Platinum, Diamond and Emerald Wristwatch
Located in New York, NY
black Arabic numerals, within a modified rectangular diamond-set case flanked by 2 marquise-shaped
Vintage 1920s Art Deco Wrist Watches
Diamond, Emerald, Platinum
Platinum, Diamond and Emerald Wristwatch
Located in New York, NY
black Arabic numerals, within a modified rectangular diamond-set case flanked by 2 marquise-shaped
Diamond, Emerald, Platinum
GIA Certified Rectangular Modified Brilliant Loose Diamond 1.00ct
Located in Laguna Beach, CA
This loose rectangular modified brilliant diamond has a carat weight of 1.0, IF - internally
Diamond
$144,000Sale Price|20% Off
GIA Certified 4.02 Carat Rectangular Modified Brilliant Diamond Ring
Located in Chicago, IL
GIA Certified 4.02 Carat Rectangular Modified Brilliant Diamond Ring An exceptional diamond ring
Diamond, Platinum
$304,000Sale Price|20% Off
GIA Certified 6.02 Carat F/VS2 Rectangular Modified Brilliant Diamond Ring
Located in Chicago, IL
GIA Certified 6.02 Carat F/VS2 Rectangular Modified Brilliant Diamond Ring This breathtaking 6.02
Diamond, White Diamond, Platinum
$392,000Sale Price|20% Off
GIA Certified 8-carat Cut-Cornered Rectangular Diamond Ring
By Antinori Fine Jewels
Located in Chicago, IL
Introducing an extraordinary 8-carat Cut-Cornered Rectangular Modified Brilliant Diamond, showcased
Diamond, White Diamond, Gold, 18k Gold, White Gold
$14,400Sale Price|20% Off
2 Carat Princess Cut Rectangular Brilliant Diamond Engagement Ring
By Antinori Fine Jewels
Located in Chicago, IL
Elegant 1.99 ct "Prince Cut" Rectangular Brilliant Diamond Engagement Ring in Platinum Crafted in
Diamond, White Diamond, Emerald, Platinum
Bespoke GIA Square Pear 19.38 Carat Yellow White Platinum Diamond Drop Earrings
By Hasbani Diamonds
Located in London, GB
- Cornered Rectangular Modified Brilliant GIA Certified Diamonds Y to Z in color with VS1 to VVS2 clarity
Diamond, White Diamond, Yellow Diamond, Platinum
$3,252Sale Price|20% Off
GIA Certified 1.01 Carat Rectangular Brilliant Fancy Yellow I1 Natural Diamond
Located in New York, NY
ITEM DESCRIPTION ID #: NYC55507 Stone Shape: CUT-CORENRED RECTANGULAR MODIFIED BRILLIANT Diamond
Diamond, Yellow Diamond
$1,648Sale Price|20% Off
1.28 Carat Rectangular Brilliant GIA Certified Fancy Yellow VS2 Clarity Diamond
Located in New York, NY
ITEM DESCRIPTION ID #: NYC55743 Stone Shape: CUT-CORENRED RECTANGULAR MODIFIED BRILLIANT Diamond
Diamond
Gia Certified 1.55 Carat Fancy Dark Yellowish Brown Vs2 Rectangular Diamond
Located in New York, NY
ITEM DESCRIPTION ID #: NYC53944 Stone Shape: CUT CORNERED RECTANGULAR MODIFIED BRILLIANT Diamond
Brown Diamond
Issac Nussbaum 1.01 Carat Rectangular Cut Diamond Rose Gold Pendant Necklace
By Issac Nussbaum
Located in New York, NY
rectangular modified brilliant cut diamond, weighing 1.01 carats. I color SI2 clarity. The incredible
Diamond, Rose Gold
$2,124Sale Price|20% Off
1.10 Carat Rectangular Brilliant GIA Certified Fancy Brownish Yellow Vs2 Clarity
Located in New York, NY
ITEM DESCRIPTION ID #: NYC55734 Stone Shape: CUT-CORENRED RECTANGULAR MODIFIED BRILLIANT Diamond
Diamond
Platinum 2.69 Ct. Diamond Ring
Located in Aventura, FL
platinum and featuring a magnificent 1.38-carat rectangular modified brilliant diamond in H color and VVS
Diamond, White Diamond, Platinum
$78,400Sale Price / set|20% Off
GIA Certified 5.02 Carat Fancy Yellow Diamond Ring with Half-Moon Diamonds
By Antinori Fine Jewels
Located in Chicago, IL
refined cut-cornered rectangular modified brilliant cut. The diamond displays a natural fancy yellow color
Yellow Diamond, Gold, Platinum
1.55 Carat Radiant Cut Diamond GIA Certified in 18k White Gold Diamond Ring
Located in Houston, TX
Weight: 3.7 grams Ring Features: 1 Cut-Cornered Rectangular Modified Brilliant Natural Diamond Carat
Diamond, 18k Gold, White Gold
$78,400Sale Price|20% Off
GIA Certified 5.40 carat Fancy Yellow Diamond Ring
By Antinori Fine Jewels
Located in Chicago, IL
, centered by a striking cut-cornered rectangular modified brilliant diamond of elegant geometry and vibrant
Diamond, White Diamond, Yellow Diamond, Gold, 18k Gold, Yellow Gold, Pla...
