Mid-Century 14K White Gold, Aquamarine, & Marquise Diamond Halo Cocktail Ring
Located in Philadelphia, PA
With a prong-set square cushion modified brilliant cut 11.30± ct aquamarine (transparency: transparent, color hue: blue, saturation: light to moderate) surrounded by a halo of 26 mar...
Aquamarine, Diamond, 14k Gold, White Gold
$84,000Sale Price|20% Off
GIA Certified 5.01 Carat Fancy Yellow Cushion Diamond Ring in Platinum
By Antinori Fine Jewels
Located in Chicago, IL
A striking and sophisticated cocktail ring showcasing a GIA certified 5.01 carat cushion modified brilliant cut diamond, graded Fancy Yellow color and SI1 clarity.
Diamond, Yellow Gold, Platinum
Platinum Ballerina Ring 3ct Tapered H VS Diamonds 2.25ct Sapphire Size 7.25
Located in New York, NY
Featuring a 2.25 carat cushion modified brilliant cut sapphire, its deep blue hue is mesmerizing.
Diamond, Sapphire, Platinum
GIA Certified 15.89 Carat Cushion Cut Orange Sapphire
Located in Los Angeles, CA
GIA Certified Cushion Cut Orange Sapphire Shape-Cushion Modified Brilliant Cut Carat Weight- 15.89 GIA Report Number- 5232583292 Measurements- 14.20 x 13.06 x 8.90 MM Treatment-...
Sapphire
Unisex 18k Yellow Gold Large GIA 3.50ct I VVS2 Cushion Diamond Solitaire Ring
Located in Montclair, NJ
Stock Number: MK-4302001059 --Certification Details:-- Laboratory: GIA Report Number: 2141953198 Shape: Cushion Modified Brilliant Measurements: 9.18 x 8.37 x 5.65 mm Carat Weight:...
Diamond, Gold, 18k Gold, Yellow Gold
Tiffany & Co. 2 Carat Cushion Cut Diamond Legacy Engagement Ring
By Tiffany & Co.
Located in Chicago, IL
Centered by a magnificent cushion modified brilliant cut natural diamond weighing 2 carats, the stone is graded I color and VVS1 clarity, ensuring a mesmerizing display of light and ...
Diamond, Platinum
$680,000Sale Price|20% Off
GIA Certified 15.31 Carat Fancy Intense Yellow Cushion Diamond Ring
Located in Chicago, IL
Set as an elegant two-tone 18k yellow and white gold ring, this exceptional GIA-certified Fancy Intense Yellow diamond weighs an impressive 15.31 carats and is fashioned in a refined...
Diamond, Yellow Diamond, 18k Gold, Yellow Gold
$224,000Sale Price|20% Off
GIA Certified 10 Carat Fancy Intense Yellow Cushion Diamond Three-Stone Ring
By Antinori Fine Jewels
Located in Chicago, IL
The center stone is a Cushion Modified Brilliant cut weighing 10 carats, graded Fancy Intense Yellow, Natural Color, VS2 clarity, with even color distribution.
Diamond, White Diamond, Yellow Diamond, 18k Gold, White Gold, Yellow Gold
GIA Certified 24.18 Carat Unheated Color Change Sapphire and Diamond Ring
Located in beverly hills, CA
With GIA report # 2151886148 stating that the cushion modified brilliant cut sapphire is unheated.
Diamond, Blue Sapphire, Sapphire, 18k Gold, White Gold
Natural Fancy Pink Color GIA Certified Diamond Bracelet
Located in New York, NY
Set with eight pink color cut-cornered rectangular, square, and cushion modified brilliant-cut fancy intense pink, fancy intense orangy pink, fancy orangy pink diamonds weighing 2.57...
Diamond, Pink Diamond, Rose Gold, Platinum
Ravishing 18k Yellow Gold Halo Ring w/ 2.05 ct Natural Diamonds IGI Cert
Located in רמת גן, IL
A beautiful ring with a dazzling 1.5 carat square cushion modified brilliant natural diamond. It has 0.55 carat of side diamonds which add more to its elegance.
Diamond, 18k Gold, Yellow Gold
8.60 ct. Ceylon No-Heat Sapphire & Diamond Halo Ring by Spectra Fine Jewelry
By Spectra Fine Jewelry
Located in New York, NY
The sapphire is certified natural and untreated for heat by GRS, origin Sri Lanka, cut cushion modified brilliant/step, 12.87 x 11.08 x 6.11 mm.
