1.55ct Natural Parti Colour Sapphire Diamond 950 Platinum Halo Pendant Necklace
By Gems and Jewels UK
Located in Birmingham, GB
Unique Natural Green Yellow Blue Parti Colour Sapphire & Diamond 950 Platinum Halo Pendant Necklace. 1.55 Carat sapphire with a unique green yellow blue parti colour split.
Diamond, Sapphire, Blue Sapphire, Yellow Sapphire, Green Sapphire, Platinum
$6,518Sale Price|20% Off
4.65ct Fine Royal Blue Emerald Cut Sapphire & Diamond Rectangle Platinum Pendant
By Gems and Jewels UK
Located in Birmingham, GB
4.65 Total Carat Fine Royal Blue Sapphire & Diamond Rectangle Platinum Pendant. 3.68 Carat centre sapphire with a fine deep Royal blue colour and excellent clarity, very clean gem, ...
Diamond, Emerald, Sapphire, Blue Sapphire, Platinum
33 Carat Heart Cut Aquamarine Sapphire Diamond Platinum Pendant Necklace Antique
Located in New York, NY
We are so delighted to have this extraordinary 33 Carat antique heart cut natural Aquamarine, Sapphire and Diamond Pendant Necklace in Platinum.
Aquamarine, Diamond, Sapphire, Platinum
Victorian style diamond sapphire platinum 14k rose gold cross pendant
Located in Beverly Hills, CA
Twelve vivid calibre cut sapphires add rich blue contrast, accenting the platinum setting with bold geometric precision.
Diamond, Sapphire, Gold, 14k Gold, Rose Gold, Platinum
Platinum, Diamond and Sapphire Necklace
Located in New York, NY
An elegant platinum diamond and sapphire necklace showcasing a stunning arrangement of 10 vivid "royal blue" oval-cut sapphires totaling approximately 38.57 carats, accented by an ex...
Diamond, Sapphire, Platinum
2.44 Carat Oval Sapphire and Baguette & RBC Diamond Platinum Vintage Pendant
Located in Montreal, QC
Simply Beautiful! Vintage Oval Blue Sapphire and Diamond Platinum Pendant. Centering a securely Hand set 2.44 Carat Oval Blue Sapphire.
Diamond, Sapphire, Platinum
Platinum Pendant Necklace with 2.12ct Sapphire Cabochon and Diamonds - Fei Liu
By Fei Liu
Located in Birmingham, .
This platinum pendant with sapphire cabochon and diamonds centres on a richly coloured 2.12ct sapphire chosen for its smooth polished surface and deep, luminous blue tone.
Diamond, Sapphire, Platinum
Ceylon Sapphire & Diamond Floral Quatrefoil Necklace in Platinum- GIA 5231597058
Located in Bloomington, MN
Ceylon Sapphire & Diamond Floral Quatrefoil Necklace in Platinum- GIA report number 5231597058 This necklace is crafted in platinum and features a prong-set oval Ceylon sapphire...
Diamond, Sapphire, Platinum
1.03ct Vivid Royal Blue Ceylon Sapphire & Diamond 950 Platinum Pendant Necklace
By Gems and Jewels UK
Located in Birmingham, GB
Natural Royal Blue Oval Cut Ceylon Sapphire & Diamond 950 Platinum Pendant Necklace. 1.03ct Total. 1.00 Carat sapphire with a vivid, royal blue colour and excellent clarity with onl...
Diamond, White Diamond, Sapphire, Blue Sapphire, Gold, 18k Gold, White G...
TIFFANY & Co Jazz Platinum Diamond Pink Sapphire Graduated Drop Pendant Necklace
By Tiffany & Co.
Located in Los Angeles, CA
TIFFANY & Co. Jazz Platinum Diamond Pink Sapphire Graduated Drop Pendant Necklace Metal: Platinum Chain: 16" long Weight: 4.80 grams Pendant: 22mm long Diamond: Five round brill...
Diamond, Pink Sapphire, Platinum
TIFFANY & Co Jazz Platinum Diamond Pink Sapphire Graduated Drop Pendant Necklace
By Tiffany & Co.
Located in Los Angeles, CA
TIFFANY & Co. Jazz Platinum Diamond Pink Sapphire Graduated Drop Pendant Necklace Metal: Platinum Chain: 16" long Weight: 4.80 grams Pendant: 22mm long Diamond: Five round brill...
Diamond, Pink Sapphire, Platinum
Boulder Opal and Sapphire Pendant Necklace in 18k and Platinum
Located in La Jolla, CA
Boulder Opal and Sapphire Pendant Necklace in 18k and Platinum Boulder Opal Pendant Necklace features a Multi color Boulder Opal with Play-of-Color of Pink-Orange-Green-Blue set in ...