$312,000Sale Price|20% Off
GIA Certified 12.11 Carat Fancy Intense Yellow Diamond Ring I FLAWLESS
By Antinori Fine Jewels
Located in Chicago, IL
yellow hue with outstanding brilliance. Cut as a Cut-Cornered Rectangular Modified Brilliant, the
Diamond, White Diamond, Yellow Diamond, 18k Gold, White Gold, Yellow Gold
GIA Certified Loose 3.74ct Radiant Cut Natural Diamond E - SI2
Located in Carmel By The Sea, CA
GIA Certified 3.74ct Cut-Cornered Rectangular Modified Brilliant Diamond E, SI2 Description: This
Diamond
$128,000Sale Price|20% Off
GIA Certified 8.25 Carat Fancy Yellow Radiant Diamond 18K Yellow Gold Studs
Located in Chicago, IL
, saturated yellow hue with exceptional transparency. Cut in a modified cut-cornered rectangular shape, each
Diamond, Yellow Diamond, Yellow Gold
$25,600Sale Price|20% Off
Tiffany & Co. 1.51 Carat Lucida Diamond Platinum Engagement Ring
By Tiffany & Co.
Located in Chicago, IL
& Co. Lucida engagement ring featuring a GIA certified 1.51 carat cut-cornered rectangular modified
Diamond, Platinum
$78,400Sale Price|20% Off
GIA Certified 3.01 Carat Radiant Cut Fancy Intense Yellow Diamond Trapezoid Ring
By Antinori Fine Jewels
Located in Chicago, IL
modified brilliant diamond, GIA certified and beautifully set in an elegant combination of 18k yellow gold
Diamond, White Diamond, Yellow Diamond, Gold, 18k Gold, White Gold, Yell...
Peter Suchy GIA Certified 1.42 Carat Diamond Platinum Engagement Ring
By Peter Suchy
Located in Stamford, CT
Peter Suchy Workshop. 1 cut corner natural fancy deep brownish yellow rectangular modified diamond
Diamond, Yellow Diamond, Brown Diamond, Platinum
Ametrine and Diamond Double Halo Ring in 14KT Yellow Gold
Located in New York, NY
Ametrine Weight: 16.85CT Diamond Weight: 0.64CT Total Weight Cut: Modified Rectangular (Ametrine), Round
Diamond, 14k Gold, Yellow Gold
$232,000Sale Price|20% Off
GIA Certified 11.30 Carat Fancy Intense Yellow VS2 Diamond Ring in 18K
By Antinori Fine Jewels
Located in Chicago, IL
diamond, a Modified Rectangular Brilliant Cut, measures 14.65 x 12.13 x 7.44 mm mm, showcasing elegant
Diamond, Yellow Diamond, Gold, 18k Gold, Yellow Gold
Boodles, 11.30 Carats Ashoka Three Stone Diamond Engagement Ring
By Boodles
Located in Chicago, IL
Designer: Boodles Diamond cut: Ashoka ( Round-Cornered Rectangular Modified Brilliant) Center
Diamond, Gold, 18k Gold, Rose Gold
NALLY GIA Natural Fancy Green-Yellow Diamond Ring
Located in New York, NY
NALLY Exquisite Diamond Ring, with 3.60 carat Cut-Cornered Rectangular Modified Brilliant Cut
Yellow Diamond, 18k Gold
$96,000Sale Price|20% Off
GIA Certified 3.03 Carat E Color Internally Flawless Emerald Cut Diamond Ring
By Antinori Fine Jewels
Located in Chicago, IL
-Cornered Rectangular Modified Brilliant Diamond, graded E color and Internally Flawless clarity — a truly
Diamond, White Diamond, Gold, 18k Gold, White Gold
$56,000Sale Price|20% Off
GIA Certified 3.00 Carat E VS1 Princess Cut Diamond Platinum Engagement Ring
By Antinori Fine Jewels
Located in Chicago, IL
Modified Brilliant) diamond, certified by GIA as E color and VS1 clarity. The stone features exceptional
Diamond, Platinum
Platinum Solitaire Diamond Engagement Ring Natural Radiant 2.50ct F/VS2 GIA Sz 7
Located in Carmel By The Sea, CA
Diamonds. The ring contains one cut-cornered rectangular modified brilliant cut center diamond secured in a
Diamond, Platinum
GIA Certified 1.02 Carat Diamond Platinum Engagement Ring
Located in Beverly Hills, CA
modified brilliant diamond, set in classic prongs. With G color and SI-1 clarity, the center diamond
