.30 Carat Diamond Platinum Engagement Ring
Located in Hicksville, NY
Ring Size: 8.5 Metal Type: Platinum Weight: 2.3 grams Center Diamond Details Shape: Old European
White Diamond, Platinum
.30 Carat Diamond Swirl Platinum Engagement Ring
Located in Stamford, CT
Diamond Swirl design Platinum engagement ring. .30ct full cut center stone with 19 Ideal full cut
Diamond, Platinum
$30,400Sale Price|20% Off
Magnificent 30 Carat Aquamarine & Diamond Platinum Cocktail Ring
Located in Chicago, IL
Magnificent 30 Carat Aquamarine & Diamond Platinum Cocktail Ring A magnificent statement cocktail
Diamond, White Diamond, Aquamarine, Platinum
.30 Carat Sapphire Diamond Platinum Engagement Ring
Located in Stamford, CT
1940's designed sapphire diamond ring. 1 round .30cts round sapphire setting platinum with 18 sing
Diamond, Sapphire, Platinum
.30 Carat Brown Diamond Yellow Gold Engagement Ring
Located in Stamford, CT
Bezel set natural brown and white diamond engagement ring. 1 brown bezel set diamond with two round
Diamond, Brown Diamond, Gold, 14k Gold, Yellow Gold
Peter Suchy .30 Carat Diamond Platinum Eternity Band Ring
By Peter Suchy
Located in Stamford, CT
Simple diamond wedding band ring. A different take on the traditional wedding band, this platinum
Diamond, Platinum
.30 Carat Art Deco Diamond Platinum Engagement Ring
Located in Hicksville, NY
Ring Size: 5.5 Metal Type: Platinum [Hallmarked, and Tested] Weight: 2.8 grams Center Diamond
Diamond, Platinum
30 Carat Paraiba Tourmaline Diamond White Gold Ring
Located in Bucharest, Romania
This exquisite 30-carat Paraiba Tourmaline ring is designed to be a convertible piece, offering the
Diamond, Tourmaline, Paraiba, White Gold
.30 Carat Diamond Art Deco Filigree Platinum Engagement Ring
Located in Stamford, CT
mine cut G-H SI2 diamond, Approx. .30 carats EGL # US 314581201D 8 Old single cut H-I-J Si2-I diamonds
Diamond, Platinum
.30 Carat Art Deco Diamond Platinum Engagement Ring
Located in Hicksville, NY
Ring Size: 3.5 Metal Type: Platinum [Hallmarked, and Tested] Weight: 2.0 grams Center Diamond
Diamond, Platinum
Jabel EGL Certified .30 Carat Round Diamond Platinum Engagement Ring
By Jabel
Located in Stamford, CT
Vintage 1940-1950 Jabel Platinum diamond engagement ring. The brilliance of the .30 carat
Diamond, Platinum
Platinum Natural Diamond .30 Carat 6.5MM Band Ring
Located in Baltimore, MD
Platinum Natural Diamond Leaf Design 6.5mm Band Ring Metal: Platinum Weight: 7.75 grams Diamonds
Diamond, Platinum
.30 Carat Diamond Art Deco White Rose Gold Engagement Ring
Located in Stamford, CT
dances with every movement. 1 Old European H SI2 diamonds 4.4 x 2.3 mm Approximate .30 total carat
Diamond, 18k Gold, Rose Gold, White Gold, Gold
Emerald Diamonds Cluster Ring 14 Karat .30 Carat
Located in New York, NY
carat natural round diamonds 14 karat yellow gold 2 grams Depth of ring 6 mm Size 6 and 1/4 we may
Diamond, Emerald, 14k Gold, Yellow Gold
.30 Carat Art Deco Diamond Platinum Engagement Ring
Located in Hicksville, NY
Ring Size: 6.25 Metal Type: Platinum [Hallmarked, and Tested] Weight: 2.65 grams Center Diamond
Diamond, Platinum
Certified 30 Carat Untreated Jadeite Jade & Diamond Platinum Ring
Located in Miami, FL
HKJ&S Certified Untreated 30 Carat Natural Cabochon Cut Jadeite Jade, Grade A, (Fei Cui) & Diamond
Diamond, Jade, Platinum
GIA Certified .30 Carat Emerald Diamond Yellow Gold Engagement Ring
Located in Stamford, CT
Emerald and diamond engagement ring. GIA certified oval green emerald center stone in a 14k yellow
Diamond, Emerald, Gold, 14k Gold, Yellow Gold
Peter Suchy .30 Carat Diamond Rose Gold Eternity Band Ring
By Peter Suchy
Located in Stamford, CT
Peter Suchy diamond Eternity 18k rose gold wedding band. Custom made in Victorian Revival style
Diamond, Gold, 18k Gold, Rose Gold
.30 Carat Round Brilliant Cut Diamond Halo White Gold Engagement Ring
Located in Stamford, CT
Bright and sparkly diamond engagement ring. Set with a .30ct round brilliant cut center diamond and
Diamond, Gold, 14k Gold, White Gold
.30 Carat Total Weight Art Deco Diamond Platinum Engagement Ring
Located in Hicksville, NY
