4 prong Platinum Set Oval Sapphire with Diamond Trillions on side Platinum Ring
Located in Saratoga Springs, NY
#1 Natural Mined Sapphire and Natural Mined Diamond Ring Sapphire Attributes: Oval Faceted 2.61ctw (9.25 X 6.80 X 4.55mm) Lightly Included (L1), 366 moderate blue Proportions: Very G...
Sapphire, Platinum
2.32 Carat Oval Cut Blue Sapphire with Trillion Cut Diamond Sidestones in 18k
By Gad & Co.
Located in Miami, FL
2.32-carat oval cut Blue Sapphire set with 2 trillion cut diamond accents in a 18k yellow gold ring.
Diamond, Blue Sapphire
Oval Cut Sapphire Engagement Ring. 4.60ct Sapphire Trillion Cut Diamond Platinum
Located in New York, NY
Other Details: Primary Stone: Sapphire Center Sapphire Weight: 4.60 Carats Center Sapphire Cut: Oval Cut Secondary Stones: Diamonds Diamond Cut: Trillion Cut Diamond Setting: Prong...
Diamond, Sapphire, Platinum
2 Carat White Diamond Oval and Trillion Three Stone Ring in Platinum
Located in Los Angeles, CA
Beautiful 2.01 ct. good quality, white, and bright diamond oval with 0.41 ct. trillion diamonds. Handmade in platinum.
White Diamond, Platinum
$5,520Sale Price|20% Off
Oval Shape Emerald with Diamond Ring Studded in 18k Rose Gold
By GEM PLAZA
Located in New York, NY
1 Oval shape Emerald with Diamond Ring Studded in 18k Rose Gold 1 Oval shape Emerald in 0.63 CTS 16 Pink Sapphire Baguettes in 2.78 CTS 16 Diamond Baguettes in 0.52 CTS 18 K Rose Gol...
Pink Sapphire, Emerald, Diamond, Rose Gold, 18k Gold
3.96Ct Oval Kyanite Diamond Crowned Dainty 18K White Gold Stud Earrings
Located in Deira, Dubai
3.96Ct Oval Kyanite Diamond Crowned Dainty 18K White Gold Stud Earrings features oval cut kyanite with trillion cut diamond on top making dainty stud earrings.
Diamond, Kyanite, 18k Gold, White Gold, Gold
$2,250Sale Price / item|20% Off
Minimalist 1.94 Carat Emerald Pink Sapphire Hoops Earring 14k Solid Yellow Gold
By VR Jewels
Located in New York, NY
Designed with oval cut emerald and trillion cut sapphire set alternatively studded in solid yellow gold with diamonds.
Emerald, Sapphire, Pink Sapphire, Gold, 14k Gold, Yellow Gold
$6,160Sale Price / item|20% Off
Statement Fine Diamond Emerald and Sapphire Hoop Earrings 14k Solid Yellow Gold
By VR Jewels
Located in New York, NY
Designed with oval cut emerald and trillion cut sapphire set alternatively studded in solid yellow gold with diamonds on the inside of the hoops to make you stand out of the crowd.
Pink Sapphire, Sapphire, Emerald, Diamond, Yellow Gold, 14k Gold, Gold
$6,066Sale Price / set|20% Off
Handmade Natural 3.6Ct SI/H Diamond Drop Earrings 14 Karat White Gold
By Spectrum Jewels
Located in Deira, Dubai
Handmade Natural 3.6Ct SI/H Diamond Drop Earrings 14 Karat White Gold These earrings are masterfully set with oval, round and trillion cut diamonds set in a double drop style earrings.
Diamond, Gold, White Gold, 14k Gold
Natural 3.61 Carat SI/H Multi Diamond Fine Dangle Earrings 18 Karat White Gold
By Spectrum Jewels
Located in Deira, Dubai
Natural 3.61 Carat SI/H Multi Diamond Fine Dangle Earrings 18 Karat White Gold These earrings are masterfully set with oval, round and trillion cut diamonds set in a double drop styl...