Diamond, Sapphire, Platinum
GIA Certified 32.3 Carat Fancy Intense Yellow Diamond Ring
Located in Yorba Linda, CA
Cushion Modified Brilliant FANCY INTENSE YELLOW and White Diamond Ring Gross Weight 16.80 gms 18k Gold 10.340 gms One Cushion Modified Brilliant FANCY INTENSE YELLOW Diamond VS2- 30...
Yellow Diamond, 18k Gold
GIA Certified 32.3 Carat Fancy Intense Yellow Diamond Ring
Located in Yorba Linda, CA
Cushion Modified Brilliant FANCY INTENSE YELLOW and White Diamond Ring Gross Weight 16.80 gms 18k Gold 10.340 gms One Cushion Modified Brilliant FANCY INTENSE YELLOW Diamond VS2- 30...
Yellow Diamond, 18k Gold
$200,000Sale Price|20% Off
7.02 Carat Cushion-Cut Diamond Three-Stone Ring GIA Certified
By Antinori Fine Jewels
Located in Chicago, IL
An exceptional statement of timeless elegance, this breathtaking ring showcases a magnificent 7.02 carat cushion modified brilliant-cut diamond at its center, radiating extraordinary...
Diamond, White Diamond, Platinum
18k White Gold Statement Ring With 4.10 TCW - Natural Fancy Colored Diamond Main
Located in Ramat Gan, IL
Specifications Main stone: 4.10ct Cushion Modified Brilliant Fancy Intense Yellow Color VS Clarity, with IGI certificate Surrounded by 2.97ct Heart Brilliant Cut Diamond, D-E Color, ...
Diamond, 18k Gold, White Gold
$140,600Sale Price|24% Off
GIA Certified 3.59 Carat Fancy Pink-Brown Diamond Cushion Ring
Located in Chicago, IL
The diamond is cut in a cushion modified brilliant, measuring 8.77 x 7.95 mm, offering an elegant spread and excellent face-up presence.
Diamond, Pink Diamond, Platinum
$113,200Sale Price|20% Off
GIA Certified 5.80 Total Carat Fancy Yellow Cushion Diamond Ring
Located in Chicago, IL
At its center rests a striking 5.00-carat Fancy Yellow cushion modified brilliant diamond, displaying an Even color distribution and a refined VS2 clarity.
Diamond, Yellow Diamond, Platinum
GIA Certified 1.90ct Natural Cushion Cut Diamond Double Halo Engagement Ring Plt
Located in Carmel By The Sea, CA
GIA Certified 1.90ct Natural Cushion Cut Diamond Double Halo Engagement Ring, Platinum, 1.99ctw Pavé Accents, Size 6.25 Custom-made platinum diamond ring featuring a 1.90 carat natu...
Diamond, Platinum
$107,200Sale Price|20% Off
GIA Certified 6.61 Carat Fancy Yellow Internally Flawless Cushion Diamond Ring
By Antinori Fine Jewels
Located in Chicago, IL
An exquisite GIA Certified 6.61 carat Fancy Yellow diamond ring, centered by a natural cushion modified brilliant-cut diamond of exceptional quality.
Diamond, White Diamond, Yellow Diamond, 18k Gold, Yellow Gold, Platinum
$68,000Sale Price|20% Off
Tiffany & Co. Platinum Soleste 2 Carat Diamond Ring
By Tiffany & Co.
Located in Chicago, IL
At its center lies a 2 carat cushion modified brilliant-cut diamond, graded G color and VS1 clarity, radiating exceptional brilliance and fire.
Diamond, White Diamond, Platinum
$100,000Sale Price|20% Off
SSEF Certified 6.21 Carat No-Heat Blue Sapphire Ring
By Antinori Fine Jewels
Located in Chicago, IL
A striking and elegant sapphire ring centered by a remarkable 6.21 carat natural blue sapphire, certified by SSEFThe gemstone is beautifully fashioned in a cushion modified brilliant...
Blue Sapphire, Platinum
Peter Suchy GIA Certified 1.72ct Cushion Cut Diamond Halo Ring
By Peter Suchy
Located in Stamford, CT
Custom designed to show very little metal all diamonds with secure micro pave. Custom cut cushion modified brilliant cut diamond with excellent sparkle.
