Jeff Cooper .55 Carat Diamond Platinum Eternity Band Ring
By Jeff Cooper
Located in Stamford, CT
Jeff Cooper 29 round brilliant cut diamonds, G VS approx. .55cts Size 6 and not sizable Platinum
Diamond, Platinum
JEFF COOPER Estate 18k Diamond Five Stone Ring
By Jeff Cooper
Located in Narberth, PA
A fabulous diamond ring by jeweler, Jeff Cooper! Crafted in 18k white gold, the front surface of
Diamond, Gold, 18k Gold, White Gold
Jeff Cooper Carat Princess Cut Diamond Geneva Engagement Ring and Matching Band
By Jeff Cooper
Located in Bethesda, MD
From the Grace collection by Jeff Cooper. The Geneva solitaire engagement ring featuring a 1.00
Diamond, 18k Gold, Platinum
Jeff Cooper Designs Ethan Collection Men's Diamond Wedding Band Ring in Platinum
By Jeff Cooper
Located in Scottsdale, AZ
: 8.85 mm Ring Thickness: 2.5 mm Stamped: PLAT, JEFF COOPER Estate Condition: Very good; Professionally
Diamond, White Diamond, Platinum
Designer J Cooper Gold Frog Brooch Pin Fine Estate Jewelry
By Jeff Cooper
Located in Montreal, QC
Simply Awesome! Finely detailed J COOPER Designer Gold Whimsical Frog Brooch with Ruby Eyes. Hand
Gold, 18k Gold, Yellow Gold
Signed Designer Cooper Gold Frog Brooch Pin Fine Estate Jewelry
By Jeff Cooper
Located in Montreal, QC
in 18 Karat Yellow Gold. Signed and marked: "COOPER 18K". This brooch epitomizes vintage charm and
Ruby, Gold, 18k Gold, Yellow Gold
Jeff Cooper Platinum Princess Cut 3-Stone Diamond Engagement Ring Size 6
By Jeff Cooper
Located in Sherman Oaks, CA
Jeff Cooper Platinum Princess Cut 3 Stone Diamond Engagement Ring Princess Cut Center Diamond
Diamond, Platinum
Unavailable
18 Karat Diamond and Emerald Fish Brooch
By Jeff Cooper
Located in Pikesville, MD
Made with superior quality by fine jewelry designer, Jeff Cooper. This substantial polished 18
White Diamond, Emerald, 18k Gold, Yellow Gold
18 Karat Diamond Bar Bracelet
By Jeff Cooper
Located in Pikesville, MD
diamonds in the center. Expertly crafted by Jeff Cooper designs. Bracelet features 39 high quality diamonds
White Diamond, 18k Gold, Yellow Gold
18 Karat Yellow Gold Band Ring with Round Rubies and Baguettes
By Jeff Cooper
Located in Chicago, IL
18K yellow gold band ring, with 4 round rubys weighing .52cts total and 3 baguette diamonds weighing .32 cts. Finger size 6. May be sized. Retail $2650
Diamond, Ruby, 18k Gold, Yellow Gold
Jeff Cooper Diamond Engagement Ring
By Jeff Cooper
Located in Webster, NY
“Eden Engagement Ring” from designer Jeff Cooper’s “Ever Collection”. The Platinum ring features a
Diamond, Platinum
Platinum Jeff Cooper Diamond Engagement Ring
By Jeff Cooper
Located in Webster, NY
“Eden Engagement Ring” from designer Jeff Cooper’s “Ever Collection”. The Platinum ring features a
Diamond, Platinum
Jeff Cooper GIA Certified Three-Stone Diamond Engagement Ring
By Jeff Cooper
Located in Webster, NY
This stunning Jeff Cooper Diamond Ring features a 1.50CT GIA Certified Round Brilliant Cut Diamond
Diamond, 18k Gold, Platinum
Jeff Cooper .12ctw Diamond Band Ring, 18k Yellow Gold, Ring Size 4
By Jeff Cooper
Located in McLeansville, NC
Stones: diamonds, 28 stones round brilliant .90 mm approximately .12 total carats F-G color, VS clarity Ring Size 4 Width: 2.3 mm Weight: 1.2 dwts. / 1.9 grams A Couple Of Things...