Opal, Sapphire, Diamond, 18k Gold, White Gold, Platinum
IGI Certified Hot Pink Pear Cut Thai Sapphire & Diamond Platinum Halo Pendant
By Gems and Jewels UK
Located in Birmingham, GB
Fine Natural Pear Cut Hot Pink Sapphire And Diamond 950 Platinum Halo Pendant Necklace. 1.15ct total. 1.01ct IGI certified natural sapphire with a vivid hot pink colour and excellen...
Diamond, White Diamond, Sapphire, Pink Sapphire, Platinum
GIA 6.65 Carat Oval Sapphire Diamond Art Deco Platinum Pendant Necklace
Located in Stamford, CT
Original Art Deco 1920's sapphire and diamond pendant necklace. This classic Art Deco platinum design encompasses a GIA certified 6.65ct oval sapphire that is accented with 39 round ...
Blue Sapphire, Diamond, Sapphire, Platinum
1.57 Carat Basaltic Sapphire and 1.20 Carat Diamond Platinum Pendant Circa 1915
Located in Jesmond, Newcastle Upon Tyne
A stunning, fine and impressive antique 1.57 carat Basaltic sapphire and 1.20 carat diamond, platinum pendant - boxed; part of our diverse antique sapphire jewelry and estate jewelry...
Diamond, Sapphire, Platinum
Peter Suchy GIA Certified 3.18 Carat Sapphire Diamond Platinum Pendant Necklace
By Peter Suchy
Located in Stamford, CT
Natural GIA certified purple sapphire and diamond pendant necklace. Kite shaped 3.18 sapphire a cushion shaped accent diamond set in a platinum setting with an 18 inch platinum chain.
Diamond, Sapphire, Platinum
5.83 Carat Oval No Heat Blue Sapphire & Diamond Halo Platinum Pendant Necklace
Located in Miami, FL
GRS Certified 5.83 Carat Oval Cut No Heat Sri Lanka Origin Blue Sapphire and Round Cut Diamond Halo Platinum Pendant Necklace.
Diamond, Sapphire, Blue Sapphire, Platinum
Tiffany & Co. Platinum Diamond and Pink Sapphire Open Heart Pendant Necklace
By Tiffany & Co.
Located in Chicago, IL
Circa: 2018 Tiffany & Company Platinum Open Heart Pendant Necklace, the Heart measures 1 X 7/8 inch and is set with Round Brilliant cut Diamonds totaling 1 Carat and grading as G in ...
Diamond, Pink Sapphire, Platinum
Antique Art Deco Platinum Sapphire and Old Euro Diamond Floral Pendant Necklace
Located in Great Neck, NY
Beautiful Antique Art Deco Platinum Sapphire and Old Euro Diamond Floral Pendant Necklace.
Diamond, Sapphire, Platinum
$6,450Sale Price|24% Off
Tiffany & Co. Pink Sapphire and Diamond Large Heart Platinum Pendant Necklace
By Tiffany & Co.
Located in Tampa, FL
Large Tiffany & Co. Pink Sapphire and Diamond Heart Pendant Necklace featuring fine cut round brilliant diamonds and round cut pink sapphires set in platinum.
Diamond, Pink Sapphire, Platinum
Edwardian Sapphire & Diamond Platinum Necklace
Located in Seattle, WA
Era: Edwardian Metal Type: Platinum, 14K White Gold Setting Type: Prong, Bezel Main Gem(s): Natural Sapphire Main Gem Carat Weight: ~2.15ct Main Gem Cut/Shape: Cushion Main Gem Color...
Diamond, Sapphire, 14k Gold, Platinum
Heart Shaped Ceylon Pink Sapphire and Diamond Paved Platinum Heart Pendant
Located in Tucson, AZ
This piece is an original designed in Tucson Arizona by our master jeweler Christopher Green here at C Green Jewelers. The three dimensional heart is pave set with 65 round brillia...
Diamond, Pink Sapphire, Platinum
Tiffany Pink Sapphire and Diamond Platinum Heart Pendant Necklace
By Tiffany & Co.
Located in Guangzhou, CN
The classic heart-shaped motif is meticulously set with alternating round brilliant diamonds and shimmering pink sapphires. The diamonds have a combined weight of 1.00 carat, while t...
Platinum
Antique Belle Époque Platinum "Petit Point" Rose Cut Diamond Sapphire Pendant
Located in New York, NY
An antique rosecut diamond sapphire floral pendant exquisitely made by hand with platinum to resemble a framed needle point.
Diamond, Sapphire, Platinum
Art Deco 3.83 Carat Madagascar Sapphire and 0.90 Carat Diamond Platinum Pendant
Located in Jesmond, Newcastle Upon Tyne
A stunning, fine and impressive Art Deco 3.83 carat Madagascar sapphire and 0.90 carat diamond, platinum pendant; part of our Art Deco sapphire jewelry collection.
