18K Gold Coco Ring, Tanzanite, Paraiba Tourmalines & Diamonds by Erica Courtney
By Erica Courtney
Located in Virginia Beach, VA
Ring size 5.5 with speed bumps. Erica Courtney, a celebrated jewelry designer based in Los Angeles, has been at the forefront of the jewelry industry for over three decades.
Diamond, Tanzanite, Tourmaline, Paraiba, 18k Gold
18K Gold Cathedral Ring. Padparadscha Sapphire & GIA Diamonds by Erica Courtney
By Erica Courtney
Located in Virginia Beach, VA
Indulge in timeless luxury with the 18K Yellow Gold 3-Stone Cathedral Ring, a stunning creation by renowned designer Erica Courtney. The centerpiece of this exquisite ring is a rare ...
Diamond, Padparadscha Sapphire , 18k Gold
18K Gold Inside Out Huggies with "Carol" Removable Dangles by Erica Courtney
By Erica Courtney
Located in Virginia Beach, VA
Elevate your elegance with the stunning 18K Yellow Gold Inside Out Huggies, accentuated with dazzling diamond and gemstone dangles by the acclaimed designer Erica Courtney. The huggi...
Diamond, Morganite, Imperial Topaz, 18k Gold
18K Rose Gold Ring with Csarite, Pink Sapphires, and Diamonds by Erica Courtney
By Erica Courtney
Located in Virginia Beach, VA
Immerse yourself in opulent elegance with this 18K Rose Gold Ring by the esteemed designer Erica Courtney. The centerpiece of this captivating ring is a stunning 3.12-carat Csarite, ...
Diamond, Pink Sapphire, Other, 18k Gold, Rose Gold
Platinum Diamond & Sapphire Bar Bracelet 1.40CTW Natural Diamonds 7 Inch Toggle
Located in Carmel By The Sea, CA
Stamped “PLAT” along with Erica Courtney’s signature “E” with heart motif, “C" and copyright symbol.
Diamond, Sapphire, Platinum
Erica Courtney Diamond Gold Swirl Link Necklace
By Erica Courtney
Located in Vail, CO
Gold swirl motif link necklace, with eight bezel-set near-colorless round diamond accents weighing approximately 0.48 total carats, in 18k yellow gold, with a gold toggle clasp, sign...
Diamond, 18k Gold
Erica Courtney Pave Diamond Bar Link Bracelet
By Erica Courtney
Located in Greenwich, CT
Link bracelet, designed with two large curved bar-shaped links pavé- set with round-cut diamonds on a collet-set round-cut diamond and oval link chain, with a diamond-set toggle and ...
Diamond, White Gold, 18k Gold
Erica Courtney Pavé Diamond Gold Bar Link Bracelet
By Erica Courtney
Located in Vail, CO
Link bracelet, designed with two large curved bar-shaped links pavé- set with round-cut diamonds on a collet-set round-cut diamond and oval link chain, with a diamond-set toggle and ...
Diamond, 18k Gold
Erica Courtney Citrine and Diamond Ring
Located in Houston, TX
18 karat yellow gold cross ring with citrine and diamonds
Citrine, Diamond, 18k Gold
Erica Courtney Yellow Sapphire And Diamond Ring
Located in Houston, TX
18 karat yellow gold yellow sapphire with Cross with Diamond Trim
Diamond, Sapphire, 18k Gold
Erica Courtney Garnet and Diamond Gold Necklace
Located in Houston, TX
Link Necklace 18 karat gold $450 Garnet and Diamond 18 karat gold neck piece $11,250 Sold Separately or together
Garnet, 18k Gold
Erica Courtney Garnet and diamond Earrings with Huggies
Located in Houston, TX
18k gold and diamond huggies $720 18 karat gold and Diamond and Garnet earrings $12,600 sold separately or together
Garnet, Diamond, 18k Gold
Erica Courtney Pearl and Diamond Earrings with Huggies
Located in Houston, TX
Large Diamond huggies $716 and Pearl Earrings $6750 Sold Separately or together
Diamond, Cultured Pearl, 18k Gold
Erica Courtney Pearl with Brown Diamond and Gold Link
Located in Houston, TX
18 karat Gold Link Necklace $200 18 karat gold pearl with Diamonds and a Brown Diamond
Diamond, Cultured Pearl
Erica Courtney Gold and Diamond Flower Piece With link
Located in Houston, TX
18 karat gold link Necklace $600 and 18 karat Gold and Diamond Flower piece $10,800
Diamond, 18k Gold
Erica Courtney Tahitian Pearl Diamond Gold Skull Pendant Enhancer
By Erica Courtney
Located in Agoura Hills, CA
Featuring a 14mm cultured black Tahitian pearl supported by an 18K white gold diamond set skull pendant enhancer. Stamped 18K EC. Can be worn on a gold chain, leather cord or pearl s...
Black Pearl, Diamond, 18k Gold
1.55 Carat Colombian Emerald & Diamond Three-stone Ring in Platinum 900
Located in Bangkok, TH
Introducing the epitome of luxury and sophistication, behold the breathtaking three-stone, Emerald and Diamond Ring, a true marvel in the world of fine jewelry. Crafted with precisio...
Diamond, Emerald, Platinum
Steven Battelle 18.4 Carats Green Tourmaline 18K Gold Cocktail Ring
By Steven Battelle
Located in Soquel, CA
A beautiful, clear, light-ish green 13 x 17 mm oval tourmaline is held in an ultimately simple organic hammered setting and shank in this classic organic look. This is a luminous, a...