Ring Size: 5 Metal Type: Platinum [Hallmarked, and Tested] Weight: 3.5 grams Diamond Details
Diamond, Platinum
18 Karat Gold Ring with Huge 24 Carat Emerald and 30 Diamonds
Located in Berlin, DE
30 diamonds of approx. 0.05 carat each. The emerald has a weight of approx. 24 carats and a size of
Diamond, White Diamond, Emerald, 18k Gold
30 Carat Cabochon Blue Sapphire and Diamond Double Halo Cocktail Ring
Located in New York, NY
approx. 30.00 carats with certificate (attached) Diamonds weigh 3.00 carats total. Size 10 US (sizable
Diamond, Blue Sapphire, 18k Gold, White Gold
.30 Carat Art Deco Diamond 14 Karat White Gold Engagement Ring
Located in Hicksville, NY
Diamond Details: Weight: .30 carat Cut: Old European brilliant Color: J Clarity: SI1 Side Stone Details
Diamond, White Gold
1950s 0, 30 Carat Diamond 18 Karat Yellow Gold Solitaire Ring
Located in Poitiers, FR
diamond in dahlia setting. On both sides, the start of the ring is a loop held by a small string. Weight
Diamond, White Diamond, Gold, 18k Gold, Yellow Gold
.30 Carat Total Weight Art Deco Diamond Platinum Engagement Ring
Located in Hicksville, NY
Ring Size: 4 Metal Type: Platinum [Hallmarked, and Tested] Weight: 3.1 grams Center Stone Details
Diamond, Platinum
30 Carat Pear Cut Opal and Diamond 14 Karat Gold Cocktail Ring, Estate
Located in New York, NY
Introducing a timeless cocktail ring featuring a stunning 30-carat pear-shaped opal and diamond
Diamond, Opal, 14k Gold
AGL Certified 30 Carat No Heat Ceylon Blue Star Sapphire & Diamond Halo Ring
By Gad & Co.
Located in Miami, FL
Natural 30 Carat no Heat Ceylon Blue Star Sapphire & Diamond Ring In Platinum This unheated star
Diamond, Star Sapphire, Platinum
14 Karat Rose Gold .30 Carat Natural Diamond Eternity Band Ring
Located in Baltimore, MD
14 Karat Rose Gold .30 Carat Natural Diamond Eternity Band Ring Metal: 14k rose gold Weight: 1.70
Diamond, Rose Gold
$1,612Sale Price / item|20% Off
Diamond Flower Cluster Engagement Ring, .30 Carats in 14 Karat Rose Gold Lv
By Five Star Jewelry
Located in Austin, TX
original price of $2,650. The diamonds weigh a total of 0.30 carats. This ring is a size 6 and it can be
Diamond, 14k Gold, Rose Gold
Hidalgo .30 Carat Diamond White Gold Wedding Band
By Hidalgo
Located in Stamford, CT
Hildago 18k white gold wedding band with .30cts of brilliant cut diamonds 21 round brillinat cut
Diamond, Gold, 18k Gold, White Gold
Large 30 carat Natural Star Sapphire and Diamond Ballerina Ring in Platinum
Located in La Jolla, CA
Large 30 carat Natural Star Sapphire & Diamond Ballerina Ring in Platinum Star Sapphire and
Diamond, Star Sapphire, Platinum
$4,799Sale Price|73% Off
Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Bonita Springs, FL
Carats Color: Ocean Blue, Cut: Oval Diamonds = 0.20 Carats Color: F, Clarity: VVS Metal: 14K White Gold
Diamond, White Diamond, Zircon, Blue Zircon, Gold, 14k Gold, White Gold
.30 Carat Total Weight Diamond Platinum Wedding Band
Located in Hicksville, NY
Total Carat Weight: .30 carat, total weight Color: F Clarity: VS Finger to Top of Stone Measurement
White Diamond, Platinum
$4,799Sale Price|73% Off
Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Bonita Springs, FL
Carats Color: Ocean Blue, Cut: Oval Diamonds = 0.20 Carats Color: F, Clarity: VVS Metal: 14K White Gold
Diamond, White Diamond, Zircon, Blue Zircon, Gold, 14k Gold, White Gold
$4,799Sale Price|73% Off
Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Bonita Springs, FL
Carats Color: Ocean Blue, Cut: Oval Diamonds = 0.20 Carats Color: F, Clarity: VVS Metal: 14K White Gold
Diamond, White Diamond, Zircon, Blue Zircon, Gold, 14k Gold, White Gold
$4,799Sale Price|73% Off
Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Bonita Springs, FL
Carats Color: Ocean Blue, Cut: Oval Diamonds = 0.20 Carats Color: F, Clarity: VVS Metal: 14K White Gold
Diamond, White Diamond, Zircon, Blue Zircon, Gold, 14k Gold, White Gold
$4,799Sale Price|73% Off
Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Bonita Springs, FL
Carats Color: Ocean Blue, Cut: Oval Diamonds = 0.20 Carats Color: F, Clarity: VVS Metal: 14K White Gold
Diamond, White Diamond, Zircon, Blue Zircon, Gold, 14k Gold, White Gold
