Royal Blue Sapphire 5.86ct Cushion GIA Certified Unheated with Inscription
Located in Toronto, Ontario
Number: 2201130156 Shape: Cushion Cutting Style: Modified Brilliant Cut Cutting Style: Crown
2010s Ethiopian Loose Gemstones
Blue Sapphire
Royal Blue Sapphire 5.86ct Cushion GIA Certified Unheated with Inscription
Located in Toronto, Ontario
Number: 2201130156 Shape: Cushion Cutting Style: Modified Brilliant Cut Cutting Style: Crown
Blue Sapphire
Dazzling 1Pc Natural Diamond with 1.02 Ct Cushion E VS1 IGI Certificate
Located in רמת גן, IL
1 sparkling natural square cushion modified brilliant diamond in a 1.02 carat E VS1 with excellent
Diamond
Sparkling 1 Pc Natural Diamond w/ 1.00ct Cushion D IF IGI Certificate
Located in רמת גן, IL
One shimmering cushion modified brilliant cut natural diamond in a 1-carat D IF with excellent
Diamond
Dazzling 1pc Natural Diamonds w/ 1.00 ct Cushion D VVS2 IGI Certificate
Located in רמת גן, IL
One glittering cushion modified brilliant cut natural diamond in a 1 carat D VVS2 with excellent
Diamond
Dazzling 1Pc Natural Diamond w/ 0.80 Carat Cushion F VS1 IGI Certificate
Located in רמת גן, IL
One shimmering cushion-modified brilliant cut natural diamond in a 0.8 carat F VS1 with excellent
Diamond
Dazzling 1pc Natural Diamond w/ 0.70 Carat Cushion H IF IGI Certificate
Located in רמת גן, IL
One glittering cushion modified brilliant cut natural diamond in a 0.7 carat H IF with excellent
Diamond
Sparkling 1pc Natural Diamond w/ 0.73 Carat Cushion D IF IGI Certificate
Located in רמת גן, IL
One dazzling cushion-modified brilliant cut natural diamond in a 0.73 carat D IF with excellent
Diamond
Dazzling 1pc Natural Diamond w/ 0.70 ct Cushion H IF IGI Certificate
Located in רמת גן, IL
One sparkling cushion modified brilliant cut natural diamond in a 0.7 carat H IF with excellent
Diamond
Sparkling 1pc Natural Diamond w/ 1.51 ct Cushion E VS1 IGI Certificate
Located in רמת גן, IL
One shiny and sparkling cushion-modified brilliant cut natural diamond in a 1.51 carat E VVS2 with
Diamond
Sparkling 1pc Natural Diamond w/ 1.51 Carat Cushion E VS1 IGI Certificate
Located in רמת גן, IL
One shiny and sparkling cushion-modified brilliant cut natural diamond in a 1.51 carat E VVS2 with
Diamond
Dazzling 1 Pc Natural Diamond with 0.72ct Cushion D VVS1 IGI Certificate
Located in רמת גן, IL
A sparkling natural square cushion modified diamond in a 0.72 carat D VVS1 with excellent cut. This
Diamond
GIA Certified 10.01 Carat Cushion Cut Diamond Platinum Ring
By J. Birnbach
Located in New York, NY
includes GIA Diamond Grading Report 2185223339, which states that the cushion modified brilliant diamond
Diamond, White Diamond, Platinum
Dazzling 1pc Natural Diamond w/ 1.00 ct Cushion E VVS1 IGI Certificate
Located in רמת גן, IL
One glittery and sparkling cushion modified cut natural diamond in a 1 carat E VVS1 with excellent
Diamond
Dazzling 1pc Natural Diamond w/ 1.01 ct Cushion D VVS2 IGI Certificate
Located in רמת גן, IL
One shimmering cushion modified natural diamond in a 1.01 carat D VVS2 with excellent polish and
Diamond
1pc Natural Diamond with 0.71 Carat Square Cushion D IF IGI Certificate
Located in רמת גן, IL
A sparkling natural cut square cushion modified diamond in a 0.71 carat D IF with excellent cut
Diamond
Sparkling 1pc Natural Diamond w/ 0.70 Carat Cushion D IF IGI Certificate
Located in רמת גן, IL
One shimmering cushion modified natural diamond in a 0.7 carat D IF excellent polish and symmetry
Diamond
1 Pc Natural Diamond, 0.90 Ct, Cushion, J, VS1, GIA Certificate
Located in רמת גן, IL
Natural cushion modified brilliant diamond in a 0.90 carat J VS1 with Beautiful cut and shine. This
Diamond
1 pc Natural Diamond - 0.94 ct - Cushion - I - SI1- GIA Certificate
Located in רמת גן, IL
Natural cushion modified brilliant diamond in a 0.94 carat I SI1 with Beautiful cut and shine. This
Diamond
GIA Certified 2.08 Carat Cushion Diamond Halo Platinum Engagement Ring
Located in Baltimore, MD
number: 6214290429 (see original report pictured for details) Diamond shape: Cushion modified brilliant
Diamond, Platinum