Tourmaline, 18k Gold
$3,999Sale Price|48% Off
Special!!! NWT $7, 789 18KT Magnificent Fancy Triple Tri Color Leaf Diamond Ring
Located in New York, NY
The Following Item we are offering is a Rare Important Radiant 18KT Tri Color Yellow, Rose and White Gold Large Rare Fancy Gorgeous Large Diamond Statement Leaf Crossover Ring. Ring ...
Diamond, Gold, 18k Gold
Steven Battelle 16.8 Carat Cabochon Pink Tourmaline 18K Gold Ring
By Steven Battelle
Located in Soquel, CA
A high-grade almost flawless deep pink Mozambique pink tourmaline 13 x 18 mm cabochon is held in a spiral carved and fluted 4 prong setting atop a substantial split double spiral mot...
Tourmaline, 18k Gold
$35,000
H 2.76 in W 3.55 in D 2.76 in
Victorian Opal and Diamond Crown Tiara Haircomb Necklace, circa 1880s
Located in Idar-Oberstein, DE
Victorian Opal and Diamond Crown Haircomb Necklace, ca. 1880s A very unusual and stunning Victorian crown, set with fiery opal cabochons and old-mine cut diamonds, from the 1880s. T...
Diamond, Opal, Gold, Silver
Roberto Cavalli Blue & White Ming Gown Dress with Fur Trim Wrap S/S 2005 Sz 42IT
By Roberto Cavalli
Located in Saint Petersburg, FL
Roberto Cavalli Vintage Blue & White Ming Gown Dress with Fur Trim Wrap S/S 2005 Sz 42IT. This dress is marked a 42IT. Measurements not stretched reflect a small but has a lot of s...
PIAGET Lapis Diamond Lapis Dial 18K Gold Ladies Watch
By Piaget
Located in Miami, FL
Vintage Piaget's ladies' watch in solid 18-karat white gold. Full-length with a large face Embellished with factory set diamond. Sapphire Crystal, Genuine lapis Dial, 25mm case( w...
Diamond, 18k Gold
Chanel Shiny Alligator Jumbo Double Flap Bag
By Chanel
Located in London, GB
Rare Item - Chanel Shiny Alligator Jumbo Double Flap Bag Shiny black iconic handbag crafted in Alligator skin and gold hardware. Double front flap and signature 'CC' turn-lock clos...
Dalben Magnificent 8.3 Carat Certified Colombian Emerald Yellow Gold Ring
By Oreste Dalben
Located in Como, IT
Dalben design One of a Kind 18k yellow gold satin finishing ring with a magnificent 8,3 carat bezel-set emerald cut Colombian emerald. The Colombian emerald is accompanied by IGI (I...
Emerald, Gold, 18k Gold, Yellow Gold
BUCCELLATI Aquamarine Diamond Ruby 18k Yellow Gold Ring
By Gianmaria Buccellati
Located in New York, NY
This exquisite vintage Gianmaria Buccellati cocktail ring is crafted in 18k brushed and textured yellow gold with white gold accents. This ring is set with a faceted oval 7.0mm x 10....
Aquamarine, Diamond, Ruby, Yellow Gold
NWT $9, 979 Rare 18KT Fancy Large Gorgeous Kunzite Pink Sapphire Diamond Ring
Located in New York, NY
The Following Item we are offering is a Rare Important Radiant 18KT Gold Large Fancy Kunzite Ring. Ring is comprised of A LARGE Gorgeous Fancy Kunzite surrounded by a Beautiful Halo ...
Diamond, Kunzite, Pink Sapphire, Gold, 18k Gold
Iconic Roberto Cavalli FW 2006 Silk Evening Gown Showstopper
By Roberto Cavalli
Located in Berlin, BE
A Roberto Cavalli Masterpiece from 2006 Drenched in the opulence of gilded romance, this Roberto Cavalli silk evening gown is a red-carpet reverie. A symphony of delicate florals, li...
$439,000
W 0.45 in D 0.28 in L 0.52 in
6.47 Carat Paraiba Tourmaline Loose Gemstone, Oval Cut, Mozambique, GIA Certifie
By Merkaba
Located in Beverly Hills, CA
Offered loose by Merkaba Jewelry Beverly Hills, this 6.47 carat Paraiba tourmaline from Mozambique is an extraordinary collector gemstone, presented in a refined oval cut and accompa...
Tourmaline, Paraiba, 18k Gold, Rose Gold, White Gold, Yellow Gold, Platinum
Natural Pink Sapphire Half Eternity Band Ring in 14K Yellow Gold
By VR Jewels
Located in New York, NY
Pink sapphire eternity band in 14K gold symbolizes the everlasting love between a couple. It shows the infinite love you have for your partner. The circular shape represents love whi...
Pink Sapphire, Sapphire, 14k Gold, Yellow Gold, Gold
Natural Pink Sapphire Pinky Dome Ring Birthday Gift in 14k Solid Yellow Gold
By VR Jewels
Located in New York, NY
Natural Pink Sapphire Pinky Dome Ring in 14K Gold featuring natural pink sapphire of 0.19 carat. The gorgeous handcrafted ring goes with every style. Sapphire stimulates concentratio...
Sapphire, Pink Sapphire, Gold, 14k Gold, Yellow Gold
Rare Vintage Van Cleef & Arpels Diamond 18k Yellow Gold Flower Onbell Ring
By Van Cleef & Arpels
Located in Birmingham, GB
Fine Vintage Van Cleef & Arpels Diamond 18k Yellow Gold Onbell Flower Ring. A stunning vintage ring with a unique floral design typical of Van Cleef & Arpels, set with beautiful nat...
Diamond, White Diamond, Gold, 18k Gold, Yellow 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.