Diamond, Platinum
$480,000Sale Price|20% Off
GIA Certified 8 Carat Radiant Cut E Color Diamond Engagement Platinum Ring
By Antinori Fine Jewels
Located in Chicago, IL
modified brilliant diamond—also known as a radiant cut—certified by GIA as E color and VS2 clarity. The
Diamond, White Diamond, Sapphire, Platinum
.76 Carat Radiant Cut Diamond Sapphire Platinum Three-Stone Engagement Ring
Located in Stamford, CT
rectangular modified brilliant I- VS2 diamond Approximate .76 carats. GIA Certificate # 1196464029 2
Diamond, Sapphire, Blue Sapphire, Platinum
Belle Epoque 1.80 Ct. Diamond Plus Platinum ring
Located in Napoli, IT
modified rectangular cushion cut Diamond rather flat in cut that spreads for 1.80 Ct (8.13 mm. x 7.12 mm
Diamond, Platinum
1 pc Natural Diamond - 0.50 ct - Radiant - I - VS1- GIA Certificate
Located in רמת גן, IL
Natural Cut-Cornered Rectangular modified diamond in a 0.50 carat I VS2 with Beautiful cut and
Diamond
8.02-carat GIA Certified Diamond Ring 18k White Gold Modern Jewelry
Located in Beverly Hills, CA
A modern 18k white gold diamond ring with GIA certified cut-cornered rectangular modified brilliant
Diamond, White Gold, 18k Gold
GIA Certified 1.14 Carat Brown - Green Yellow Diamond 18 KT Gold Engagement Ring
Located in London, GB
- Cornered rectangular modified Diamond situated in the center of the ring featuring 0.80 Carat clarity SI1
Brown Diamond, Diamond, Yellow Diamond, White Diamond, Gold, 18k Gold, W...
$88,000Sale Price|20% Off
GIA Certified 3.24 Carat Radiant Cut Fancy Yellow Diamond Ring in 18K W/Y Gold
By Antinori Fine Jewels
Located in Chicago, IL
, enriching its brilliance with a refined radiance. The cut-cornered rectangular modified brilliant diamond
Yellow Diamond, White Diamond, Diamond, Yellow Gold, White Gold, 18k Gol...
$24,800Sale Price|20% Off
GIA Certified 2.05 Carat Radiant Cut Fancy Yellow Diamond Ring
Located in Chicago, IL
yellow diamond, GIA-certified for its natural origin and even color distribution. The modified
Yellow Diamond, 18k Gold, White Gold, Yellow Gold
14K White Gold Natural Radiant Cut Diamond Ring 1.01ct F/SI1 GIA Twist Pave
Located in Carmel By The Sea, CA
: Crafted in 14-karat white gold, this engagement ring contains one cut-cornered rectangular modified
Diamond, 14k Gold, White Gold
2.01 ct GIA Fancy Yellowish Orange Cushion Diamond Halo Engagement Ring
By J. Birnbach
Located in New York, NY
This ring features a 2.01 carat cut-cornered rectangular modified brilliant diamond, of VS2 clarity
Diamond, Platinum
Peter Suchy GIA Certified 1.53 Carat Diamond Platinum Halo Engagement Ring
By Peter Suchy
Located in Stamford, CT
rectangular modified brilliant cut diamond F-G VS2, approx. 1.53ct GIA certificate # 2205927529 40 round
Diamond, Platinum
Peter Suchy GIA Certified 1.51 Carat Diamond Rose Gold Engagement Ring
By Peter Suchy
Located in Stamford, CT
GIA certifed cut-cornered rectangular modified brilliant cut diamond engagement ring in a 14k rose
Diamond, Rose Gold, Gold, 14k Gold
Radiant Cut Diamond Engagement Ring 1.70 Carat Halo Design in 14 Karat Gold
Located in San Diego, CA
Rectangular Modified Brilliant ) 1.22 CTS Diamond Color & Clarity: O - P / SI2 Accent Diamonds: 32 Round
Diamond, 14k Gold, White Gold
GIA Certified .70CT Fancy Intense Yellow-VS1 5 Stone Band
Located in San Diego, CA
This is a classic 5 stone band set with a 3/4 Carat center Cut Cornered Rectangular Modified
Yellow Diamond, 18k Gold, Platinum
Rectangular Brilliant-Cut Diamond Ring
Located in London, GB
