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12.23ct GIA Certified RARE Russian Emerald Diamond 18k White Gold Halo Pendant
By Gems and Jewels UK
Located in Birmingham, GB
quality. VS clarity, D-F colour and all an excellent cut. These are all expertly set and the piece is
Category

21st Century and Contemporary Pendant Necklaces

Materials

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

Emerald Gemstone Diamond Engagement Ring in 14K Solid Gold (Certified)
Located in New Delhi, DL
SGL. Ring features a smooth oval-cut emerald set with four prongs, placed at the center of a slim
Category

21st Century and Contemporary Indian Art Deco Engagement Rings

Materials

Diamond, Emerald, Gold, 14k Gold, Rose Gold, White Gold, Yellow Gold

Set in 18K Gold, 0.60 carats, Zambian Emerald Tapered Diamonds Engagement Ring
By JEWEL HUB
Located in Hong Kong, HK
& natural Diamonds. The weight of the Pear shaped Emeralds is 0.60 carats. The Emeralds are completely
Category

21st Century and Contemporary Indian Modern Engagement Rings

Materials

Diamond, Emerald, 18k Gold

Set in 18K white Gold, Aquamarines, Colombian Emeralds Diamonds Cocktail Ring
By JEWEL HUB
Located in Hong Kong, HK
Colombian Emeralds ✦ Gemstone Cut: Pear ✦ Gemstone Weight: 3.03 ct. Approx. ✦ Gemstone: Natural Diamonds
Category

21st Century and Contemporary Indian Modern Cocktail Rings

Materials

Aquamarine, Diamond, Emerald, 18k Gold, White Gold

Set in 18K Gold, 3.57 carats, natural Zambian Emeralds Diamonds Dangle Earring
By JEWEL HUB
Located in Hong Kong, HK
A very beautiful and unique, Emerald Dangle Earrings set in 18K White Gold & natural Diamonds. The
Category

21st Century and Contemporary Indian Modern Dangle Earrings

Materials

Diamond, Emerald, 18k Gold

Spectra Fine Jewelry, Certified 36.29 Carat Colombian Emerald Diamond Ring
By Spectra Fine Jewelry
Located in New York, NY
-set stones. Together they shimmer with 4.56 carats of icy white brilliance, D–E in color and VVS in
Category

21st Century and Contemporary American Contemporary Cocktail Rings

Materials

Diamond, Emerald, 18k Gold, Platinum

Set in 18K Gold, Zambian Emerald, Mother of Pearl Diamonds Cocktail Ring
By JEWEL HUB
Located in Hong Kong, HK
Yellow Gold & natural Diamonds. The weight of the pear shaped Emerald is 4.32 carats. The Emerald is
Category

21st Century and Contemporary Indian Modern Cocktail Rings

Materials

Diamond, Emerald, Pearl, 18k Gold

Set in 18K Gold, Aquamarine, Blue Sapphires, Emeralds Diamonds Cocktail Ring
By JEWEL HUB
Located in Hong Kong, HK
respectively. The Blue Sapphires & Emeralds are hand - carved in our very own workshop. The Diamonds weight is
Category

21st Century and Contemporary Indian Modern Cocktail Rings

Materials

Aquamarine, Diamond, Emerald, Blue Sapphire, 18k Gold

Set in 18K Gold, Emerald Cabochon, carved Blue Sapphire, Ruby Diamonds Earring
By JEWEL HUB
Located in Hong Kong, HK
✦ Gemstone Cut: Rose ✦ Diamond Weight: 0.33 ct. ✦ Diamond Clarity: Average VS-SI ✦ Diamond Color: G - H
Category

21st Century and Contemporary Indian Modern Dangle Earrings

Materials

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

Set in 18K Gold, 5.71 carats, natural Zambian Emerald Diamonds Dangle Earrings
By JEWEL HUB
Located in Hong Kong, HK
Emerald ✦ Gemstone Cut: Round ✦ Gemstone Weight: 0.72 ct. Approx. ✦ Gemstone: Natural Diamonds
Category