$4,799Sale Price|73% Off
Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Bonita Springs, FL
Carats Color: Ocean Blue, Cut: Oval Diamonds = 0.20 Carats Color: F, Clarity: VVS Metal: 14K White Gold
Diamond, White Diamond, Zircon, Blue Zircon, Gold, 14k Gold, White Gold
$4,799Sale Price|73% Off
Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Bonita Springs, FL
Carats Color: Ocean Blue, Cut: Oval Diamonds = 0.20 Carats Color: F, Clarity: VVS Metal: 14K White Gold
Diamond, White Diamond, Zircon, Blue Zircon, Gold, 14k Gold, White Gold
$4,799Sale Price|73% Off
Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Bonita Springs, FL
Carats Color: Ocean Blue, Cut: Oval Diamonds = 0.20 Carats Color: F, Clarity: VVS Metal: 14K White Gold
Diamond, White Diamond, Zircon, Blue Zircon, Gold, 14k Gold, White Gold
$4,799Sale Price|73% Off
Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Bonita Springs, FL
Carats Color: Ocean Blue, Cut: Oval Diamonds = 0.20 Carats Color: F, Clarity: VVS Metal: 14K White Gold
Diamond, White Diamond, Zircon, Blue Zircon, Gold, 14k Gold, White Gold
$4,799Sale Price|73% Off
Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Bonita Springs, FL
Carats Color: Ocean Blue, Cut: Oval Diamonds = 0.20 Carats Color: F, Clarity: VVS Metal: 14K White Gold
Diamond, White Diamond, Zircon, Blue Zircon, Gold, 14k Gold, White Gold
$4,799Sale Price|73% Off
Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Bonita Springs, FL
Carats Color: Ocean Blue, Cut: Oval Diamonds = 0.20 Carats Color: F, Clarity: VVS Metal: 14K White Gold
Diamond, White Diamond, Zircon, Blue Zircon, Gold, 14k Gold, White Gold
$4,799Sale Price|73% Off
Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Bonita Springs, FL
Carats Color: Ocean Blue, Cut: Oval Diamonds = 0.20 Carats Color: F, Clarity: VVS Metal: 14K White Gold
Diamond, White Diamond, Zircon, Blue Zircon, Gold, 14k Gold, White Gold
Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Bonita Springs, FL
Carats Color: Ocean Blue, Cut: Oval Diamonds = 0.20 Carats Color: F, Clarity: VVS Metal: 14K White Gold
Diamond, White Diamond, Zircon, Blue Zircon, Gold, 14k Gold, White Gold
Blue Ceylon Sapphire Ring 30 Carats GIA Diamond Cocktail Design by Ella Gafter
By Ella Gafter
Located in New York, NY
The blue Ceylon sapphire and diamond ring features a magnificent oval faceted 30 carat blue Ceylon
Blue Sapphire, Diamond, White Diamond, Sapphire, 18k Gold, White Gold
$4,799Sale Price|73% Off
Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Bonita Springs, FL
Carats Color: Ocean Blue, Cut: Oval Diamonds = 0.20 Carats Color: F, Clarity: VVS Metal: 14K White Gold
Diamond, White Diamond, Zircon, Blue Zircon, Gold, 14k Gold, White Gold
Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Bonita Springs, FL
Carats Color: Ocean Blue, Cut: Oval Diamonds = 0.20 Carats Color: F, Clarity: VVS Metal: 14K White Gold
Diamond, White Diamond, Zircon, Blue Zircon, Gold, 14k Gold, White Gold
Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Bonita Springs, FL
Carats Color: Ocean Blue, Cut: Oval Diamonds = 0.20 Carats Color: F, Clarity: VVS Metal: 14K White Gold
Diamond, White Diamond, Zircon, Blue Zircon, Gold, 14k Gold, White Gold
$4,799Sale Price|73% Off
Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Bonita Springs, FL
Carats Color: Ocean Blue, Cut: Oval Diamonds = 0.20 Carats Color: F, Clarity: VVS Metal: 14K White Gold
Diamond, White Diamond, Zircon, Blue Zircon, Gold, 14k Gold, White Gold
$4,799Sale Price|73% Off
Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Bonita Springs, FL
Carats Color: Ocean Blue, Cut: Oval Diamonds = 0.20 Carats Color: F, Clarity: VVS Metal: 14K White Gold
Diamond, White Diamond, Zircon, Blue Zircon, Gold, 14k Gold, White Gold
$4,799Sale Price|73% Off
Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Bonita Springs, FL
Carats Color: Ocean Blue, Cut: Oval Diamonds = 0.20 Carats Color: F, Clarity: VVS Metal: 14K White Gold
Diamond, White Diamond, Zircon, Blue Zircon, Gold, 14k Gold, White Gold
Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Bonita Springs, FL
Carats Color: Ocean Blue, Cut: Oval Diamonds = 0.20 Carats Color: F, Clarity: VVS Metal: 14K White Gold