A rectangular brilliant-cut diamond ring, the cut cornered rectangular modified brilliant-cut
Platinum
Art Deco Carved Jade Ruby Diamond Gold Plaque Bracelet
Located in London, GB
-carved jade or a floral design, alternately-set with modified rectangular ruby and diamond-set openwork
Diamond, Jade, Ruby, Yellow Gold
Unavailable|$3,200
GIA Certified 1.03 Carat Rectangular Modified Brilliant Diamond
Located in Hopewell Junction, NY
or other jewelry piece. GIA Report Number: 6177270171 Shape and Cutting Style: Rectangular Modified
Diamond, White Diamond, Yellow Diamond
GIA Reporft Certified Cut-Cornered Rectangular Modified Brilliant Diamond
Located in Surfside, FL
GIA report certified cut-cornered rectangular modified brilliant diamond, 1 carat (F color, VS2
Diamond, Platinum
1.05 Ct Loose H/VS2 Rectangular Modified Brilliant Princess Diamond Gia Cert
Located in Sherman Oaks, CA
1.05 Ct Loose H/VS2 Rectangular Modified Brilliant Princess Diamond GIA Cert Diamond General Info
Diamond
Unavailable|$6,430
GIA Certified Rectangular 0.74 Carat Diamond Platinum Engagement Ring
Located in Surfside, FL
GIA certified rectangular modified brilliant cut diamond: 0.74 carat, E color- SI1 clarity, set in
Platinum
Unavailable|$19,950
Elongated Radiant Cut Diamond Platinum Ring
Located in McLean, VA
Platinum Art Deco style ring center set with one cut-cornered rectangular modified brilliant
Diamond, Platinum
Unavailable|$20,775
Fancy Diamond Solitaire Ring 18 Karat Gold
Located in Cremona, IT
TECHNICAL DETAILS 18Kt white gold 1.50 ct fancy color rectangular modified brilliant diamond certificate
Diamond, Blue Sapphire, 18k Gold
Unavailable|$14,000
Loose Diamond, 2.01ct, GIA Certified, Radiant Brilliant Cut
Located in Vienna, VA
Condition: Offered for your consideration is a previously owned cut-cornered rectangular modified brilliant
Diamond
Unavailable|$11,600
Garrard Diamond and 18 Karat Gold Bow Necklace
By Garrard & Co. Ltd.
Located in Calabasas, CA
channel-set with 48 modified rectangular step-cut diamonds, 4.15 carats, color: F-G, clarity: VS1-VS2, and
Diamond, 18k Gold
Unavailable|$83,000
GIA Yellow Diamond Eternity Band Set in 18 Karat
Located in Atlanta, GA
Yellow Diamond eternity band. All 16 diamonds are cut-cornered rectangular modified brilliant
Diamond, 18k Gold
Unavailable|$65,000
GIA Certified 6.37 Carat Y-Z Diamond Gold Ring
Located in Los Angeles, CA
This ring features a 6.37 carat cut-cornered rectangular modified brilliant cut diamond center, the
Diamond, White Gold, Platinum
Unavailable|$32,612
Platinum and Gold Engagement 2 Carat Diamond Ring F, SI1
Located in Paris, IDF
A platinum and 18Kt yellow gold ring, centered with a 2 carat cornered rectangular modified
Diamond, Yellow Gold, Platinum
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.
Ancient Egyptians referred to the vibrant stone as the “gem of the sun.”
There are many ways to showcase a diamond, from traditional prongs to a smooth, streamlined bezel. Here’s everything you need to consider.
The vintage bombé ring is bursting with color and timeless style.
Zircon is a magnificent and underrated natural gemstone that has been worn and adored for centuries.
Givers of fine gems enjoy surprise more than receivers, and women more than men. Find out what else our survey of 3,000 Americans revealed.
If diamonds don’t seem right, what about a magnificent sapphire, ruby or emerald?
Accounting for just 1 percent of all diamonds, these marvels of nature are exceedingly rare and gorgeously complex.
Learn about these antique jewelry styles, then choose a design that speaks to you.