21st Century and Contemporary Indian Art Deco Dangle Earrings

Materials

Diamond, Emerald, 18k Gold

Set in 18K Gold, Ethiopian Opal, Emeralds, Tanzanites Diamonds Cocktail Ring
By JEWEL HUB
Located in Hong Kong, HK
Emerald ✦ Gemstone Cut: Oval ✦ Gemstone Weight: 2.14 ct. Approx. ✦ Gemstone: Tanzanite ✦ Gemstone Cut
Category

21st Century and Contemporary Indian Modern Cocktail Rings

Materials

Diamond, Emerald, Opal, Tanzanite, 18k Gold

Set in 18K Gold, Ethiopian Opal, Emerald, Rubellite Diamonds Cocktail Ring
By JEWEL HUB
Located in Hong Kong, HK
✦ Gemstone Cut: Round ✦ Diamond Weight: 0.84 ct. ✦ Diamond Clarity: Average VS-SI ✦ Diamond Color: H-I
Category

21st Century and Contemporary Indian Modern Cocktail Rings

Materials

Diamond, Emerald, Opal, Rubelite, 18k Gold

GIA Certified 0.40 Carat I Colour VVS1 Clarity Diamond
Located in บางรัก, TH
Measurements: 4.36 x 3.63 x 2.72 mm Color Grade: I Colour FEATURES OF THE DIAMOND: This I color diamonds are
Category

2010s Asian Loose Gemstones

Materials

Diamond

GIA Certified 2.15 Carat E Colour I1 Clarity Diamond
Located in บางรัก, TH
Measurements: 8.26 x 8.33 x 5.00 mm Color Grade: E Colour FEATURES OF THE DIAMOND: This E color diamond is
Category

2010s Asian Loose Gemstones

Materials

Diamond

Set in 18K Gold, 3.04 carats Zambian Emerald Yellow Diamonds Engagement Ring
By JEWEL HUB
Located in Hong Kong, HK
. ✦ Diamond Clarity: Average VS-SI ✦ Diamond Color: G - H (Round) & Slightly Yellow (Pear rose cuts) ✦ Metal
Category

21st Century and Contemporary Indian Modern Engagement Rings

Materials

Yellow Diamond, Emerald, 18k Gold

Set in 18K Gold, Emerald sugarloaf, Blue Sapphires Diamonds Cocktail Ring
By JEWEL HUB
Located in Hong Kong, HK
Gold & natural Diamonds. The weight of the Emerald sugarloaf is 6.53 carats. The Emerald is completely
Category

21st Century and Contemporary Indian Modern Cocktail Rings

Materials

Diamond, Emerald, Blue Sapphire, 18k Gold

IGI Certified 1.01 Carat J Colour VS1 Clarity Diamond
Located in บางรัก, TH
Measurements: 7.12 x 4.93 x 3.40 mm Color Grade: J Colour FEATURES OF THE DIAMOND: This J color diamond is
Category

2010s Asian Loose Gemstones

Materials

Diamond

Set in 18K Gold, 6.05 carats, Zambian Emerald Yellow Diamonds Stud Earrings
By JEWEL HUB
Located in Hong Kong, HK
& natural Diamonds. The weight of the Emeralds is 6.05 carats. The Emeralds are completely natural, without
Category

21st Century and Contemporary Indian Modern Stud Earrings

Materials

Yellow Diamond, Emerald, 18k Gold

Set in 18K Gold, 7.62 carats Zambian Emerald Sugarloaf Diamond Dangle Earrings
By JEWEL HUB
Located in Hong Kong, HK
& natural Diamonds. The weight of the Emerald Sugarloafs is 7.62 carats. The Emerald is completely natural
Category

21st Century and Contemporary Indian Art Deco Dangle Earrings

Materials

Diamond, Emerald, 18k Gold

Set in 18K Gold, 11.50 carats, natural Zambian Emerald Diamond Engagement Ring
By JEWEL HUB
Located in Hong Kong, HK
& natural Diamonds. The combined weight of the Emeralds is 11.50 carats. The Emeralds are completely natural
Category