Diamond, White Diamond, Zircon, Blue Zircon, Gold, 14k Gold, White Gold
$4,799Sale Price|73% Off
Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Bonita Springs, FL
Carats Color: Ocean Blue, Cut: Oval Diamonds = 0.20 Carats Color: F, Clarity: VVS Metal: 14K White Gold
Diamond, White Diamond, Zircon, Blue Zircon, Gold, 14k Gold, White Gold
Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Bonita Springs, FL
Carats Color: Ocean Blue, Cut: Oval Diamonds = 0.20 Carats Color: F, Clarity: VVS Metal: 14K White Gold
Diamond, White Diamond, Zircon, Blue Zircon, Gold, 14k Gold, White Gold
Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Bonita Springs, FL
Carats Color: Ocean Blue, Cut: Oval Diamonds = 0.20 Carats Color: F, Clarity: VVS Metal: 14K White Gold
Diamond, White Diamond, Zircon, Blue Zircon, Gold, 14k Gold, White Gold
$4,799Sale Price|73% Off
Important Rare Natural Ocean Blue Zircon Ring Diamond Halo 30 Carats 14K Gold
Located in Bonita Springs, FL
Carats Color: Ocean Blue, Cut: Oval Diamonds = 0.20 Carats Color: F, Clarity: VVS Metal: 14K White Gold
Diamond, White Diamond, Zircon, Blue Zircon, Gold, 14k 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.
Antique and vintage rings have long held a special place in the hearts of fine jewelry lovers all over the world.
No matter their origin or specific characteristics, rings are timeless, versatile accessories. They’ve carried deep meaning since at least the Middle Ages, when diamond rings symbolized strength and other kinds of rings were worn to signify romantic feelings or to denote an affiliation with a religious order. Rings have also forever been emblematic of eternity.
Over time, rings have frequently taken the form of serpents, which have long been associated with eternal life, health and renewal. Italian luxury jewelry house Bulgari has become famous for its widely loved Serpenti motif, for example, and its Serpenti ring, like the other accessories in the collection, began as an homage to jewelry of the Roman and Hellenistic eras. The serpent is now a popular motif in fine jewelry. Jewelry devotees have long pined for rings adorned with reptiles, thanks to antique Victorian rings — well, specifically, Queen Victoria’s illustrious engagement ring, which took the form of a gold snake set with rubies, diamonds and an emerald (her birthstone). Designs for Victorian-era engagement rings often featured repoussé work and chasing, in which patterns are hammered into the metal.
Engagement rings, which are reliably intimidating to shop for, are still widely recognized as symbols of love and commitment. 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.
The most collectible antique engagement rings and vintage engagement rings are those from the Victorian, Edwardian and Art Deco eras. Named for the monarchies of the four King Georges, who in succession ruled England starting in 1714 (plus King William’s reign), antique Georgian rings, be they engagement rings or otherwise, are also coveted by collectors. Pearls, along with colored gemstones like garnets, rubies and sapphires, were widely used in Georgian jewelry. The late-1700s paste jewelry was a predecessor to what we now call fashion or costume jewelry.
The Art Nouveau movement (1880–1910) brought with it rings inspired by the natural world. Antique Art Nouveau rings might feature depictions of winged insects and fauna as well as women, who were simultaneously eroticized and romanticized, frequently with long flowing hair. Art Deco jewelry, on the other hand, which originated during the 1920s and ’30s, is by and large “white jewelry.” White metals, primarily platinum, were favored over yellow gold in the design of antique Art Deco rings and other accessories as well as geometric motifs, with women drawn to the era’s dazzling cocktail rings in particular.
Whether you’re hunting down a chunky classic for a Prohibition-themed cocktail party or seeking a clean contemporary design to complement your casual ensemble, find an exquisite collection of antique, new and vintage rings 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.