 Clarity Diamond
Located in บางรัก, TH
on the diamond’s key characteristics, including its cut, color, clarity, and carat weight, known as
Category

2010s Asian Loose Gemstones

Materials

Diamond

GIA Certified 0.30 Carat Light Pink I1 Clarity Diamond
Located in บางรัก, TH
authorities in gemology. GIA certification provides an objective, detailed analysis of a diamond's key
Category

2010s Asian Loose Gemstones

Materials

Diamond

GIA Certified 0.55 Carat Faint Pink SI2 Clarity Diamond
Located in บางรัก, TH
diamond’s key characteristics, known as the 4 Cs: carat weight, cut, color, and clarity. This certification
Category

2010s Asian Loose Gemstones

Materials

Diamond

GIA Certified 4.49 Carat Faint Pink VVS1 Clarity Diamond
Located in บางรัก, TH
certification provides a comprehensive and unbiased assessment of the diamond’s key attributes, known as the 4
Category

2010s Asian Loose Gemstones

Materials

Diamond

GIA Certified 0.56 Carat Light Pink SI2 Clarity Diamond
Located in บางรัก, TH
diamond industry. The certification provides a comprehensive report on the diamond’s key characteristics
Category

2010s Asian Loose Gemstones

Materials

Diamond

GIA Certified 0.50 Carat Fancy Yellow I1 Clarity Diamond
Located in บางรัก, TH
objective and accurate assessment of a diamond’s key characteristics, known as the 4 Cs carat weight, cut
Category

2010s Asian Loose Gemstones

Materials

Diamond

18 karat white gold bicolor ring Aquamarina, Key of Amsterdam collection
By Bonebakker
Located in Amsterdam, NL
This smashing ring from the Bonebakker Key of Amsterdam collection is flawless. It matches the
Category

21st Century and Contemporary Dutch Modern Cocktail Rings

Materials

Aquamarine, Diamond, 18k Gold, White Gold

GIA Certified Fancy Pink SI2 Clarity Diamond
Located in บางรัก, TH
diamond’s key attributes, including its carat weight, cut, color, and clarity, also known as the 4 Cs: This
Category

2010s Asian Loose Gemstones

Materials

Diamond

Victorian Gunmetal Double Skeleton Key Fob Pendant with Hidden Tools
Located in Narberth, PA
silver and sparkling rose cut diamonds. Both keys hang from a large gunmetal ring, which has an opening
Category

Antique 1880s Unknown Victorian Necklace Enhancers

Materials

Diamond, 18k Gold, Rose Gold, Mixed Metal

GIA Certified 1.32 Carat Fancy Pink Brown I1 Clarity Diamond
Located in บางรัก, TH
GIA certification provides an unbiased, detailed report on the diamond's key attributes, including the
Category

2010s Asian Loose Gemstones

Materials

Diamond

GIA Certified 0.70 Carat Fancy Green Yellow SI1 Clarity Diamond
Located in บางรัก, TH
provides a comprehensive, unbiased report detailing the diamond's key characteristics, including the 4 Cs
Category

2010s Asian Loose Gemstones

Materials

Diamond

GIA Certified 0.42 Carat Very Light Pink I1 Clarity Diamond
Located in บางรัก, TH
authorities in the diamond industry. The GIA provides a detailed, unbiased report on the diamond's key
Category

2010s Asian Loose Gemstones

Materials

Diamond

GIA Certified 0.55 Carat Very Light Green VS2 Clarity Diamond
Located in บางรัก, TH
provides detailed information about the diamond's key characteristics, including the 4 Cs cut, color
Category

2010s Asian Loose Gemstones

Materials

Diamond

GIA Certified 0.90 Carat Fancy Light Yellow SI2 Clarity Diamond
Located in บางรัก, TH
provides an objective, detailed report on the diamond’s key characteristics, including the 4 Cs: cut, color
Category

2010s Asian Loose Gemstones

Materials

Diamond

David Webb Bombe Platinum 18k Yellow Gold Fluted Coral Ring
By David Webb
Located in New York, NY
round diamonds. **Key Features:** 1. **Material:** - The ring is expertly crafted with a
Category

20th Century American Modern Cocktail Rings

Materials

Coral, Yellow Gold, Platinum

GIA Certified 1.27 Carat Fancy Light Yellow Green SI1 Clarity Diamond
Located in บางรัก, TH
accurate assessment of the diamond’s key attributes, including carat weight, cut, color, and clarity
Category

2010s Asian Loose Gemstones

Materials

Diamond

GIA Certified 3.50 Carat Fancy Brownish Greenish Yellow VS2 Clarity Diamond
Located in บางรัก, TH
accurate, detailed report of the diamond’s key attributes, including the 4 Cs: carat weight, cut, color
Category

2010s Asian Loose Gemstones

Materials

Diamond

Georgios Collections 18 Karat Gold Greek Key Emerald, Sapphire and Ruby Pendant
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 ...