21st Century and Contemporary Indian Modern Engagement Rings

Materials

Diamond, Emerald, 18k Gold

Set in 18K Gold with Green Rhodium, 8.16 carat Emeralds Diamonds Stud Earrings
By JEWEL HUB
Located in Hong Kong, HK
Rhodium & natural Diamonds. The weight of the Emeralds is 8.16 carats. The Emeralds are completely natural
Category

21st Century and Contemporary Indian Modern Stud Earrings

Materials

Diamond, Emerald, 18k Gold, Rhodium

Set in 18K Gold, 21.06 carats Ethiopian Opal, Emeralds Diamonds Cocktail Ring
By JEWEL HUB
Located in Hong Kong, HK
- orange play of colour and is of Ethiopian origin. The Emeralds weight is 5.25 carats. The Emeralds are
Category

21st Century and Contemporary Indian Modern Cocktail Rings

Materials

Diamond, Emerald, Opal, 18k Gold

Natural Colombian Emerald and Diamond Cluster Ring by Oscar Heyman Brothers
By Oscar Heyman
Located in London, GB
old cut natural Colombian emerald with no colour enhancement in an open back rubover setting with an
Category

Vintage 1970s American Cocktail Rings

Materials

Diamond, Emerald, 18k Gold

Set in 18K White Gold, 0.92 carats Zambian Emerald Diamonds Engagement Ring
By JEWEL HUB
Located in Hong Kong, HK
& natural Diamonds. The weight of the oval shaped Emerald is 0.92 carats. The Emerald is completely natural
Category

21st Century and Contemporary Indian Modern Engagement Rings

Materials

Emerald, Diamond, White Gold, 18k Gold

Set in 18K Gold, 13.39 carats carved Aquamarine, Emerald Diamond Cocktail Ring
By JEWEL HUB
Located in Hong Kong, HK
: 13.39 ct. Approx. ✦ Gemstone: natural Zambian Emeralds ✦ Gemstone Cut: hand-carved ✦ Gemstone Weight
Category

21st Century and Contemporary Indian Modern Cocktail Rings

Materials

Aquamarine, Diamond, Emerald, 18k Gold

Art Deco Style GIA D-Colored Diamond and Sapphire Target Ring in 18k Yellow Gold
Located in London, England
gold. The ring is predominantly set with a sparkly GIA certified D-coloured emerald cut diamond which
Category

2010s British Art Deco Engagement Rings

Materials

Diamond, Sapphire, 18k Gold, Yellow Gold

Set in 18K white Gold, Ethiopian Opal, Zambian Emeralds Diamonds Cocktail RIng
By JEWEL HUB
Located in Hong Kong, HK
& natural Diamonds. The weight of the Ethiopian Opal is 6.31 carats. The weight of the Emeralds is 3.10
Category

21st Century and Contemporary Indian Modern Cocktail Rings

Materials

Diamond, Emerald, Opal, White Gold, 18k Gold

Set in 18K Gold, 2.14 carats natural Zambian Emerald Diamonds Engagement Ring
By JEWEL HUB
Located in Hong Kong, HK
Diamonds. The weight of the Emerald is 2.14 carats. The Emerald is completely natural, without any
Category

21st Century and Contemporary Indian Modern Engagement Rings

Materials

Diamond, Emerald, 18k Gold

Set in 18K Gold, 6.11 carats, Zambian Emerald Yellow Diamonds Cocktail Ring
By JEWEL HUB
Located in Hong Kong, HK
Clarity: Average VS-SI ✦ Diamond Color: Fancy Yellow ✦ Gemstone: Natural Diamonds ✦ Gemstone Cut: Round
Category

21st Century and Contemporary Indian Modern Cocktail Rings

Materials

Yellow Diamond, Emerald, 18k Gold

Marchak Cabochon Emerald, Carved Ruby and Diamond Ring, French, circa 1950
By Marchak
Located in London, GB
Marchak cabochon emerald, carved ruby and diamond ring. Set centrally with a round cabochon natural
Category