Diamond, Platinum
GIA Certified Natural Diamond 14K 585 Yellow Gold Pendant
Located in New York, NY
Of Diamonds: 9 - Diamond Clarity Grade: Side – VVS/ Center – VS1 - Diamond Color Grade: Side - F-G/ Center - J - Diamond Shape: Side - Round Full Cut/ Center – Cushion Modified Brill...
Diamond, 14k Gold, Yellow Gold
$384,000Sale Price|20% Off
GIA Certified 15.31 Carat Fancy Intense Yellow Cushion Diamond Ring in 18K
By Antinori Fine Jewels
Located in Chicago, IL
An exceptional high-jewelry ring centered on a GIA-certified natural Fancy Intense Yellow diamond weighing 15.31 carats, cut as a cushion modified brilliant and set in rich 18 karat ...
Diamond, White Diamond, Platinum
GIA Certified 1.56 Carat Yellow Diamond 18 Karat White Gold Ring
Located in London, GB
This Gorgeous GIA Certified 1.13 Carat natural fancy deep brownish greenish-yellow cushion modified brilliant cut diamond which is set in the center of the ring has a VS1 clarity wit...
Diamond, White Diamond, Yellow Diamond, Gold, 18k Gold, White Gold
$56,000Sale Price|20% Off
3.01 Carat GIA Fancy Intense Yellow Cushion Cut Diamond Ring
Located in Chicago, IL
A breathtaking masterpiece, this exceptional ring showcases a magnificent 3.01 carat GIA-certified Fancy Intense Yellow natural diamond, expertly fashioned in a beautifully proportio...
Diamond, 18k Gold, Yellow Gold
GIA Certified 2.01 Carat White Gold Diamond Engagement Ring
Located in Beverly Hills, CA
This gorgeous 14K white gold engagement ring showcases a breathtaking GIA-certified 2.01-carat cushion modified brilliant-cut diamond, prong-set to highlight its radiant brilliance.
Diamond, 14k Gold, White Gold
18K YG Pendant Necklace with 0.32ct Round Diamonds Pearls & Smokey Quartz
Located in New York, NY
The pendant showcases a magnificent array of smokey quartz stones in various shapes: an emerald cut, an oval shape, and a cushion modified brilliant cut, creating an eye-catching foc...
Diamond, Pearl, Quartz, 18k Gold, Yellow Gold
18K 1.20 CTW Diamond Ring with Platinum Head and GIA Online Report
Located in Ocala, FL
The design centers on a 0.96-carat cushion modified brilliant-cut diamond, graded G color and VVS1 clarity, creating a bright and refined focal point.
Diamond, 18k Gold, Platinum
Vintage Derco Platinum Diamond Solitaire Engagement Ring 1.51ct GIA cert
Located in Beverly Hills, CA
This refined platinum solitaire ring showcases a 1.51 carat cushion modified brilliant cut diamond with J color and VS2 clarity, offering a beautiful balance of presence, fire, and e...
Diamond, Platinum
Exquisite 2.31ct Diamond Ring with GIA Certificate
Located in רמת גן, IL
The centerpiece is a dazzling 1.5 carat cushion modified brilliant diamond, boasting the coveted D color (colorless) and VVS2 clarity (minute inclusions barely visible under 10x magn...
Diamond, 18k Gold, White Gold
$248,000Sale Price|20% Off
GIA Certified 6.95 Carat Cushion Cut Diamond Three-Stone Ring
Located in Chicago, IL
An exceptional three-stone diamond ring centered by a magnificent 6.95 carat cushion modified brilliant cut diamond, accompanied by a GIA Natural Diamond Grading Report.
Diamond, White Diamond, Platinum
$112,000Sale Price|20% Off
6.61 Carat Fancy Yellow Internally Flawless Diamond Ring
By Antinori Fine Jewels
Located in Chicago, IL
Measuring 11.27 x 10.00 mm, the cushion-shaped diamond exhibits remarkable brilliance and scintillation, enhanced by its modified brilliant faceting.
Diamond, White Diamond, Yellow Diamond, Platinum, 18k Gold, Yellow Gold
$78,400Sale Price|20% Off
SSEF Certified 6.23 Carat Unheated Pink Sapphire Diamond Ring
Located in Chicago, IL
The sapphire is described as an antique cushion, modified brilliant/step cut, measuring 9.79 x 9.48 x 6.73 mm.
