Skip to main content

Italy Gia

to
376
480
432
205
243
119
710
432
137
89
75
1
61
738
2
5
2
2
6
12
8
546
250
4
175
135
129
92
44
to
515
77
30
16
11
515
167
13
4
3
1
1
799
1
587
166
Sort By
GIA Certified 2 Carat E-F Color VS Round Cut Diamond Contemporary Studs Earrings
By Antinori Fine Jewels
Located in Chicago, IL
Italian craftsmanship and the allure of 2 carats of sparkling diamonds with our GIA Certified 2 Carat E-F
Category

2010s Italian Contemporary Stud Earrings

Materials

Diamond, 18k Gold, White Gold

GIA Certified 2 Carat E-F Color VS Round Cut Diamond Contemporary Studs Earrings
By Antinori Fine Jewels
Located in Chicago, IL
Italian craftsmanship and the allure of 2 carats of sparkling diamonds with our GIA Certified 2 Carat E-F
Category

2010s Italian Contemporary Stud Earrings

Materials

Diamond, 18k Gold, White Gold

GIA Certified 15 Carat Emerald Cut Eternity Band Ring FLAWLESS TO VS1 DEF COLOR
By Antinori Fine Jewels
Located in Chicago, IL
-cut diamonds. Each of the 15 stones, weighing 1 carat, is GIA certified, boasting the highest
Category

2010s Italian Contemporary Band Rings

Materials

Diamond, Emerald, Platinum

GIA Certified 2 Carat E-F Color VS Round Cut Diamond Halo Studs Earrings
By Antinori Fine Jewels
Located in Chicago, IL
. Indulge in Italian craftsmanship and the allure of 2 carats of sparkling diamonds with our GIA Certified 2
Category

2010s Italian Contemporary Stud Earrings

Materials

Diamond, 18k Gold, White Gold

0.75 Cts F/VS1 GIA Certified Round Brilliant Diamond Men s Wedding Ring 18K Gold
Located in New Delhi, Delhi
solitaire style. The diamond is GIA certified with a grade of F/VS1, ensuring its natural beauty and
Category

21st Century and Contemporary Italian Contemporary Band Rings

Materials

Diamond, 18k Gold, White Gold

GIA 0.90 Cts G/VS2 Emerald Shape Diamond Solitaire Engagement Ring In 18K Gold
Located in New Delhi, Delhi
Create an everlasting bond with this exquisite ring featuring a GIA Certified 0.90 Carat G/VS2
Category

21st Century and Contemporary Italian Contemporary Solitaire Rings

Materials

Diamond, Emerald, 18k Gold

GIA Certified 1 Cts F/VS1 Round Brilliant Diamonds Stud Earrings 18K Yellow Gold
Located in New Delhi, Delhi
Unlock the allure of these exclusive GIA certified diamond solitaire earrings, boasting a total of
Category

21st Century and Contemporary Italian Contemporary Stud Earrings

Materials

Diamond, 18k Gold, Yellow Gold

GIA Certified 2 Carat G/VVS1 Radiant Cut Natural Diamond Solitaire Ring 18K Gold
Located in New Delhi, Delhi
This ring embodies glamour in its most blissful form. Treat yourself to this astounding GIA
Category

21st Century and Contemporary Italian Contemporary Solitaire Rings

Materials

Diamond, 18k Gold, Rose Gold

GIA Certified 12 Carat Emerald Cut Fancy Yellow Diamond Trillion side Ring
By Antinori Fine Jewels
Located in Chicago, IL
12 ct emerald Cut Diamond Halo Engagement Ring in 18K White Gold and Platinum
Category

2010s Italian Modern Engagement Rings

Materials

Diamond, White Diamond, Yellow Diamond, Emerald

GIA 3.51 ct Total Weight Platinum Rectangular Radiant Cut Diamond Engagement Rin
By Antinori Fine Jewels
Located in Chicago, IL
3.51 ct Total Weight Platinum Rectangular Radiant Cut Diamond Engagement Ring. The ring weighs 4.2 grams, size 5.75, the center stone is a Natural Rectangular Radiant Cut Diamond...
Category

2010s Italian Modern Engagement Rings

Materials

Diamond, White Diamond, Emerald, Platinum

GIA Certified 1 Carats Emerald Shape F/VS1 Diamonds Stud Earrings 18K White Gold
Located in New Delhi, Delhi
accomanpied with Hallmark Stamps and Certificates. 3.) We have all sizes, shapes, color, clarity GIA & IGI
Category