Vintage 1950s French Dome Rings

Materials

Diamond, Emerald, Ruby, Yellow Gold

Set in 18K Gold, Colombian Emerald, Multi Sapphires Diamond Dome Cocktail Ring
By JEWEL HUB
Located in Hong Kong, HK
White Gold & natural Diamonds. The weight of the Emerald cabochon is 2.07 carats. The Emerald is
Category

21st Century and Contemporary Indian Modern Dome Rings

Materials

Diamond, Emerald, Sapphire, 18k Gold

Oval Emerald Halo Diamond Stud Earrings in 14k Solid Gold (Certified)
Located in New Delhi, DL
SGL. These emerald and diamond halo stud earrings feature vibrant oval-cut natural emeralds set in
Category

21st Century and Contemporary Indian Art Deco Stud Earrings

Materials

Diamond, Emerald, Gold, 14k Gold, Rose Gold, White Gold, Yellow Gold

Antique Art Deco Plat GIA European Diamond Emerald Milgrain Etched Domed Ring
Located in Montclair, NJ
Color - VS1/VS2 Clarity - 0.26ctw (approx.) (10) Natural Genuine Emeralds - Square Step Cut - Channel
Category

Vintage 1920s Art Deco Cocktail Rings

Materials

Diamond, Emerald, Platinum

Emerald Dangle Drop Gemstone Diamond Earrings in 14K Solid Gold (Certified)
Located in New Delhi, DL
Emerald Shape: Pear and emerald cut Carat: 7.39ct Color: Green ★THE METAL★ 14K Solid Gold Available in
Category

21st Century and Contemporary Indian Art Deco Dangle Earrings

Materials

Diamond, Emerald, Gold, 14k Gold, Rose Gold, White Gold, Yellow Gold

1.72 Carat Natural Emerald and Diamond Cocktail Ring in 18k White Gold
Located in Hong Kong, HK
Emerald CTW: 1.04ctw • Total Diamond CTW: 1.20ctw • Diamond Color Clarity: D-E Color VS1-2 Clarity
Category

Early 2000s Unknown Art Deco Cocktail Rings

Materials

Diamond, 18k Gold, White Gold

Set in 18K Gold, 12.60 carats, Zambian Emerald Yellow Diamonds Cocktail Ring
By JEWEL HUB
Located in Hong Kong, HK
Yellow Diamonds. The weight of the Emerald is 12.60 carats. The Emerald is completely natural, without
Category

21st Century and Contemporary Indian Art Deco Cocktail Rings

Materials

Yellow Diamond, Emerald, 18k Gold

Set in 18K Gold, 3.47 carats Emerald, Green Enamel Diamonds Engagement Ring
By JEWEL HUB
Located in Hong Kong, HK
& natural Diamonds. The weight of the Emerald is 3.47 carats. The Emerald is completely natural, without any
Category

21st Century and Contemporary Indian Modern Engagement Rings

Materials

Diamond, Emerald, 18k Gold, Enamel

Set in 18K Gold, Zambian Emerald Cabochon, Mother of Pearl Diamonds Dome Ring
By JEWEL HUB
Located in Hong Kong, HK
18K Yellow Gold & natural Diamonds. The weight of the Emerald is 3.10 carats. The Emerald cabochon is
Category

21st Century and Contemporary Indian Modern Cocktail Rings

Materials

Diamond, Emerald, Pearl, 18k Gold

Set in 18K Gold, natural Zambian Emerald, Black Onyx Diamonds Engagement Ring
By JEWEL HUB
Located in Hong Kong, HK
✦ Gemstone Cut: Round ✦ Diamond Weight: 0.49 ct. ✦ Diamond Clarity: Average VS-SI ✦ Diamond Color: G - H
Category

21st Century and Contemporary Indian Art Deco Engagement Rings

Materials

Diamond, Emerald, Onyx, 18k Gold, Yellow Gold

Set in 18K white Gold, Emeralds, Ceylon Pink Sapphire Diamonds Cocktail Ring
By JEWEL HUB
Located in Hong Kong, HK
cut is of Ceylon (Sri Lankan) origin. The weight of the Emeralds is 5.50 carats. The Emeralds are of
Category