Diamond, Sapphire, Platinum, White Gold
Vintage Art Deco 1.50 Carat Sapphire and Diamond Platinum Estate Fine Pendant
Located in Montreal, QC
Elegant Finely Detailed Round OEC Diamond Platinum Vintage Art Deco Pendant. Centering a securely Hand set 1.50 Carat Sapphire.
Diamond, Sapphire, Platinum
Art Deco 1.69 Carat Sapphire and Diamond Platinum Vintage Pendant Necklace
Located in Montreal, QC
Elegant Finely Detailed Round Blue Sapphire and Diamond Platinum Vintage Art Deco Navette Pendant Necklace.
Diamond, Sapphire, 14k Gold, White Gold, Platinum
Antique Sapphire and Diamond Pendant
Located in New York, NY
Antique Sapphire and Diamond Pendant in Platinum This resplendent antique pendant is a testament to exquisite craftsmanship and refined elegance, featuring a captivating pear-shaped...
Diamond, Sapphire, Platinum
Edwardian 850 Platinum 11.50 Carat SI Sapphire 2.00 Carat Diamond Oval Pendant
Located in Vilnius, Vilniaus apskr.
This is an Edwardian oval cluster pendant crafted in 850 platinum. The bail is made of 18K gold.
Diamond, Sapphire, Platinum
New Platinum 2.77ctw GIA Oval Royal Blue Sapphire Diamond Halo Pendant Necklace
Located in Montclair, NJ
This mesmerizing blue sapphire is surrounded by a halo of fine quality diamonds that add a fancy and elegant touch to this chic piece that's entirely crafted in solid platinum includ...
Diamond, Blue Sapphire, Platinum
1.18 Carat Natural Royal BlueSapphire & Diamond Pendant Necklace Set in Platinum
Located in Tokyo, JP
A beautiful pendant necklace 1.18 Carat Natural Sapphire and 0.55 Carats of Diamond Accents made in Platinum.
Diamond, Sapphire, Blue Sapphire, Platinum
1.34 Carat Natural Royal BlueSapphire & Diamond Pendant Necklace Set in Platinum
Located in Tokyo, JP
A beautiful pendant necklace 1.34 Carat Natural Royal Blue Sapphire and 0.45 Carats of Diamond Accents made in Platinum.
Diamond, Sapphire, Blue Sapphire, Platinum
CARTIER Art-Deco 1938 Certified Necklace In Platinum With Diamonds & Sapphires
By Cartier
Located in Miami, FL
An art deco necklace with sapphires designed by Cartier. This is a beautiful and very rare vintage necklace created in Paris France by the jewelry house of Cartier, between the 1935...
Diamond, Sapphire, White Diamond, Blue Sapphire, Platinum
Belle Epoque French .95 Ct Natural Sapphire 5.0 Ct Diamond Platinum Pendant
Located in Napoli, IT
The Belle Epoque This magnificent art work of the Belle Epoque Period is French origin Platinum crafted – it dates 1900 ca Magnificent open work is rendered in a rich set of the fine...
Diamond, Sapphire, Platinum
GIA Sapphire and Diamond Pendant Necklace
Located in Beverly Hills, CA
GIA-certified 5.12-carat Brownish Pink sapphire extraordinary platinum sapphire and diamond pendant necklace.
Diamond, Sapphire, Pink Sapphire, Platinum
GIA Certified Diamond and Natural Sapphire in Platinum 950 Elegant Necklace
Located in New York, NY
GIA Certified Diamond and Blue Sapphire Necklace Metal Type: Platinum 950 1: Natural Diamond Weight: Side 3.23 Ct / Center 1.66 Ct Diamond Clarity Grade: Side VVS - VS / Center I1 C...
Diamond, Blue Sapphire, Platinum
Edwardian Sapphire Diamond Platinum Pendant or Brooch
Located in New York, NY
Crafted in platinum featuring a very fine rectangular cushion cut sapphire and an old european cut diamond surrounded by old european cuts, swiss cuts and single cuts. The chain is ...
Antique Fairy Angel Pendant Rose Cut Diamond Sapphire Platinum Mother of Pearl
Located in New York, NY
Indulge in an extraordinary Sapphire, Rose Cut Diamond, Platinum Pendant with the image of a winged Fairy or Angel is a Museum Quality Jewel.
Diamond, Pearl, Sapphire, Gold, 18k Gold, Platinum
Edwardian 2 carat sapphire diamond 18k white gold and platinum pendant necklace
Located in Beverly Hills, CA
This graceful Edwardian necklace showcases a vibrant 2.00 carat lozenge cut sapphire framed by a halo of 56 sparkling single cut diamonds. Crafted in 18k white gold and platinum, it ...