Diamond, 18k Gold, Yellow Gold
Jeff Cooper .12ctw Diamond Band Ring, 18k Yellow Gold, Ring Size 4
By Jeff Cooper
Located in McLeansville, NC
Stones: diamonds, 28 stones round brilliant .90 mm approximately .12 total carats F-G color, VS clarity Ring Size 4 Width: 2.3 mm Weight: 1.2 dwts. / 1.9 grams A Couple Of Things...
Diamond, 18k Gold, Yellow Gold
Jeff Cooper .12ctw Diamond Band Ring, 18k Yellow Gold, Ring Size 4
By Jeff Cooper
Located in McLeansville, NC
Stones: diamonds, 28 stones round brilliant .90 mm approximately .12 total carats F-G color, VS clarity Ring Size 4 Width: 2.3 mm Weight: 1.2 dwts. / 1.9 grams A Couple Of Things...
Diamond, 18k Gold, Yellow Gold
Princess Cut Diamond Engagement Ring
By Jeff Cooper
Located in Chicago, IL
Platinum Engagement Ring by Jeff Cooper, the sides feature Tapered Baguette and Square cut Diamonds
Diamond, Platinum
0.10ctw Diamond Flower Band Ring, 14k White Gold, Ring Size 6
By Jeff Cooper
Located in McLeansville, NC
Add a touch of charm to your jewelry collection with this 0.10ctw diamond flower band ring, crafted in 14k white gold. This size 6 ring features a delicate floral design adorned with...
Diamond, 14k Gold, White Gold
Jeff Cooper GIA Certified 3.33 Carat Sapphire Diamond Platinum Engagement Ring
By Jeff Cooper
Located in Stamford, CT
Jeff Cooper sapphire and diamond three-stone engagement ring. Set with two bright sparkly brilliant
Diamond, Sapphire, Blue Sapphire, Gold, 18k Gold, Yellow Gold
Jeff Cooper Two-Row Round Baguette Diamond Wedding Band, Platinum, 0.75 Carat
By Jeff Cooper
Located in Bellmore, NY
This Round and Baguette-cut Diamond Wedding Band by designer Jeff Cooper will enhance any
Diamond, Platinum
GIA Certified 1.41 Carat Emerald Cut Diamond Platinum Engagement Ring
By Jeff Cooper
Located in Pikesville, MD
Clean and polished, this platinum channel set Jeff Cooper Designs baguette mounting features an
Diamond, White Diamond, Platinum
18 Karat Fancy Link Diamond Bar Bracelet
By Jeff Cooper
Located in Pikesville, MD
Signed Jeff Cooper 18 karat yellow gold fancy link bracelet with channel set diamond bar center
White Diamond, 18k Gold, Yellow Gold
GIA Certified 2.23 Carat Sri Lanka Blue Sapphire Men's Ring
By Gad & Co.
Located in Miami, FL
GIA Certified Sri Lanka Blue Sapphire Men's Ring. This men's ring features a prong set natural blue sapphire with a carat weight of 2.23. The sapphire is octagonal-cut and originat...
Sapphire, Gold, 18k Gold, White Gold
Platinum and Diamond Men's' Dome Ring
Located in New York, NY
This Men's Dome ring features 0.70 carat GIA certified emerald cut D VVS2 diamond set in Platinum. Size 9. Resizable upon request.
Diamond, Platinum
Platinum 18k Gold Two Tone Designer Basket Weave Ring Very Special Large Sz 13
Located in Richmond, CA
Men's designer style wedding band ring. Crafted platinum with 18K gold accents. Features a basket weave pattern with two tone design. Designer signature. Marked PLAT and 18K and with...
18k Gold, Platinum
Kabana Blush Collection Diamond and Mother of Pearl Ring in 14 Karat Rose Gold
By Kabana
Located in Scottsdale, AZ
Ring Size: 7.75 This stunning band ring set in 14 karat rose gold features a distinctive asymmetrical design that catches the eye with its unconventional elegance. The rose gold set...
Pearl, Diamond, Rose Gold, 14k Gold, Gold
$5,175
W 0.17 in L 6.25 in
Princess Cut Ruby and Diamond Oval Hinged Bangle Bracelet in 18 Karat White Gold
Located in Scottsdale, AZ
Beautiful bangle bracelet with a bright pop of color! This gorgeous piece absolutely dazzles with its rich red rubies and bright white diamonds. The sleek, linear design paired with ...
