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3.94 Carat Emerald Cushion Cut Diamond Ring in 18K White Gold
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s American Contemporary Fashion Rings

Materials

Diamond, Emerald, Tanzanite, 14k Gold, White Gold, Platinum

Emilio Jewelry GIA Certified 14.00 Carat D Flawless Type 2 A Diamond Ring
By Emilio!
Located in New York, NY
magnificent dream investment emerald cut diamond set in the center. The shape and proportions are very unique
Category

21st Century and Contemporary Three-Stone Rings

Materials

Diamond

15.46 Carat Total Oval Tanzanite Diamond Stud Earring in 18K White Gold
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s American Contemporary Stud Earrings

Materials

Diamond, Tanzanite, White Gold, 18k Gold

0.75 Carat Total Bezel Set White and Natural Pink Diamond Two-Tone Necklace
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

Early 2000s American Contemporary More Necklaces

Materials

Pink Diamond, Platinum

2.53 Carat Fancy Diamond And White Tahiti Black Pearl Earring In 18k Platinum
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s Clip-on Earrings

Materials

Diamond, Amethyst, 18k Gold, White Gold

20 Carat Australian Coober Pedy Opal Diamond 18k Yellow Gold Pendant Necklace
By Gems and Jewels UK
Located in Birmingham, GB
Fine Natural Australian Coober Pedy Opal & Diamond 18k Yellow Gold Pendant Necklace. Large 20
Category

21st Century and Contemporary Pendant Necklaces

Materials

Diamond, White Diamond, Opal, Black Opal, Fire Opal, Gold, 18k Gold, Yel...

Stunning 9.45ct Bluish Purple Oval Tanzanite Diamond Ring in 18k White Gold
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s American Contemporary Fashion Rings

Materials

Diamond, Tanzanite, White Gold, 18k Gold

Stunning 7.73 Carat Blue Oval Tanzanite Diamond Ring in 18k White Gold
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s American Contemporary Fashion Rings

Materials

Diamond, Tanzanite, White Gold, 18k Gold

1.85 Carat Square Emerald Diamond Cocktail Ring in 14 K White Gold
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s American Contemporary Cocktail Rings

Materials

Diamond, Emerald, 14k Gold, White Gold

Natural Diamond 0.37 carats 18KT White Gold Cluster Engagement Ring
Located in Antwerpen, BE
to last a lifetime, making it a beautiful and meaningful investment. Overall, this natural diamond
Category

2010s Belgian Modern Engagement Rings

Materials

Diamond, 18k Gold, White Gold

5.04ct Green Sapphire and 2.13ctw Diamond Ring in 14K White Gold
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s American Contemporary Fashion Rings

Materials

Diamond, Tanzanite, Green Sapphire, 14k Gold, White Gold, Platinum

2.89 Carat Tanzanite Pear and Diamond Ring in 18K White Gold
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s American Contemporary Fashion Rings

Materials

Diamond, Sapphire, Blue Sapphire, Tanzanite, 14k Gold, White Gold

0.69 Carat Oval Emerald Diamond Cocktail Ring in 18K White Gold
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

Antique 15th Century and Earlier American Contemporary Cocktail Rings

Materials

Diamond, Emerald, 18k Gold, White Gold

Elegant 4.43ct Certified Green Oval Emerald Diamond Ring in 14k White Gold
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s American Contemporary Fashion Rings

Materials

Diamond, Emerald, White Gold, 14k Gold

Exquisite 6.51ct Cert Purplish Pink Cushion Sapphire Diamond Ring in 18k WG
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s American Contemporary Fashion Rings

Materials

Diamond, Sapphire, White Gold, 18k Gold

2.64 Carat Pear Shaped Tanzanite Diamond Cocktail Ring in 14K Yellow Gold
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s American Contemporary Cocktail Rings

Materials

Diamond, Tanzanite, 14k Gold, Yellow Gold

2.52 Carat Emerald Shape Green Emerald Diamond Rings In 18k White Gold
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s American Contemporary Fashion Rings

Materials

Diamond, Emerald, 18k Gold, White Gold

Striking 7.69 Carat Blue Oval Tanzanite Diamond Ring in 14k Yellow Gold
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s American Contemporary Fashion Rings

Materials

Diamond, Tanzanite, 14k Gold, Yellow Gold

3.47 Carat Cushion Shape Green Emerald Diamond Ring In 14k White Gold
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s American Contemporary Fashion Rings