21st Century and Contemporary Italian Contemporary Stud Earrings

Materials

Diamond, 18k Gold, White Gold

White Gold Diamond Double Halo Pendant Necklace 16" 18k Pear 2.75ctw GIA
Located in Greensboro, NC
/16" (14mm) Length: 16" Weight: 6.1 Grams Stamps: 750, Italy, hallmark Includes GIA Certification
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, 18k Gold, White Gold, Yellow Gold

GIA Certified 4 Carat Asscher Cut Diamond Engagement 18K White Gold Ring
By Antinori Fine Jewels
Located in Chicago, IL
Elevate your style with this exquisite 4 carat Asscher cut diamond ring, a radiant embodiment of timeless sophistication and refined luxury. Main Diamond: At the center of this stun...
Category

2010s Italian Modern Solitaire Rings

Materials

Diamond, White Diamond, 18k Gold

GIA Certified Oval Brilliant Cut Diamond Halo 14k White Gold Engagement Ring
By Antinori Fine Jewels
Located in Chicago, IL
Oval Brilliant Cut Diamond Halo 14k White Gold Engagement Ring.
Category

2010s Italian Modern Engagement Rings

Materials

Diamond, White Diamond, 14k Gold, White Gold

GIA Certified NO HEAT BURMA Pink Sapphire Marquise Round Diamond Cocktail Ring
By Antinori Fine Jewels
Located in Chicago, IL
BURMESE PINK SAPPHIRE RING WITH 12 MARQUISE DIAMONDS and 1 carat of round brilliant cut diamonds pave set in solid platinum More beautiful than a classic ring, this ring features 12...
Category

2010s Italian Modern Engagement Rings

Materials

Diamond, White Diamond, Sapphire, Pink Sapphire, Platinum

GIA Certified 6 Carat Light Yellow Diamond Studs Set in 18k Yellow Gold
By Antinori Fine Jewels
Located in Chicago, IL
Elevate your elegance with this exceptional pair of GIA Certified Fancy Light Yellow cushion-cut
Category

2010s Italian Clip-on Earrings

Materials

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

9.20 Cts GIA Certified G/VS2 Radiant Cut Diamonds Solitaire Ring 18K White Gold
Located in New Delhi, Delhi
, shapes, color, clarity GIA & IGI Ceritifed Diamonds Available. 4.) We do make Custom Designs. Please
Category

21st Century and Contemporary Italian Contemporary Solitaire Rings

Materials

Diamond, 18k Gold, White Gold

GIA Certified 1.50 Carat Triple Excellent Round Cut Diamond 18k White Gold Ring
By Antinori Fine Jewels
Located in Chicago, IL
GIA Certified 8 Carat pear cut diamond ring Main diamond Weight: 1.5 carat Color G Clarity VS2
Category

2010s Italian Modern Engagement Rings

Materials

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

Yellow Gold Diamond Halo Pendant Necklace - 14k Round 1.38ctw GIA Adjustable
Located in Greensboro, NC
Grams Stamps: 14kt, 585, maker's mark, Italy The solitaire has a GIA eReport but it is not accompanied
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, 14k Gold, Yellow Gold

GIA Certified 5.50 Cts G/SI1 Round Natural Diamonds Wedding Ring 18K White Gold
Located in New Delhi, Delhi
with Hallmark Stamps and Certificates. 3.) We have all sizes, shapes, color, clarity GIA & IGI
Category

21st Century and Contemporary Italian Contemporary Solitaire Rings

Materials

Diamond, 18k Gold, White Gold

GIA Certified 1.00 Carat E-F Color VS Clarity Solitary Round Diamond Gold 6Griff
By Antinori Fine Jewels
Located in Chicago, IL
Marvel at the epitome of sophistication with the GIA Certified 1.00 Carat E-F Color VS Clarity
Category

2010s Italian Contemporary Solitaire Rings

Materials

Diamond, Gold, 18k Gold, White Gold

GIA Certified 1.00 Carat E-F Color VS Clarity Solitary Round Diamond Gold 4Griff
By Antinori Fine Jewels
Located in Chicago, IL
Behold the epitome of sophistication with the GIA Certified 1.00 Carat E-F Color VS Clarity
Category

2010s Italian Contemporary Solitaire Rings

Materials

Diamond, Gold, 18k Gold, White Gold

GIA Certified 2 Carat E-F Color VS Round Cut Diamond 18K Gold Studs Earrings
By Antinori Fine Jewels
Located in Chicago, IL
Introducing our exquisite GIA Certified 2 Carat E-F Color VS Round Cut Diamond 18K Gold Stud
Category