Diamond, Pink Sapphire
Natural GIA Certified 1.21ct F VS1 14K Gold Cushion Diamond Engagement Ring
Located in Carmel By The Sea, CA
GIA Certified 1.21ct Cushion Diamond Engagement Ring F VS1 14K White Gold 2.33CTW Size 6 🡆 Description: This is a natural diamond engagement ring, crafted in solid 14-karat white g...
Diamond, 14k Gold, White Gold
$3,600Sale Price|20% Off
1.00ct Loose Cushion Cut Natural Diamond GIA Certified, H Color, VS2 Clarity
Located in San Diego, CA
Brilliant 1.00ct loose cushion modified brilliant-cut diamond that's been GIA certified.
Diamond
14K White Gold, Multi-Gemstone, & Diamond Parrot or Macaw Bird Brooch
Located in Philadelphia, PA
In the form of a parrot or macaw perched atop a large checker board cushion modified brilliant cut natural blue topaz (11.50 Ct±).
Diamond, Yellow Sapphire, Topaz, Tsavorite, Multi-gemstone, 14k Gold, Wh...
Natural GIA Certified 1.21ct Cushion Diamond Engagement Ring F VS1 14K Gold
Located in Carmel By The Sea, CA
Title GIA Certified 1.21ct Cushion Diamond Engagement Ring F VS1 14K White Gold 2.33CTW Size 6 Description This is a natural diamond engagement ring crafted in solid 14-karat white ...
Diamond, 14k Gold, White Gold
Tiffany & Co. Rare Large Enchanted Bloom Diamond Key Pendant 2.30ct TDW 44206721
By Tiffany & Co.
Located in Mayfair, London, London
The pendant comprises of an open-work key motif set with one cushion modified brilliant cut diamond, weighing 0.80ct, fancy yellow colour, VVS1 clarity. 6 marquise brilliant cut diam...
Diamond
GIA Certified 5.50Ct Natural Ceylon Alexandrite Ring Accented With Side Diamonds
By The Diamond Source
Located in San Diego, CA
It is set with a beautiful Cushion Modified Brilliant Cut Natural Alexandrite with a GIA report.
Alexandrite, Diamond, Platinum
$124,000Sale Price|20% Off
GIA Certified 3 Carat VVS2 Fancy Vivid Yellow Diamond Engagement Ring
Located in Chicago, IL
This exquisite engagement ring features a stunning 3.01-carat cushion modified brilliant diamond, GIA certified, showcasing an exceptional Fancy Vivid Yellow color with even distribu...
Yellow Diamond, Diamond, Yellow Gold, White Gold, 18k Gold
GIA Certified 1.81 Carat Diamond Platinum Engagement Ring
Located in Beverly Hills, CA
This exquisite platinum engagement ring centers a GIA-certified 1.81-carat cushion modified brilliant diamond, prong-set to showcase its remarkable brilliance.
Diamond, Platinum
GIA Certified 2.01ct Fancy Intense Yellow Diamond Three-Stone Ring
Located in La Jolla, CA
GIA Certified Natural Fancy Intense Yellow 2.01 carat Cushion with Side Diamonds in Platinum & 18k Yellow Gold Fancy Yellow Diamond Three-stone Ring features a Natural Fancy Int...
Diamond, Yellow Diamond, Platinum
3 Carats Natural Brilliant Cut Apple Green Color Peridot Gemstone for Jewelry
Located in Peshawar, PK
Gemstone Details: Loose Faceted Peridot Weight 3.2 carats Color Vivid Lime Green Dimension 10.1*8.1*5.8 mm Origin Supat valley Pakistan Treatment None Transparency Transparent ...
Peridot
$70,400Sale Price|20% Off
GIA Certified 3.05 Carat Fancy Intense Yellow Diamond Platinum Ring
Located in Chicago, IL
The diamond is beautifully cut in a cushion modified brilliant, showcasing a rich and saturated yellow color with even distribution, placing it firmly within the highly desirable Fan...
Diamond, White Diamond, Yellow Diamond, Platinum
Platinum GIA 10.19ctw Elongated Emerald Cut Sapphire & Diamond Custom Made Ring
Located in Montclair, NJ
Stock Number: MK-190512936 --Sapphire Certification Details:-- Laboratory: GIA Report Type: Sapphire Origin Report GIA Report Number: 2235152785 Shape: Octagonal Cutting Style: Step...