Materials

Diamond, Emerald, 14k Gold, White Gold

5.96 Carat Cushion Shape Green Emerald Diamond Ring In 18k White Gold
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s American Contemporary Fashion Rings

Materials

Diamond, Emerald, White Gold, 18k Gold

Vibrant 0.81 Carat Red Square Emerald Diamond Ring in 14k Yellow Gold
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s American Contemporary Fashion Rings

Materials

Diamond, Emerald, 14k Gold, Yellow Gold

Stunning 0.84 Carat Blue Square Emerald Diamond Ring in 14k Yellow Gold
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s American Contemporary Fashion Rings

Materials

Diamond, Emerald, 14k Gold, Yellow Gold

7.85 Carat total Diamond In Out J Hoops Earrings in 18K White Gold
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s American Contemporary Hoop Earrings

Materials

Diamond, 18k Gold, White Gold

4.56 Carat Oval Green Emerald Diamond Ring 14K Rose Gold Elegant Luxurious
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s American Contemporary Fashion Rings

Materials

Diamond, Emerald, 14k Gold, Rose Gold

4.46 Carat Green Emerald Oval Shape Diamond Ring in 14k White Gold
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s American Contemporary Fashion Rings

Materials

Diamond, Emerald, 14k Gold, White Gold

5.51 Carat Spinel Oval Cut Diamond Ring in 18K White Gold
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s American Contemporary Fashion Rings

Materials

Diamond, Emerald, Blue Sapphire, Spinel, 18k Gold, White Gold, Platinum

2.16 Carat Cushion Cut Emerald and Diamond Ring in 14K White Gold
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s American Contemporary Cocktail Rings

Materials

Diamond, Blue Sapphire, Emerald, White Gold, Platinum

7.17 Carat Spinel Emerald Cut Diamond Ring In 18K White Gold
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s American Contemporary Fashion Rings

Materials

Diamond, Blue Sapphire, Emerald, Spinel, 18k Gold, White Gold, Platinum

Elegant 0.41 Carat F-G, SI Round Diamond Earrings in 14k White Gold
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s American Contemporary Hoop Earrings

Materials

Diamond, 14k Gold, White Gold

Elegant 0.37 Carat F-G, SI Round Diamond Necklace in 14k Yellow Gold
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s American Contemporary Chain Necklaces

Materials

Diamond, 14k Gold, Yellow Gold

4.06 Carat Round Diamond 4-Prong Bracelet in 14K White Gold Timeless Brilliance
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s American Contemporary Chain Bracelets

Materials

Diamond, 14k Gold, White Gold

Elegant 0.04 Carat F-G, SI Round Diamond Necklace in 14k Yellow Gold
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s American Contemporary Chain Necklaces

Materials

Diamond, 14k Gold, Yellow Gold

Elegant 0.04 Carat F-G, SI Round Diamond Necklace in 14k Yellow Gold
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s American Contemporary Chain Necklaces

Materials

Diamond, 14k Gold, Yellow Gold

4.91 Carat Cushion Cut Red Spinel Diamond Ring in 18k White Gold
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s American Contemporary Fashion Rings

Materials

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

10.41ct Green Emerald and 1.60ctw Diamond Ring in 18K White Gold Yellow Gold
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s American Contemporary Fashion Rings

Materials

Diamond, Yellow Diamond, Emerald, Ruby, Sapphire, Blue Sapphire, Tanzani...

4.53ctw Blue Sapphire Cushion and 1.85ctw Diamond Ring in 18k White Gold
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s American Contemporary Fashion Rings

Materials

Diamond, Emerald, Blue Sapphire, 14k Gold, White Gold

GiA Certified 8.55 Carat Total Emerald Cut Emerald Diamond Earrings In 18K
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s American Contemporary Dangle Earrings

Materials

White Diamond, Emerald, 18k Gold, Yellow Gold

Sparkling 0.11 Carat F-G, SI Round Diamond Ring in 14K White Gold
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s American Contemporary Fashion Rings

Materials

Diamond, 14k Gold, White Gold

14.87 Carat Oval Shape Blue Sapphire Diamond Ring In 14k White Gold
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s American Contemporary Fashion Rings

Materials

Diamond, Blue Sapphire, 14k Gold, White Gold

Graceful 0.43 Carat F-G, SI Pear Diamond Ring in 14k White Gold
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s American Contemporary Fashion Rings

Materials

Diamond, 14k Gold, White Gold

Elegant 0.09 Carat F-G, SI Diamond Round Ring in 14k Yellow Gold
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s American Contemporary Fashion Rings