21st Century and Contemporary Indian Modern Cocktail Rings

Materials

Diamond, Emerald, Pink Sapphire, 18k Gold, White Gold

Set in 18K white Gold, 4.32 carats, natural Zambian Emerald Diamonds Band Ring
By JEWEL HUB
Located in Hong Kong, HK
Diamonds. The weight of the Emeralds is 4.32 carats. The Emeralds are completely natural, without any
Category

21st Century and Contemporary Indian Modern Band Rings

Materials

Diamond, Emerald, 18k Gold, White Gold

Peter Suchy GIA 9.65 Octagon Cut Alexandrite Diamond Platinum Engagement Ring
By Peter Suchy
Located in Stamford, CT
Peter Suchy emerald step-cut 7.68ct natural alexandrite engagement ring with D color emerald-cut
Category

21st Century and Contemporary Engagement Rings

Materials

Alexandrite, Diamond, Platinum

Set in 18K Gold, 32.53 carat Tanzanite cabochon, Emerald Diamond Cocktail Ring
By JEWEL HUB
Located in Hong Kong, HK
A very gorgeous and beautiful, Tanzanite & Emerald Cocktail Ring set in 18K Gold & natural Diamonds
Category

21st Century and Contemporary Indian Modern Cocktail Rings

Materials

Diamond, Emerald, Tanzanite, 18k Gold

House of Igor Carl Fabergé Yellow Gold Amethyst Emerald Diamond Floral Earrings
By Peter Carl Fabergé
Located in New York, NY
amethyst and emerald Accents: 2 round-cut diamonds, approx. 0.05 carats total Weight: Approx. 4 grams
Category

20th Century Russian Retro Clip-on Earrings

Materials

Amethyst, Diamond, Emerald, Gold, 14k Gold, Yellow Gold

9.16 Carat Natural Green Emerald Bracelet 1.45 Carat Natural Diamonds, 14K Gold
Located in Ramat Gan, IL
stone: 42 Color: D - F Clarity: VS Cut: Very good - Excellent Tax Policy Customers are responsible to
Category

2010s Israeli Art Deco Tennis Bracelets

Materials

Diamond, Emerald, 14k Gold

Cushion 1.01cts Diamond GIA D-VS1 18K Gold Halo Engagement Ring
By Dover Jewelry
Located in Miami, FL
emerald cut diamond approx. 1.01 CT, D color, VS1 clarity. Surrounded by a halo of pave set round-cut
Category

21st Century and Contemporary American Art Deco Engagement Rings

Materials

Diamond, 18k Gold

Natural Pear Square Emerald Diamond Bypass Ring in 14K Solid Gold (Certified)
Located in New Delhi, DL
: Natural Emerald Shape: Pear Emerald Carat: 1.42 ct Color: Green Stone: Natural Diamond Shape
Category

21st Century and Contemporary Indian Art Deco Cocktail Rings

Materials

Diamond, Emerald, Gold, 14k Gold, Rose Gold, White Gold, Yellow Gold

Oval Emerald Diamond Open Cuff Ring in 14k Solid Gold (Certified)
Located in New Delhi, DL
diamonds, leading gracefully to two distinct gemstones. The oval-cut emerald sits opposite a sparkling oval
Category

21st Century and Contemporary Indian Art Deco Cocktail Rings

Materials

Diamond, Emerald, Gold, 14k Gold, Rose Gold, White Gold, Yellow Gold

Set in 18K Gold, 2.72 carats, natural Zambian Emerald Diamond Engagement Ring
By JEWEL HUB
Located in Hong Kong, HK
Clarity: Average VS-SI ✦ Diamond Color: Slightly brown ✦ Gemstone: Natural Diamond ✦ Gemstone Cut: Round
Category

21st Century and Contemporary Indian Modern Engagement Rings

Materials

Diamond, Emerald, 18k Gold, White Gold

Set in 18K Gold, 43.33 carats Aquamarine Rose cut Diamonds Chandelier Earrings
By JEWEL HUB
Located in Hong Kong, HK
: Emerald cut ✦ Gemstone Weight: 43.33 ct. Approx. ✦ Gemstone: Natural Diamonds ✦ Gemstone Cut: Round
Category