Diamond, 18k Gold, White Gold, Gold
Brazilian Lavender Quartz Trillion Ear Jackets with Silver Spinel Studs
By Angel Alchemy Jewelry
Located in Kula, HI
Brazilian Lavender Quartz Trillion Ear Jackets with Silver Spinel Studs in solid 14k rose gold. 18mm in length. These beautiful trillion cut Lavender Quartz ear Jackets are accente...
Quartz, Spinel, 14k Gold
1.50 Carat Ruby with Trillion Diamond Accent 18 Karat Yellow Gold Ring
Located in Sherman Oaks, CA
Beautiful Three-Stone 18k Yellow Gold Ring Features Prong-Set 1.50 carat Natural Ruby Center Stone Two 0.15 carats Trillion (Triangle shaped) Diamond Accent Stones Total Diamond wei...
Diamond, Ruby, 18k Gold, Yellow Gold
5 Carat Emerald Oval and Diamond Trillion Ring in 18K 2 Tone Gold
Located in Los Angeles, CA
Gorgeous 5.61 ct. emerald oval with two white diamond trillions. Handmade in 18k yellow and white gold.
Diamond, Emerald, Gold
Sapphire and Diamond Earrings
By Cayen Collection
Located in Carmel, CA
Unique blend of extremely high quality Oval and Trillion Blue Sapphires with Pear Shaped Diamonds are set in hand fabricated, 18k white gold settings.
Diamond, Sapphire, 18k Gold
Estate Yellow Sapphire and White Diamond Three Stone Ring in 18k Gold
Located in Los Angeles, CA
Estate 5.42 ct. yellow sapphire oval with 0.63 ct. white diamond trillions. Handmade in 18k white and yellow gold.
White Diamond, Yellow Sapphire, 18k Gold
10.1ct Sapphire & Apatite & Diamond Amoeba Ring, 18K Rose Gold, Austy Lee
By Austy Lee
Located in Hong Kong, HK
Each surface is edged with a luminous gradient of pink/blue enamel and finished with soft pink gold plating, showcasing an oval‑cut apatite paired with a trillion‑cut sapphire.
Diamond, Sapphire, Apatite, Pink Diamond, 18k Gold, Rose Gold, Rhodium
Tiffany & Co. GIA Platinum Diamond 1.31 Oval F VVS2 with Trillions Ring
By Tiffany & Co.
Located in Baltimore, MD
GIA Platinum Diamond 1.31 Oval F VVS2 with Trillions Engagement Ring Size 7.
Diamond, Platinum
Oval, Trillion, Round-Cut Tanzanite with Diamond Accents 14K Yellow Gold Pendant
Located in New York, NY
This Pendant is made up of Oval-Cut (1 pcs) 0.70 Carat, Trillion-cut (4 pcs) 0.48 carat, Round-cut (4 pcs) 0.33 carat Prong Setting Tanzanite and Round-Cut Prong Setting Diamond (8 ...
Diamond, Tanzanite, 14k Gold, Yellow Gold
Oval and Trillion-cut Tanzanite With Diamond accents 10K White Gold Ring.
Located in New York, NY
This ring is made up of 4.5X6.5 Oval-Cut Prong Setting Genuine Tanzanite (1 pcs) 0.60 Carat and 4.5MM Trillion-Cut Prong Setting Tanzanite (2 pcs) 0.62 Carat and Round-Cut Prong Sett...
Diamond, Tanzanite, 10k Gold, White Gold
Michael Kneebone Peridot Diamond Carved Lemon Citrine Dangle Earrings
By Michael Kneebone
Located in Austin, TX
The monochromatic composition begins with oval cut and trillion shaped peridot (origin: Brazil) and white diamonds.
Citrine, Diamond, Peridot, 18k Gold
Frederic Sage 9.06 Carat Plum Tourmaline Cocktail Ring
By Frederic Sage
Located in New York, NY
18K PG OVAL CAB PLUM TOURMALINE WITH PAVE TRILLION DIAMOND ON SIDES AND POLISHED 4 PRONG SHANK OAK RING PLUT 9.06 CT, 14 DIA 0.13 Carats
Tourmaline, 18k Gold, Rose Gold
$950Sale Price|50% Off
18K Gold 0.90ct Oval Blue Sapphire & 0.08ct brilliant Diamond Band Ring
Located in เกาะสมุย, TH
A refined balance of color, craftsmanship, and contemporary elegance, this 18k gold band centers a vivid 0.90‑carat oval blue sapphire, celebrated for its rich, saturated hue and lum...