Diamond, Sapphire, Platinum
Exceptional GIA Graded 2.02 Carat Cushion Diamond Ring Pave Set 14K White Gold
Located in Aventura, FL
Details: GIA Grading Report: 2157412655 Measurements: 7.32 x 6.86 x 4.68 mm Cutting Style: Cushion Modified Brilliant Center: Cushion Cut Natural Diamond Diamonds: Pave Diamonds Car...
Diamond, 14k Gold, White Gold
$189,000Sale Price|20% Off
Alexander Beverly Hills GIA 1.38ct Fancy Blueish Green & Pink Diamond Ring
By Alexander Beverly Hills
Located in BEVERLY HILLS, CA
GIA Report Number 5266241566 Item Number RG3722 Center, 1 Cushion Modified Brilliant = 1.36ct Fancy Light Bluish Green color & VS2 clarity Side, 129 Round Brilliant Diamonds = 1.36...
Diamond, Blue Diamond, Pink Diamond, Gold, 18k Gold, Rose Gold
1.02ct Cushion Cut Modified Brilliant Light Yellow Diamond Ring
Located in Hong Kong, HK
Center Stone: 1.02ct Cushion Cut Modified Brilliant Diamond with GIA Certificate 7442538933 Center Diamond measurement: 5.83mm x 4.87mm x 3.77mm Center Diamond Quality: W to X range ...
Yellow Diamond, 18k Gold, White Gold
$268,000Sale Price|20% Off
GIA Certified Fancy Yellow Diamond Stud Earrings 16.41 Carat Studs
Located in Chicago, IL
This exceptional pair of stud earrings is crafted in 18K yellow gold and features two natural Fancy Yellow diamonds, each accompanied by an individual GIA Natural Colored Diamond Rep...
Diamond, Yellow Diamond, Yellow Gold
2.70ct GIA Natural Cushion Cut Diamond Platinum Wedding Ring with Pave Diamonds
Located in Aventura, FL
Details: GIA Grading Report: 1139628483 Measurements: 8.32 x 7.44 x 5.13 mm Cutting Style: Cushion Modified Brilliant Center: Cushion Cut Natural Diamond Diamonds: Pave Diamonds Cara...
Diamond, Platinum
Gia 2.63 carat Fancy Brownish Greenish Yellow- Vvs2 None fluorescent
Located in Ramat Gan, IL
At 8.09 x 7.42mm it wears bigger than you’d expect for 2.63ct — real size on the hand or the finger. Specs: * Shape: Cushion Modified Brilliant (Spanish/California cushion style) * C...
Diamond, Yellow Diamond, Brown Diamond
GIA Certified 5.01ct Natural Cushion Cut Diamond Engagement Ring White Gold
Located in Aventura, FL
Details: GIA Grading Report: 5221062536 Shape and Cutting Style: Cushion Modified Brilliant Style: Pave Diamond Ring Measurements: 11.06 x 9.21 x 6.44 mm Carat Weight: 5.01ct Color G...
Diamond, White Gold
18k White Gold 1.27ctw GIA Cushion Cut Diamond Solitaire w/ Halo Engagement Ring
Located in Montclair, NJ
Stock Number: EK-160245169-23063010-EY --Certification Details:-- Laboratory: GIA Report Number: 1213803194 Shape: Cushion Modified Brilliant Measurements: 5.58 x 5.43 x 3.72 mm Car...
Diamond, White Gold
14.06 Green Tourmaline Solitaire Ring-Cushion Cut-18KT White Gold-GIA Certified
By Carson Gray
Located in London, GB
Mint Green Solitaire Creator: Carson Gray Jewels Ring Size: 6.5 Metal: 18KT White Gold Stone: Mint Green Tourmaline Stone Cut: Cushion; Modified Brilliant Weight: 14.06 carats Styl...
Tourmaline, 18k Gold, White Gold
Natural Fancy Intense Yellow Diamond Engagement Ring, 1.02ct GIA
Located in Honolulu, HI
Ring Specifications: Metal: 18k white gold Ring Size: 6.50 Center Diamond Specifications: Diamond Report: GIA Carat weight: 1.02 ct. Shape: Cushion Modified Brilliant Color: Natural...
Diamond, Yellow Diamond, 18k 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.