Diamond, Ruby, Gold, 18k Gold, White Gold
1.90ct PLAT Colombian Asscher Emerald Solitaire Ring for Men or Unisex
Located in Jupiter, FL
This striking emerald solitaire ring, designed with a bold masculine aesthetic yet perfectly unisex, features a remarkable Asscher-cut Colombian emerald. Showcasing a vivid medium gr...
Emerald, Platinum
Mens Natural Diamond Ring 14K White Gold Band Wedding
By Estate Jewelry
Located in East Brunswick, NJ
Mens Natural Diamond Ring 14K White Gold Band Wedding This gorgeous ring for a gentleman is finely crafted in solid 14K White gold and set with three white and fiery diamonds. The d...
Diamond, 14k Gold, White Gold
Tacori Platinum Scroll Band 7.5mm Tacori Scrollwork Mans Men's Wedding Ring Band
By Tacori
Located in Austin, TX
This genuine and authentic Tacori man’s wedding band has a distinctive and distinguished scrollwork design that endlessly swirls around the center of it. Made in platinum, this band ...
Platinum
1.70ct 14K Colombian Emerald Oval Cut Cabochon Men's Solitaire Ring
Located in Jupiter, FL
A true classic, this men's 14K gold genuine 1.70 carat Colombian emerald cabochon oval solitaire ring says it all. This stunning piece is made with the finest, genuine materials from...
Emerald, Gold, 14k Gold, White Gold
Sybarite Men's Transformer Ring
By Sybarite Jewellery
Located in London, GB
The transformer ring has two positions and can be used as a wedding ring. The first position features a triangular diamond nestled between the row of white and black diamonds. The se...
White Diamond, Diamond, Black Diamond, White Gold, Gold, 18k Gold
2.66ct Natural Emerald Cut Bluish Green Bezel Set Men's Solitaire Ring
Located in Jupiter, FL
This bold solitaire ring showcases a striking over 2.66-carat Zambian emerald-cut emerald, known for its exceptional eye clarity and remarkable luster. Set in a hefty 10-gram 14K yel...
Emerald, 14k Gold, Yellow Gold
GIA Cert 2.80 Carat Orange Brown Diamond Gold Platinum Men's Ring
Located in Stamford, CT
Brown diamond Men’s ring. GIA certified brown diamond center stone with 12 round pave set diamond shoulders. Center diamond in a platinum bezel set in an 14k yellow gold setting. Nat...
Brown Diamond, Diamond, 14k Gold, Platinum, Yellow Gold, Gold
$1,600,000Sale Price|20% Off
GIA Certified 56 Carat Tennis Diamond Necklace
Located in Chicago, IL
This exceptional necklace showcases a breathtaking arrangement of round brilliant-cut diamonds totaling approximately 56 carats. At its heart lies a dazzling 3-carat centerpiece, sea...
Diamond, 18k Gold, White Gold
3.28 Carat Cushion Cut Indicolite Tourmaline Ring in Platinum, Unisex - Merkaba
By Merkaba
Located in Beverly Hills, CA
Bold, rare, and impeccably refined, this unisex platinum ring by Merkaba Jewelry Beverly Hills features a mesmerizing 3.28 carat cushion cut indicolite tourmaline. Indicolite is priz...
Tourmaline, Indicolite, Diamond, Platinum
GIA Certified 1.47ct Diamond Men's Ring
Located in New York, NY
This is a fabulous platinum men's ring. The ring is centered with a sparkling GIA certified old European cut diamond that weighs 1.47ct. The color of the diamond is K with VS2 clarit...
Diamond, Platinum
Roman Malakov 2.50 Carats Total Baguette Cut Diamond Men's Wedding Band
By Roman Malakov
Located in New York, NY
A unique men's wedding band, showcasing 10 baguette cut diamonds weighing 2.50 carats total, set on a channel setting in a half-way design. Finely made with an 18K white gold mountin...
Diamond, 18k Gold, White Gold
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 rings, vintage engagement rings or Art Deco engagement rings.
Shop antique and vintage diamond rings, diamond necklaces and other extraordinary diamond jewelry on 1stDibs.