Diamond, Blue Sapphire, 18k Gold
14 Karat White Gold 3 Stone Diamond Ring 1.32cts
Located in Washington Depot, CT
14K White Gold Three Diamond Ring Three round brilliant diamonds are set in a white gold band. Diamonds are approx. .40cts, .50 cts, and .42 cts for a total of approx. 1.32cts. Di...
Diamond, White Gold
$12,800Sale Price|20% Off
1.53 Carat Oval Diamond and Blue Sapphire Ring in Platinum and 18K Yellow Gold
Located in Chicago, IL
Striking and refined, this diamond and sapphire ring captures the perfect harmony of color and brilliance. At its center rests a dazzling 1.53-carat oval diamond, graded E-F in color...
Diamond, Blue Sapphire, Yellow Gold, Platinum
$1,000Sale Price|50% Off
18K Gold 1.00ct Blue Sapphire & 0.20ct Diamond Fine Ring
Located in เกาะสมุย, TH
Wide band ring equipped with medium tone and good saturation fiery oval blue sapphire and sparkling diamonds. Perfect for wearing every day. For those who loves precious blue gemston...
Diamond, Blue Sapphire, 18k Gold
0.90Ct blue sapphire and natural diamond ring in 18k solid gold
Located in Singapore, SG
Kindly note that the stated price for this item is fixed and non-negotiable. We appreciate your understanding and respect for our pricing decision. This ring showcases a solitaire u...
Blue Sapphire, Diamond, 18k Gold
Classic Sapphire Diamond Ring Set in Platinum
Located in New York, NY
Beautiful 2.92 carat oval blue sapphire set with .50 carats of pear shaped white diamonds. Custom platinum setting.
Diamond, Sapphire, Platinum
18K Gold 0.63ct Blue Sapphire & 0.10ct Diamond Ring
Located in เกาะสมุย, TH
An elegant 18k gold ring featuring a 0.63ct oval blue sapphire with rich, saturated color. Six round brilliant diamonds (0.10ct total) frame the center stone with subtle sparkle. The...
Diamond, Blue Sapphire, 18k Gold
Blue Sapphire with Diamond Ring Set in 18 Karat Gold Settings
Located in Bangkok, TH
Blue Sapphire 1.58 carats with Diamond 0.34 carat Ring set in 18 Karat Gold Settings Width: 0.5 cm Length: 0.8 cm Ring Size: 52 Total Weight: 4.88 grams "We first opened doors in...
Diamond, Blue Sapphire, Gold, 18k Gold
$800Sale Price|50% Off
18K Gold 0.86ct Blue Sapphire & 0.07ct Diamond Three Stone Ring
Located in เกาะสมุย, TH
A beautifully balanced three‑stone ring crafted in solid 18k yellow gold, centered with a 0.86ct oval mixed‑cut sapphire displaying a deep greenish‑blue hue—a color profile strongly ...
Diamond, Blue Sapphire, 18k Gold
$1,350Sale Price|55% Off
18k Gold 0.90ct Oval Blue Sapphire & 0.50ct Baguette Diamond Engagement Ring
Located in เกาะสมุย, TH
This beautiful engagement band ring boasts a fine oval blue sapphire! The sapphire is an oval cut and is very clear with slight natural inclusions and the deeper color tone akin to i...
Diamond, Blue Sapphire, 18k Gold
GIA 1.02Ct No Heat Blue sapphire and diamond ring in 18k solid gold
Located in Singapore, SG
Features: Main Gemstone - sapphire Total Carat Weight (1pcs) - 1.02Ct (approx) Measurement of Main Gemstone - 6.1x5.3mm (approx) Color - Blue Cut - Cushion, Faceted Clarity - ...