2010s Italian Contemporary Stud Earrings

Materials

Diamond, 18k Gold, White Gold

GIA Certified 1 Cts F/VS1 Two-Stone Pear Cut Diamonds Engagement Ring 18K Gold
Located in New Delhi, Delhi
diamonds are GIA certified with a F color grade and a VS1 clarity grade. The ring is available in size 6
Category

21st Century and Contemporary Italian Contemporary Solitaire Rings

Materials

Diamond, 18k Gold, Yellow Gold

Berca GIA Certified 2.23Kt No Heat Cushion Cut Siam Red Ruby 1960 Ballerina Ring
By Berca Atelier
Located in Valenza, IT
Outstanding GIA Certified 2.23 Carat Cushion Cut NO HEAT Siam Red Ruby, 2.46 Carat Marquise and
Category

20th Century Italian Modern Solitaire Rings

Materials

White Diamond, Ruby, 18k Gold

18k White Gold Cocktail Ring 0.60 ct Fancy Yellow Green Diamond GIA Scarselli
By SCARSELLI
Located in New York, NY
18k white gold cocktail ring featuring a GIA-certified 0.60 carat natural fancy yellowish green
Category

2010s Italian Contemporary Cocktail Rings

Materials

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

GIA Certified 2.14 Carats J VS2 Round Diamond Gold Studs
By Diamond Stars Jewelry, Inc.
Located in New York, NY
Very Unusual Studs The studs are 18K White Gold from Italy. The stones are GIA Certified and set in
Category

21st Century and Contemporary American Contemporary Stud Earrings

Materials

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

GIA Certified 1.80 Carat Heart Cut Shape Diamond Studs E/F Color VS2 Clarity
By Antinori Fine Jewels
Located in Chicago, IL
GIA Certified 1.80 Carat Heart Cut Shape Diamond Studs E/F Color VS2 Clarity
Category

2010s Italian Modern Clip-on Earrings

Materials

Diamond, White Diamond, 18k Gold

GIA GRS IGI Certified 3.60 Carat Kashmir No Heat Blue Sapphire Diamond Ring
By Antinori Fine Jewels
Located in Chicago, IL
Step into the world of unparalleled luxury with our exquisite 3.60-carat Blue Sapphire, a rare gem from the coveted Kashmir region. This extraordinary gemstone is a celebration of na...
Category

2010s Italian Modern Engagement Rings

Materials

Diamond, White Diamond, Blue Sapphire, Platinum

GIA Certified 1.16 Carat E-F Color VS Clarity Halo Round Diamond Chain Pendant
By Antinori Fine Jewels
Located in Chicago, IL
This enchanting pendant features a GIA certified 1.00-carat round diamond as its central focal
Category

2010s Italian Contemporary Chain Necklaces

Materials

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

GIA Certified 4 Carat Emerald Cut Band Ring Set in 18 Carats Yellow Gold
By Antinori Fine Jewels
Located in Chicago, IL
Elevate your jewelry collection with this extraordinary GIA Certified 4 Carat Emerald Cut Diamond
Category

2010s Italian Engagement Rings

Materials

White Diamond, Emerald, 18k Gold, Yellow Gold

GIA Certified 4 Carat Fancy Yellow Cushion Cut Diamond Studs Set in 18 Carats
By Antinori Fine Jewels
Located in Chicago, IL
GIA Certified 4 Carat Fancy Yellow Cushion Cut Diamond Studs set in 18 Carats
Category

2010s Italian Modern Stud Earrings

Materials

Diamond, Yellow Diamond, 18k Gold, Yellow Gold

GIA Certified 1.00 Carat E-F Color VS Clarity Round Diamond Gold Chain Pendant
By Antinori Fine Jewels
Located in Chicago, IL
Immerse yourself in the timeless allure of this GIA certified 1.00-carat round diamond gold chain
Category

2010s Italian Contemporary Chain Necklaces

Materials

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

GIA Certified 1.00 Ct E-F Color VS Clarity Solitary Round Diamond Classic Triump
By Antinori Fine Jewels
Located in Chicago, IL
Introducing a timeless triumph of elegance, the GIA Certified 1.00 Ct E-F Color VS Clarity
Category

2010s Italian Contemporary Solitaire Rings

Materials

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

GIA Certified 1.00 Ct E-F Color VS Clarity Solitary Round Diamond Bezel Triump
By Antinori Fine Jewels
Located in Chicago, IL
Experience the epitome of elegance with the GIA Certified 1.00 Ct E-F Color VS Clarity Solitaire
Category