Dazzling 2pcs Natural Diamonds w/ 2.02 ct Cushion D IF IGI Certificate
Located in רמת גן, IL
A pair of shimmering and sparkling cushion modified brilliant cut natural diamonds in a 2.02 carat
Diamond
1 pc Natural Diamond 0.92 Carat Square Cushion D IF IGI Certificate
Located in רמת גן, IL
One sparkling and shiny square cushion modified cut natural diamond in a 0.92 carat D IF with
Diamond
Sold|$8,449 / set
2 Pc Natural Diamonds, 2.03 Ct, Cushion, F, VVS1, GIA Certificate
Located in רמת גן, IL
Pair of natural cushion modified brilliant diamonds in a 2.03 carat F VVS1 with excellent cut and
Diamond
Platinum GIA 8.71ctw Cushion Precious Imperial Topaz Trillion Diamond Ring
Located in Montclair, NJ
--Certification Details:-- Laboratory: GIA Report Number: 5231450611 Shape: Cushion Cutting Style: Modified
Diamond, Topaz, Platinum
1.01 Carat Cushion Brilliant GIA Certified Fancy Yellow SI2 Clarity Diamond
Located in New York, NY
ITEM DESCRIPTION ID #: NYC56424 Stone Shape: CUSHION MODIFIED BRILLIANT Diamond Weight: 1.01ct
Diamond
GIA Certified 0.83CT H VVS1 Cushion Platinum Diamond Halo Engagement Ring
Located in Baltimore, MD
GIA Certified Cushion 0.83CT H VVS1 Platinum Diamond Halo Engagement Ring Size 5.5 GIA Report
Diamond, Platinum
1.09 Carat Cushion Brilliant GIA Certified Fancy Light Pinkish Brown VVS1
Located in New York, NY
ITEM DESCRIPTION ID #: NYC56666 Stone Shape: CUSHION MODIFIED BRILLIANT Diamond Weight: 1.09ct
Diamond
GIA Certified 2.72 Carat Cushion Cut Pave Platinum Engagement Ring
Located in New York, NY
. Purchase includes GIA Diamond Grading Report 5171706383, which states that the 2.72 cushion modified
Diamond, White Diamond, Platinum
Exquisite 1.54 Carat Cushion Diamond Ring in 18K Yellow Gold
Located in רמת גן, IL
sophistication. 1 diamond main stone of 1.54 carat cut: cushion modified brilliant color: G clarity: VVS1 cut
Diamond, 18k Gold, Yellow Gold
Exquisite 1 Carat Cushion Diamond Ring in 18K White Gold
Located in רמת גן, IL
stone of 1 carat cut: cushion modified brilliant color: E clarity: VVS2 cut grade: EX 28 diamond side
Diamond, 18k Gold, White Gold
Exceptional 2 Carat Cushion Diamond Ring in 18K White Gold
Located in רמת גן, IL
carat cushion modified brilliant diamond, boasting exceptional fire and scintillation. This internally
Diamond, 18k Gold, White Gold
Timeless 1 Carat Cushion Diamond Ring in 18K Rose Gold
Located in רמת גן, IL
Embrace captivating femininity and timeless romance with this breathtaking cushion modified
Diamond, 18k Gold, Rose Gold
GIA Certified 1.06 Carat Fancy Pink-Brown Cushion Cut Diamond
Located in Los Angeles, CA
GIA Certified Diamond Shape- Cushion Modified Brilliant Carat Weight- 1.06 Color- Fancy Pink
Diamond, Pink Diamond
GIA Certified 3.02 Carat J VS1 Cushion Platinum Diamond Engagement Ring
Located in Baltimore, MD
1132644961 (please note original report pictured for details) Shape: Cushion Modified Brilliant Carat weight
Diamond, Platinum
Sparking 1 Pc Natural Diamond with 0.84 Ct Cushion E VVS2 GIA Certificate
Located in רמת גן, IL
1 sparkling natural cushion modified brilliant diamond in a 0.84 carat E VVS2 with excellent cut
Diamond
Vintage Platinum GIA 4.01ctw Old Cushion Bullet Diamond Accents Engagement Ring
Located in Montclair, NJ
:-- Laboratory: GIA Report Number: 7206131864 Shape: Cushion Modified Brilliant Measurements: 8.61 x 8.17 x 4.70
Diamond, Platinum
Stunning 1 Pc Natural Diamond with 0.90 Ct Cushion I VVS2 IGI Certificate
Located in רמת גן, IL
1 Sparkling natural cut Square Cushion Modified diamond in a 0.9 carat I VVS2 Very Good cut. This
Diamond
Sparkling 1 Pc Natural Diamond w/ 0.81 ct Cushion H IF IGI Certificate
Located in רמת גן, IL
with unlimited light and fire -known as cushion modified brilliant. This diamond has the highest
Diamond
Dazzling 1 Pc Natural Diamond W/ 1.70 Carat Cushion D VVS1 IGI Certificate
Located in רמת גן, IL
One glittering cushion modified brilliant cut natural diamond in a 1.7 carat D VVS1 with very good
Diamond
Sparkling 1 Pc Natural Diamond with 0.72 Carat Cushion G IF IGI Certificate