21st Century and Contemporary Hong Kong Modern Chandelier Earrings

Materials

Aquamarine, Diamond, 18k Gold

2.0 Carat Long Radiant D/VS2 Diamond Hidden Halo Pave Engagement Ring
Located in Miami, FL
GIA certified 2.00 carat natural elongated radiant cut D color VS2 clarity diamond engagement ring
Category

21st Century and Contemporary American Contemporary Engagement Rings

Materials

Diamond, Gold, 18k Gold, White Gold

Alex Jona White Diamond Emerald 18 Karat White Gold Eternity Band Ring
By Alex Jona
Located in Torino, Piedmont
with 12 round cut white diamonds, F-G color, VS clarity, for total 0.57 carats and 20 round cut
Category

21st Century and Contemporary Italian Wedding Rings

Materials

White Diamond, Emerald, 18k Gold, White Gold

Set in 18K white Gold, Zambian Emerald, Mother of Pearl Diamonds Cocktail Ring
By JEWEL HUB
Located in Hong Kong, HK
White Gold & natural Diamonds. The weight of the Emerald is 1.43 carats. The Emerald is completely
Category

21st Century and Contemporary Indian Modern Cocktail Rings

Materials

Diamond, Emerald, Pearl, 18k Gold, White Gold

20th Century 1.80ct Diamond Emerald Target Engagement Cocktail Ring White Gold
Located in Lisbon, PT
A 20th Century Diamond and Emerald Target Cocktail Ring. This spectacular ring designed in a style
Category

Vintage 1930s Portuguese Art Deco Engagement Rings

Materials

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

Set in 18K Gold, natural Emerald, Ruby, Mother of Pearl Diamonds Stud Earrings
By JEWEL HUB
Located in Hong Kong, HK
18K White Gold & natural Diamonds. The weight of the Emerald is 0.87 carats. The Emerald is completely
Category

21st Century and Contemporary Indian Modern Stud Earrings

Materials

Diamond, Emerald, Pearl, Ruby, 18k Gold

Emerald Gemstone Oval Hoop Earrings with Diamond in 14K Solid Gold (Certified)
Located in New Delhi, DL
emeralds and diamonds in pear, marquise, and oval cuts - Bar-set stones offer a fluid, open structure
Category

21st Century and Contemporary Indian Art Deco Stud Earrings

Materials

Diamond, Emerald, Gold, 14k Gold, Rose Gold, White Gold, Yellow Gold

Art Deco 4.38 Carat Step-Cut Diamond Flanked Solitaire Ring, circa 1930
Located in London, GB
Art Deco step-cut diamond flanked solitaire ring. Centrally set with a rectangular step-cut diamond
Category

Vintage 1930s Art Deco Engagement Rings

Materials

Diamond, Platinum

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Emerald Cut Diamond D Color For Sale on 1stDibs

Find the exact emerald cut diamond d color you’re shopping for in the variety available on 1stDibs. Every item for sale was constructed with extraordinary care, often using Platinum, Gold and 18k Gold. You can easily find a 16 antique edition and 90 modern creations to choose from as well. If you’re looking for an emerald cut diamond d color from a specific time period, our collection is diverse and broad-ranging, and you’ll find at least one that dates back to the 20th Century while another version may have been produced as recently as the 21st Century. For this particular accessory, there are many different carat weights to choose from, but 1 Carat and 1.5 Carat versions are of considerable interest. There have been many well-made iterations of the classic emerald cut diamond d color over the years, but those made by Antinori Fine Jewels, Merkaba and Beyond Fine Jewelry are often thought to be among the most beautiful. An emerald cut version of this piece has appeal, but there are also mixed cut and asscher cut versions for sale. When shopping for an emerald cut diamond d color, you’ll find that there are less available pieces for unisex or men today than there are for women.

How Much is a Emerald Cut Diamond D Color?

Prices for an emerald cut diamond d color can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $1,680 and can go as high as $4,450,000, while this accessory, on average, fetches $49,400.

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.