2010s Italian Contemporary Solitaire Rings

Materials

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

GIA GRS Certified 6.61 Carat Vivid Red Oval Ruby Diamond Ring BURMA NO HEAT
By Antinori Fine Jewels
Located in Chicago, IL
Centering on a vivid red ruby heart shaped ruby framed by two rows of diamonds this stone is extremely high quality
Category

2010s Italian Contemporary Cocktail Rings

Materials

Diamond, White Diamond, Ruby

GIA Certified 1.00 Carat E-F Color VS Clarity Round Diamond Gold Chain Pendant
By Antinori Fine Jewels
Located in Chicago, IL
Immerse yourself in the timeless allure of this GIA certified 1.00-carat round diamond gold chain
Category

2010s Italian Contemporary Chain Necklaces

Materials

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

GIA Certified 1.00 Ct E-F Color VS Clarity Solitary Round Diamond Bezel Classic
By Antinori Fine Jewels
Located in Chicago, IL
Introducing the timeless allure of the GIA Certified 1.00 Ct E-F Color VS Clarity Solitaire Round
Category

2010s Italian Contemporary Solitaire Rings

Materials

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

GIA Certified 1.00 Ct E-F Color VS Clarity Solitary Round Diamond Halo Bezel
By Antinori Fine Jewels
Located in Chicago, IL
Elevate your style with the enchanting allure of the GIA Certified 1.00 Ct E-F Color VS Clarity
Category

2010s Italian Contemporary Solitaire Rings

Materials

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

GIA Certified 1.16 Carat E-F Color VS Clarity Round Diamond Gold Halo Ring
By Antinori Fine Jewels
Located in Chicago, IL
Introducing an exquisite piece of fine jewelry—a GIA Certified Round Diamond Gold Halo Ring with
Category

2010s Italian Contemporary Solitaire Rings

Materials

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

GIA Certified 0.82 Carat E-F Color VS Clarity Double Halo Round Diamond Pendant
By Antinori Fine Jewels
Located in Chicago, IL
This captivating pendant showcases a GIA certified 0.50-carat round diamond as its central focal
Category

2010s Italian Contemporary Chain Necklaces

Materials

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

GIA Certified 1.00 Carat E-F Color VS Clarity Round Diamond Gold Chain Pendant
By Antinori Fine Jewels
Located in Chicago, IL
This exquisite pendant features a meticulously selected and GIA certified 1.00 carat round diamond
Category

2010s Italian Contemporary Chain Necklaces

Materials

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

GIA Certified 1/2 Cts F/VS East West Oval Shape Diamond Engagement Ring 18K Gold
Located in New Delhi, Delhi
yellow gold solitaire setting. GIA certified with an F/VS grade, the diamond offers exceptional quality
Category

21st Century and Contemporary Italian Contemporary Solitaire Rings

Materials

Diamond, 18k Gold, Yellow Gold

GIA Certified 1 Carat E-F Color VS Round Cut Diamond Double Halo Studs Earrings
By Antinori Fine Jewels
Located in Chicago, IL
preferences. Indulge in Italian craftsmanship and the allure of 1 carats of sparkling diamonds with our GIA
Category

2010s Italian Contemporary Stud Earrings

Materials

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

GIA Certified 2 Cts Emerald Heart Cut F/VS Diamonds Toi Et Moi Earrings 18K Gold
Located in New Delhi, Delhi
Grade : VS1 Certification - GIA Certified Gold Color : White Gold Gold Purity : 18K Closure : Screw
Category

21st Century and Contemporary Italian Contemporary Stud Earrings

Materials

Diamond, 18k Gold, White Gold

GIA Certified 4 Carat F/VS1 Pear Emerald Shape Diamonds Toi Et Moi Ring 18K Gold
Located in New Delhi, Delhi
This ring is truly exceptional: GIA-certified 4-carat F/VS1 pear and emerald-shaped diamonds set in
Category

21st Century and Contemporary Italian Contemporary Solitaire Rings

Materials

Diamond, 18k Gold, Rose Gold

1 Cts F/VS1 Oval Emerald Shape GIA Certified Diamonds Toi Et Moi Ring 18K Gold
Located in New Delhi, Delhi
yellow gold and GIA certified for authenticity and quality, this ring offers a timeless elegance. Fully
Category

21st Century and Contemporary Italian Contemporary Solitaire Rings

Materials

Diamond, 18k Gold, Yellow Gold

GIA Certified 1.25 Cts F/VS1 Pear Marquise Cut Diamonds Toi Et Moi Ring 18K Gold
Located in New Delhi, Delhi
carat weight of 1.25. The GIA-certified diamonds boast an excellent cut, F color grade, and VS1 clarity
Category