GIA Certified 0.46 Carat Fancy Vivid Yellow Orange SI2 Clarity Diamond
Located in บางรัก, TH
. The GIA provides a comprehensive, unbiased assessment of a diamond's key characteristics, known as the
Category

2010s Asian Loose Gemstones

Materials

Diamond

GIA Certified 0.40 Carat Fancy Light Purplish Pink SI2 Clarity Diamond
Located in บางรัก, TH
organizations in the world. The GIA provides a detailed and unbiased assessment of the diamond’s key
Category

2010s Asian Loose Gemstones

Materials

Diamond

GIA Certified 0.30 Carat Faint Pink SI1 Clarity Diamond
Located in บางรัก, TH
provides an objective and detailed report on a diamond’s key attributes, including its carat weight, color
Category

2010s Asian Loose Gemstones

Materials

Diamond

GIA Certified 0.45 Carat Faint Pink I1 Clarity Diamond
Located in บางรัก, TH
diamond's key characteristics, known as the Four Cs: carat weight, color, clarity, and cut. GIA's expert
Category

2010s Asian Loose Gemstones

Materials

Diamond

GIA Certified 1.20 Carat Light Yellow Green VS1 Clarity Diamond
Located in บางรัก, TH
. The GIA certification provides an unbiased and accurate assessment of the diamond's key
Category

2010s Asian Loose Gemstones

Materials

Diamond

GIA Certified 0.70 Carat Very Light Pink SI1 Clarity Diamond
Located in บางรัก, TH
provides a detailed, unbiased report on the diamond’s key characteristics, commonly referred to as the Four
Category

2010s Asian Loose Gemstones

Materials

Diamond

GIA Certified 0.34 Carat Very Light Pink I1 Clarity Diamond
Located in บางรัก, TH
in the diamond industry. GIA certification provides a detailed and unbiased report on a diamond’s key
Category

2010s Asian Loose Gemstones

Materials

Diamond

GIA Certified 3.02 Carat Light Greenish Yellow SI1 Clarity Diamond
Located in บางรัก, TH
certification provides an accurate, unbiased assessment of a diamond’s key attributes, including its carat
Category

2010s Asian Loose Gemstones

Materials

Diamond

GIA Certified 0.57 Carat Fancy Light Brownish Yellow SI2 Clarity Diamond
Located in บางรัก, TH
industry. The GIA certification provides a detailed and objective analysis of the diamond's key attributes
Category

2010s Asian Loose Gemstones

Materials

Diamond

GIA Certified 0.81 Carat Very Light Yellow Green SI2 Clarity Diamond
Located in บางรัก, TH
certification ensures that the diamond’s key characteristics, including carat weight, color, clarity, and cut
Category

2010s Asian Loose Gemstones

Materials

Diamond

GIA Certified Fancy Deep Yellowish Orange SI2 Clarity Diamond
Located in บางรัก, TH
. GIA certification provides an unbiased, accurate assessment of a diamond’s key characteristics
Category

2010s Asian Loose Gemstones

Materials

Diamond

GIA Certified 0.30 Carat Faint Pink I2 Clarity Diamond
Located in บางรัก, TH
Measurements: 4.27 x 4.28 x 2.62 mm Color Grade: Faint Pink FEATURES OF THE DIAMOND: This Faint Pink diamond
Category

2010s Asian Loose Gemstones

Materials

Diamond

GIA Certified 0.28 Carat Light Pink I2 Clarity Diamond
Located in บางรัก, TH
provides an accurate, unbiased assessment of the diamond’s key characteristics cut, color, clarity, and
Category

2010s Asian Loose Gemstones

Materials

Diamond

GIA Certified 0.23 Carat Fancy Deep Orangy Pink SI2 Clarity Diamond
Located in บางรัก, TH
certification ensures that the diamond's key qualities cut, color, clarity, and carat weight (often referred to
Category

2010s Asian Loose Gemstones

Materials

Diamond

Precious Key Pendant 18 kt solid Whitegold with Brilliants total 1 ct TW IF-VVS
Located in Viena, Viena
normally we have key pendants in this size only in silver in the collection, so we are all the
Category

2010s Italian Modern Pendant Necklaces

Materials

Diamond, 18k Gold, White Gold

GIA Certified 1.41 Carat Fancy Brown Pink I2 Clarity Diamond
Located in บางรัก, TH
a comprehensive and unbiased assessment of a diamond's key characteristics, known as the 4 Cs: cut
Category

2010s Asian Loose Gemstones

Materials

Diamond

GIA Certified 0.47 Carat Fancy Pink Brown SI1 Clarity Diamond
Located in บางรัก, TH
an unbiased, professional assessment of the diamond’s key attributes, including its cut, color
Category