Materials

Diamond, 14k Gold, Yellow Gold

3.04ctw Ruby Oval Cut and 1.22ctw Diamond Ring in 18K White Gold
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s American Contemporary Fashion Rings

Materials

Diamond, Emerald, Blue Sapphire, Ruby, 14k Gold, White Gold

Delicate 0.08 Carat G-H, SI Round Diamond Ring in 14k Yellow Gold
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s American Contemporary Fashion Rings

Materials

Diamond, 14k Gold, Yellow Gold

11.55 Carat Total Diamond 3 Prong Tennis Necklace in 18 Karat White Gold
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s American Contemporary More Necklaces

Materials

White Diamond, 18k Gold, White Gold

21.05 Carat Total Weight 3 Rows of Fancy Shaped Diamond Bracelet In White Gold
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s American Contemporary Modern Bracelets

Materials

White Diamond, 18k Gold

0.98 Carat Pear Shaped Emerald Diamond Pendant in 18k Two Tone Gold
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s American Contemporary Pendant Necklaces

Materials

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

1.48 Carat Total Ceylon Sapphire and 2.25 Carat Total Cushion Diamond Earrings
By Heritage Gem Studio
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s American Contemporary Dangle Earrings

Materials

White Diamond, Blue Sapphire, Sapphire, 14k Gold, White Gold

PGS Certified Pear Shape Emeralds and GIA Certified Rose Cut Diamond Earrings
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s American Contemporary Dangle Earrings

Materials

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

9.22 Carat Weight Oval Bluish Violet Tanzanite Round Diamond Ring In 14K WG
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s American Contemporary Fashion Rings

Materials

Diamond, Tanzanite, 14k Gold, White Gold

Vintage 1990’s 14k Yellow Gold Bangle with Diamond Accents 1.25ct
Located in Boston, MA
a luxurious Weight of 60.17 grams. A true investment piece, this 1990s diamond bangle seamlessly
Category

1990s American Contemporary Bangles

Materials

Diamond, Yellow Gold, 14k Gold

23 Carat Total Pear Shaped Tanzanite Diamond Dangle Earrings in 18K White Gold
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s American Contemporary Dangle Earrings

Materials

Diamond, Tanzanite, 18k Gold, White Gold

Elegant 4.10 Carat Certified Green Oval Emerald Diamond Ring in 14k Rose Gold
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s American Contemporary Fashion Rings

Materials

Diamond, Emerald, 14k Gold, Rose Gold

2.44 Carat Weight Green Emerald Round Diamond Fashion Ring in 18k White Gold
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s American Contemporary Fashion Rings

Materials

Diamond, Emerald, 18k Gold, White Gold

8.97 Carat Weight Green Emerald Round Diamond Fashion Ring in 18k White Gold
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s American Contemporary Fashion Rings

Materials

Diamond, Emerald, 18k Gold, White Gold

2.28 Carat Weight Green Emerald Baguette Diamond Fashion Ring in 18k White Gol
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s American Contemporary Fashion Rings

Materials

Diamond, Emerald, 18k Gold, White Gold

2.02 Carat Weight Oval Shape Ruby Baguette Diamond Fashion Ring in 18k WG
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s American Contemporary Fashion Rings

Materials

Diamond, Ruby, 18k Gold, White Gold

5 Carat Oval Blue Tanzanite Diamond Fashion Ring 14K White Gold Bold Elegant
Located in Chicago, IL
This piece comes directly from the vault of Atlantic Diamond Company—a family-run fine jewelry
Category

2010s American Contemporary Fashion Rings

Materials

Diamond, Tanzanite, 14k Gold, White Gold

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Investment Diamonds For Sale on 1stDibs

Find an expansive variety of investment diamonds available on 1stDibs. All of the items for sale were constructed with extraordinary care, often using Gold, Platinum and 14k Gold. The designs in our inventory of investment diamonds bearing Modern hallmarks are very popular. Many examples in our inventory of these items are appealing no matter their origins, but Antinori Fine Jewels and Natkina produced popular versions that are worth a look. A selection of emerald cut, oval cut and pear cut can be found today on these pages. When shopping our range of investment diamonds, you’ll find that there are less available pieces for men today than there are for women.

How Much are Investment Diamonds?

Prices for investment diamonds can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $3,275 and can go as high as $1,205,400, while investment diamonds, on average, fetch $378,080.

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.