Located in רמת גן, IL
A sparkling natural square cushion modified diamond in a 0.72 carat G IF with excellent cut. This
Diamond
Dazzling 1 Pc Natural Diamond with 0.72 Carat Cushion G IF IGI Certificate
Located in רמת גן, IL
A sparkling natural square cushion modified diamond in a 0.72 carat G IF with excellent cut. This
Diamond
Sparkling 1 pc Natural Diamond with 0.90 Carat Cushion D IF IGI Certificate
Located in רמת גן, IL
A sparkling natural square cushion modified diamond in a 0.9 carat D IF excellent cut. This
Diamond
Dazzling 1pc Natural Diamond w/ 0.96 ct square cushion D VS1 IGI Certificate
Located in רמת גן, IL
One shiny and sparkling cushion-modified brilliant cut natural diamond with amazing sparkles in a
Diamond
2 pcs Natural Diamonds - 1.20 ct - Cushion - D 'colourless' - VVS1, GIA Cert
Located in רמת גן, IL
Pair of natural cushion modified brilliant diamond in a 1.20 carat D VVS1 with Beautiful cut and
Diamond
GIA Certified 1.01 Carat Cushion Brilliant Fancy Yellow SI2 Natural Diamond
Located in New York, NY
ITEM DESCRIPTION ID #: NYC56424 Stone Shape: CUSHION MODIFIED BRILLIANT Diamond Weight: 1.01ct
Diamond, Yellow Diamond
1.06 Carat Cushion Brilliant Gia Certified Fancy Dark Brown-Yellow Vvs2 Clarity
Located in New York, NY
ITEM DESCRIPTION ID #: NYC56169 Stone Shape: CUSHION MODIFIED BRILLIANT Diamond Weight: 1.06ct
Diamond
GIA Certified Cushion 1.32 Carat Natural Fancy Yellow Diamond Engagement Ring
Located in Baltimore, MD
GIA Certified Cushion Modified Brilliant 1.32ct Natural Fancy Yellow Diamond Engagement Ring Size
Yellow Diamond, 14k Gold, White Gold
1.23 Carat Cushion Brilliant GIA Certified U-V Color FL Clarity Diamond
Located in New York, NY
ITEM DESCRIPTION ID #: NYC55471 Stone Shape: CUSHION MODIFIED BRILLIANT Diamond Weight: 1.23ct
Diamond
GIA Certified 1.40 Carat Cushion Cut Diamond Platinum Pave Halo Ring
By J. Birnbach
Located in New York, NY
includes GIA Diamond Grading Report 2141819375, which states that the 1.40 carat cushion modified brilliant
Diamond, White Diamond, Platinum
GIA Certified 4.01 Carat Cushion Cut Diamond Solitaire Engagement Ring
Located in New York, NY
Report 6147740991, which states that the 4.01 carat cushion modified brilliant cut diamond has J color
Diamond, White Diamond, 18k Gold, White Gold
Platinum Gold 1.63ctw GIA Cushion & Half Moon Diamond Solitaire Engagement Ring
Located in Montclair, NJ
-23120917-EY --Certification Details:-- Laboratory: GIA Report Number: 2225975085 Shape: Cushion Modified
Diamond, Ruby, Gold, Platinum
Dazzling 1 Pc Natural Diamond w/ 0.81ct Cushion D VVS2 IGI Certificate IGI Cert
Located in רמת גן, IL
Amazing natural square cushion modified diamond in a 0.81 carat D VVS2 with excellent cut. This
Diamond
GIA Certified 4.02 Carat Cushion Diamond Rose Gold Pave Ring
By J. Birnbach
Located in New York, NY
12942213, which states that the 4.02 carat cushion modified brilliant has H color and VS1 clarity.
Diamond, White Diamond, 18k Gold, Rose Gold, Platinum
Dazzling 1 Pc Cushion Natural Diamond with 0.72 Ct D SI2 GIA Certificate
Located in רמת גן, IL
1 pcs Diamond - 0.72 ct - Cushion - D (colourless) - SI2 GIA Natural cushion modified brilliant
Diamond
New 18K Gold Platinum 2.30ct GIA Cushion Diamond Solitaire Engagement Ring
Located in Montclair, NJ
: 6224522940 Shape: Cushion Modified Brilliant Measurements: 8.69 x 7.24 x 4.78 mm Carat Weight: 2.30 carat
Diamond, 18k Gold, Platinum
Sparkling 1 Pc Natural Diamond with 1.02 Ct Cushion D VS1 GIA Certificate
Located in רמת גן, IL
1 Sparkling natural cut cushion modified diamond in a 1.02 carat D VS1 with beutiful cut. This
Diamond
Beautiful 1 pc Cushion Natural Diamond with 0.80 ct D IF - IGI Certificate
Located in רמת גן, IL
amazing and Sparkling natural cut square cushion modified brilliant diamond in a 0.8 carat D IF
Diamond
Stunning 1 pcs Diamond 1.01 ct Cushion D VS1, Natural Diamonds IGI Certificate
Located in רמת גן, IL
1 Luxurious natural cushion modified cut diamond in a 1.01 carat D VS1 gorgeous diamond with a very
Diamond
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.