2010s Asian Loose Gemstones

Materials

Diamond

AJD 19 Inch Multi Color Beaded Sapphire Necklace Great Gift!
By Aria Jewelry Design
Located in Raleigh, NC
to diamonds. Key Features: 19-inch Sapphire necklace with graduated gemstones Multi-color sapphires
Category

21st Century and Contemporary Indian Artisan Beaded Necklaces

Materials

Sapphire

0.58 Carat Princess Cut Diamond with Black Diamond Pave Engagement Ring Size 6.5
By H H Jewels
Located in Miami, FL
diamonds, like keys of piano playing a melody that guides you straight to her heart, come together in this
Category

2010s Engagement Rings

Materials

Diamond, Black Diamond, 14k Gold

Diamond Cascade Necklace in 18K White Gold
Located in Hong Kong, HK
diamond jewelry. Key Details Type: Diamond Necklace Metal: 18K White Gold Gold Weight: 38.6 grams
Category

21st Century and Contemporary Thai Drop Necklaces

Materials

Diamond, White Gold

2.370 Diamond and 15g Gold Golded Leaf Ear Climber
Located in Hong Kong, HK
earrings. Key Details: • Total Diamond Weight: 2.730 carats • Diamond Clarity: VVS White Round Diamonds
Category

21st Century and Contemporary Asian Lever-Back Earrings

Materials

Diamond, Gold

1970s Bulgari Diamond and Coral ring
By Bulgari
Located in Malmö, Skåne län
bold cabochons or paired with lapis lazuli, turquoise, and diamonds, coral became a key element of the
Category

Vintage 1970s Italian Retro Cocktail Rings

Materials

Coral, Diamond, Gold, 18k Gold, Yellow Gold

Radiant Oval Halo Diamond Necklace in 18K White Gold
Located in Hong Kong, HK
enduring love. Key Details Type: Diamond Necklace Metal: 18K White Gold Gold Weight: 6.80 grams Center
Category

21st Century and Contemporary Thai Drop Necklaces

Materials

Diamond, White Gold

2.62 Carats Triple Octagon Diamond Ring
Located in Hong Kong, HK
a true investment in timeless, wearable art. ⸻ Key Details: • Diamond Weight: 2.620 carats total
Category

21st Century and Contemporary Asian Modern Solitaire Rings

Materials

Diamond, 18k Gold, White Gold

GIA Certified 0.46 Carat Fancy Light Purplish Pink Diamond
Located in บางรัก, TH
diamond. The GIA report includes key details such as the diamond’s proportions, any inclusions, and its
Category

2010s Asian Loose Gemstones

Materials

Diamond, Pink Diamond

Tiffany Co. Platinum and 18K Rose Gold Pink and White Diamond Pendant
By Tiffany Co.
Located in Chicago, IL
Tiffany & Co. Platinum and 18K Rose Gold Pink and White Diamond Flower Key Pendant Necklace An
Category

2010s American Contemporary Pendant Necklaces

Materials

Diamond, White Diamond, Pink Diamond, Platinum, 18k Gold, Rose Gold

16.50 Carat Serpent Diamond Bracelet in 18K White Gold
By EstatebyJR
Located in New York, NY
wearability, this bracelet is a statement piece for any occasion. Key Features: Impressive Diamond Weight
Category

21st Century and Contemporary North American Modern Link Bracelets

Materials

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

"Rainbow" Gemstones Diamonds Ring
Located in רמת גן, IL
sapphires & diamonds at its heart. Key Features: Material: Composed of top-tier 14K gold, this jewelry
Category

2010s Modern Cocktail Rings

Materials

Emerald, Sapphire, Blue Sapphire, Blue Topaz, Purple Sapphire, Diamond, ...

9 Carat Total Weight White Gold Diamond Bracelet
By Antinori Fine Jewels
Located in Chicago, IL
Exquisite 9.00 carat total weight 18K White Gold Diamond Bracelet. This bracelet is not just a
Category

2010s Italian Modern Chain Bracelets

Materials

Diamond, White Diamond, White Gold, 18k Gold

GIA Certified 4.58 Ct. Fancy Light Yellow Diamond Engagement Platinum Ring
Located in Chicago, IL
choice for collectors and connoisseurs who appreciate colored diamonds of distinction. ✨ Key Details
Category

2010s American Contemporary Engagement Rings

Materials

Diamond, Yellow Diamond, Platinum

8.78CT Tennis bracelet of pear shaped Natural fancy light yellow diamonds in 18k
Located in Hong Kong, HK
brilliance. Key Features: Diamond Count: 28 perfectly matched, natural diamonds. Total Diamond Weight: An
Category

2010s Hong Kong Contemporary Tennis Bracelets

Materials

Diamond, Yellow Diamond, 18k Gold, Yellow 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.