21st Century and Contemporary Italian Contemporary Solitaire Rings

Materials

Diamond, 18k Gold, Yellow Gold

GIA Round Brilliant Cut Diamond Halo Engagement Ring Set 18 Carats White Gold
By Antinori Fine Jewels
Located in Chicago, IL
Round Brilliant Cut Diamond Halo Engagement Ring Set.
Category

2010s Italian Modern Cocktail Rings

Materials

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

GIA Certified 1.50 Cts F/VS1 Pear Shape Diamonds Toi Et Moi Ring 18K Yellow Gold
Located in New Delhi, Delhi
This 18k Yellow Gold Ring adds a brilliant touch to traditional costumes. It features GIA Certified
Category

21st Century and Contemporary Italian Contemporary Solitaire Rings

Materials

Diamond, 18k Gold, Yellow Gold

GIA Certified 1 Cts F/VS1 Heart Radiant Shaped Diamonds Toi Et Moi Ring 18K Gold
Located in New Delhi, Delhi
All good things are made of sparkling diamonds and gold. Make this exclusive GIA Certified 1 Carat
Category

21st Century and Contemporary Italian Contemporary Solitaire Rings

Materials

Diamond, 18k Gold, White Gold

GIA Certified 2.40 Ct E-F Color VS Clarity 3 Stones Round Cut Diamond Degradè
By Antinori Fine Jewels
Located in Chicago, IL
Introducing a truly extraordinary piece, the GIA Certified Three Stones Round Cut Diamond Dégradé
Category

2010s Italian Contemporary Three-Stone Rings

Materials

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

GIA Certified 3.00 Ct E-F Color VS Clarity Three Stones Round Cut Diamond Ring
By Antinori Fine Jewels
Located in Chicago, IL
Elevate your style with the timeless elegance of the GIA Certified Three Stones Round Cut Diamond
Category

2010s Italian Contemporary Three-Stone Rings

Materials

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

GIA Certified 0.82 Carat E-F Color VS Clarity Round Diamon Gold Double Halo Ring
By Antinori Fine Jewels
Located in Chicago, IL
Presenting a breathtaking piece of jewelry, the GIA Certified Round Diamond Gold Double Halo Ring—a
Category

2010s Italian Contemporary Solitaire Rings

Materials

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

1.16 Ct GIA Cert No oil Emerald Ring With Natural Diamond And Platinum Gold
By Gems WB
Located in bangkok, TH
-22.13Gram/4P 3-total weight : 16.16 Gram Platinum Gold 900 USA7# / Italy HK 14# / Euro 54# GIA
Category

2010s Solitaire Rings

Materials

Diamond, Emerald, Platinum

GIA Certified 0.90 Carats Round Diamond White Gold Asymmetrical Engagement Ring
By Beatrice Barzaghi Milano
Located in Milan, IT
, GIA certified n. 7436015752, diameter 6-6.07 x 3.87 mm. The total weight of the ring is 3,00 grams
Category

21st Century and Contemporary Modern Engagement Rings

Materials

Diamond, Gold, 18k Gold, White Gold

14k Halo Diamond Engagement Ring with 0.32 Carat GIA Certified Center Diamond
Located in Camisano Vicentino, VI
Italian craftsmanship, GIA certification, and exquisite diamond arrangement, this engagement ring is a
Category

2010s European Contemporary Engagement Rings

Materials

Diamond, 14k Gold

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

Italy Gia For Sale on 1stDibs

Find the exact italy gia you’re shopping for in the variety available on 1stDibs. Each design created in this style — which was crafted with great care and often made from Gold, 18k Gold and White Gold — can elevate any look. Find an antique version now, or shop for 3 vintage or 46 modern creation for a more contemporary example of these cherished accessories. Finding the perfect italy gia may mean sifting through those created during different time periods — you can find an early version that dates to the 20th Century and a newer variation that were made as recently as the 21st Century. As it relates to this specific piece, our collection includes designs that are universally popular, but 2 Carat and 2.5 Carat carat weights, specifically, are sought with frequency. A italy gia from Antinori Fine Jewels, Botta gioielli and Bulgari — each of whom created a beautiful version of this treasured accessory — is worth considering. An emerald cut version of this piece has appeal, but there are also oval cut and round cut versions for sale. Most of our italy gia for sale are for women, but there are 37 pieces available to browse for men.

How Much is a Italy Gia?

Prices for a italy gia can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $1,600 and can go as high as $4,350,000, while this accessory, on average, fetches $111,250.

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.