Diamond, Blue Sapphire, 18k Gold
1.58 Carat Oval Cut Blue Sapphire and Diamond Ring in 18K Yellow Gold
Located in London, England
This Alluring ring features an immaculate 1.58 Carat Oval cut Blue Sapphire at its centre held in place by a four-prong setting and complimented perfectly by the four scintillating r...
Diamond, Blue Sapphire, 18k Gold, Yellow Gold
1.15 Carat Cushion Cut Sapphire Ring. Baguette Diamonds Accent Platinum Ring
Located in New York, NY
"Other Details: Primary Stone: Sapphire Sapphire Weight: Approx 1.15 Carats Sapphire Cut: Cushion Cut Secondary Stones: Diamonds Total Diamond Weight: Approx 0.40 Carats Diamond Cu...
Diamond, Sapphire, Platinum
Blue Sapphire with Diamond Ring set in 18K Gold Settings
Located in Bangkok, TH
Blue Sapphire 0.87 carat with Diamond 0.05 carat Ring set in 18K Gold Settings Width: 1.3 cm Length: 0.6 cm Ring Size: 53 Total Weight: 3.91 grams "We first opened doors in 1980 ...
Diamond, Blue Sapphire, 18k Gold
$1,840Sale Price|20% Off
1.80 Ct Sapphire Diamond Three Stone Ring 14K Gold Blue Sapphire AnniversaryRing
Located in Jaipur, IN
14K Yellow Gold Three-Stone Natural Blue Sapphire & Diamond Band A refined statement of timeless elegance, this 14K Yellow Gold Three-Stone Band features 1.80 carats of natural ...
Diamond, Blue Sapphire, 14k Gold
Blue Sapphire with Diamond Ring set in 18K Gold Settings
Located in Bangkok, TH
Blue Sapphire 2.55 carats with Diamond 0.48 carat Ring set in 18K Gold Settings Width: 1.5 cm Length: 1.0 cm Ring Size: 54 Total Weight: 5.83 grams "We first opened doors in 1980...
Diamond, Blue Sapphire, 18k Gold
Antique Certified 4.97ct Fancy Light Yellow Old Cushion Cut Diamond Ring
Located in London, GB
A beautiful antique 4.97ct old cushion cut diamond three stone ring set in 18k yellow gold and platinum. The ring is centrally set with a stunning antique old cushion cut diamond wh...
Diamond, 18k Gold, Yellow Gold, Platinum
5.03 Carat Royal Blue Sapphire Cushion Three Stone Platinum Engagement Ring
By Merkaba
Located in Beverly Hills, CA
A G.I.A certified 5.03 carat royal blue sapphire cushion cut platinum three stone ring, handcrafted by Merkaba Jewelry Beverly Hills as a refined collector jewel and meaningful alter...
Diamond, White Diamond, Multi-gemstone, Sapphire, Blue Sapphire, Platinum
$687Sale Price|50% Off
18K Gold 0.60ct Bezel Blue Sapphire & 0.10ct Diamond Band Ring
Located in เกาะสมุย, TH
Thai blue sapphire with gorgeous fire and deep strong blue tone- for those who loves sapphires. The 6 diamonds are bright and lively and set neatly. Classic contemporary band ring ac...
Diamond, Blue Sapphire, 18k Gold
French 1930s Art Deco Natural Cornflower Certified Sapphire Diamonds Ring
Located in Poitiers, FR
Ring in platinum ring, dog head hallmark. Sublime and rare Art Deco ring, it is set with an intense blue cushion- cut sapphire of more than 10 carats, held in claws. The basket is op...
Diamond, White Diamond, Sapphire, Blue Sapphire, Platinum
5.04 Carat Cushion cut Blue Sapphire and Diamond Three-Stone Ring in Platinum
Located in London, England
This contemporary three-stone ring features an immaculately alluring cushion cut blue sapphire weighing approximately 5.04 Carats at its centre, with a flawlessly cut trapezium shape...
Diamond, Blue Sapphire, Platinum
18K Yellow Gold Blue Sapphire & Diamond Ring
By Non Branded
Located in Lexington, KY
This stunning ring is made in 18k yellow gold with natural blue sapphire and diamond. The center of the ring showcases a deep blue oval cut sapphire set inside a bezel setting with a...
Diamond, Sapphire, Gold, 18k Gold, Yellow Gold
Oval Cut Emerald Ring. 3.60ct Emerald 1TCW Baguette Cut Diamond Ring Platinum
Located in New York, NY
Other Details: Primary Stone: Emerald Center Emerald Weight: 3.60 Carats Center Emerald Cut: Oval Cut Secondary Stones: Diamonds Total Diamond Weight: Approx. 1.00 Carats Diamond C...
Diamond, Emerald, Platinum
2.95 Carat Blue Sapphire and Diamond Seven Stone Ring set in 18K Yellow Gold
Located in London, England
2.95 Carat Oval-cut Blue Sapphire and Round Brilliant Diamond Seven Stone Ring set in 18K Yellow Gold A timeless blend of regal colour and refined sparkle, this seven-stone ring fe...
Diamond, Blue Sapphire, 18k Gold, Yellow Gold
4.32 Carat Blue Sapphire Diamond Three-Stone Platinum Ring
Located in Beverly Hills, CA
An exquisite blue sapphire, weighing 4.32 carats, is the centerpiece of this contemporary ring. The sapphire, cut in an oval shape, is flanked by two trillion-cut white diamonds, tot...
Diamond, Blue Sapphire, Platinum
Victorian 4.45 Ct Natural No Heat Ceylon Sapphire 1.15 Ct Diamond Trilogy Ring
Located in Napoli, IT
This appealing and quite unique Victorian Style Trilogy ring has a 18 KT solid gold mount that has been totally restored and reinforced in recent times– hand made in a fantastic Tri...
Diamond, Sapphire, 18k Gold, Silver
Old Euro Aquamarine Engagement Ring. 5.30ct Aquamarine Emerald Cut Diamond Halo
Located in New York, NY
Other Details: Primary Stone: Aquamarine Center Aquamarine Weight: 5.30 Carats Center Aquamarine Cut: Old European Cut Secondary Stones: Emeralds, Diamonds Emerald Cut: Carre Cut S...
Aquamarine, Diamond, Emerald, Platinum
CDC Certified Ceylon Sapphire and Diamond Ring in Platinum
Located in Great Neck, NY
Certified Emerald Cut Ceylon Sapphire weighing 10.98 carats Measuring (14.33x11.39x6.64) mm Trapezoid Diamonds weighing .74 carats H-VS Set in Platinum Ring 10.28 g
Diamond, Sapphire, Blue Sapphire, Platinum
GIA Certified 4.55 Carat Ceylon Sapphire & Diamond Ring in Platinum
Located in Great Neck, NY
GIA certified cushion Ceylon Sapphire weighing 4.55 carats Measuring (10.22x9.80x5.25) mm Trapezoid diamonds weighing .67 carats Diamond quality is G-VVS2 Set in platinum ring 8.07 g...
Diamond, Sapphire, Blue Sapphire, Platinum
1900s GIA 2.87ctw Antique Edwardian OLD EUROPEAN Diamond Cluster 14KYG Pl Ring
Located in New York, NY
Antique Edwardian GIA 2.87ctw OLD EUROPEAN Diamond Cocktail Cluster 14K Gold Platinum Ring, Circa 1900s. This breathtakingly beautiful, darling, early-twentieth century Edwardian Fl...
Diamond, 14k Gold, Platinum
2.58 Carat Oval Cut Blue Sapphire Ring with Diamonds in 18 Karat Yellow Gold
Located in Scottsdale, AZ
Ring Size: 7.25 A breathtaking combination of elegance and sophistication, this sapphire and diamond ring exudes timeless beauty. At its heart lies a stunning oval-cut blue sapphire...
Diamond, Sapphire, Blue Sapphire, Gold, 18k Gold, Yellow Gold
3.42 Carat Oval Blue Sapphire and Diamond Ring in 18K Yellow Gold
Located in London, England
This regal ring features a 3.42 Carat oval Blue Sapphire at its centre, held in a claw setting on an 18K Yellow Gold band. On either side of it, in a rub-over setting, are 3 scintill...
Diamond, Blue Sapphire, 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.