Diamond, Sapphire, Gold, 18k Gold, White Gold, Platinum
Vintage 2.90ct Ceylon Sapphire Platinum Cross Pendant, Circa 1950
Located in Jesmond, Newcastle Upon Tyne
A stunning, fine and impressive vintage 2.90 carat sapphire and platinum cross pendant; part of our diverse sapphire jewellery collection.
Sapphire, Platinum
Tiffany & Co. Large Pink Sapphire and Diamond Open Heart Necklace in Platinum
By Tiffany & Co.
Located in Scottsdale, AZ
Metal: Platinum Natural Diamonds: 1.00 ctw Natural Sapphires: 1.25 ctw Weight: 7.40 Chain Length: 16" Pendant Length: 21.99 mm Width: 24.96 Height: 4.32 mm Stamped: Tiffany & Co ...
Diamond, Pink Sapphire, Platinum
$406Sale Price / item|22% Off
AENEA Palladium Platinum Blue Sapphires Heart Charm Pendant
By AENEA Jewellery
Located in Salzburg, Salzburg
This wonderful handcrafted charm heart is the perfect present four your beloved ones. The blue sapphires are going from light to dark, set in palladium 950 combined with a platinum 9...
Blue Sapphire, Palladium, Platinum
Burma No Heat Sapphire Diamond Pendant
Located in New York, NY
A beautiful natural, no heat pear-shape sapphire set with three round and three pear-shape rose cut diamonds, set in Platinum. The sapphire weighs 12.77 carats with a total diamond w...
Blue Sapphire, Diamond, Platinum
Contemporary Pear-Shaped Sapphire and Diamond Pendant
Located in London, GB
A vibrant blue sapphire is surrounded by diamonds in this contemporary pendant.
Diamond, Sapphire, Gold, 18k Gold, Platinum
0.21 Carat Brazilian Alexandrite and Diamond Pendant Made in Platinum
Located in Tokyo, JP
A gorgeous pendant featuring a 0.21 Carats Natural Brazilian Alexandrite and 0.48 Carats of Diamond Accents made in Platinum.
Alexandrite, Diamond, Platinum
Harry Winston 32.63 cts. Ceylon Sapphire Diamond Platinum Necklace
By Harry Winston
Located in New York, NY
Carat Weight: Sapphire 5.30 cts. center stone Color/Clarity: Ceylon Certifications: 7 SSEF & HW Certificate Creator: Harry Winston Metal: Platinum Weight: 93.28 grams Condition...
Diamond, Sapphire, Platinum
2.69vCarat Natural Colombian Emerald and Diamond Pendant Made in Platinum
Located in Tokyo, JP
We specialize in Colored Stone Jewelry and offer a wide range of products including rings, pendants, bracelets and earrings. Our Jewelry comprises of exquisite stones such as Eme...
Diamond, Emerald, Platinum
Australian Opal Pink Sapphire Diamond Gold Pendant
Located in Beverly Hills, CA
The luscious Australian opal is accented by 0.51 carats of princess cut pink sapphires and 0.34 carats of diamonds channel set in vertically linear bars of 18K yellow gold.
Diamond, Opal, Pink Sapphire, 18k Gold, Yellow Gold, Platinum
15.12 Carat Tanzanite Diamond Platinum Pendant
Located in Beverly Hills, CA
A large 15.12 carat gemmy tanzanite takes center stage of this platinum made pendant which can also be worn as a brooch.
Diamond, Tanzanite, Platinum
1.80 Carat Sapphire GIA and Diamond Pendant Necklace
Located in Montreal, QC
Surrounded by Round Brilliant Cut Diamonds, approx. 0.98tcw. Double Halo Platinum Pendant Necklace.
Diamond, Sapphire, Platinum
EDWARDIAN 1900 Enameled Pendant Brooch In 18Kt Platinum Diamonds & Aquamarine
Located in Miami, FL
Diamonds often had an Old Mine or European cut and sapphires were a popular choice for a pop of color.
Aquamarine, Diamond, White Diamond, Gold, Platinum, Enamel, 18k Gold, Ye...
20.95 Carat Natural Peridot and Diamond Pendant Necklace Made in Platinum
Located in Tokyo, JP
A beautiful pendant necklace featuring a Natural 20.95 Carat Peridot and 2.08 carats Diamond Accents set in Platinum.
Diamond, Peridot, Platinum
Art Deco diamond ruby star sapphire platinum charm necklace
Located in Beverly Hills, CA
This captivating Art Deco charm necklace showcases a beautifully intricate composition of gemstones, centered around 29 single and baguette cut diamonds totaling approximately 1.00 c...
Diamond, Pearl, Ruby, Sapphire, Platinum
4.09 Carat Natural 'AAA' Tanzanite and Diamond Pendant Made in Platinum
Located in Tokyo, JP
A beautiful pendant featuring a 4.09 Carat Natural Tanzanite and 0.66 Carat Diamonds Made in Platinum.
Diamond, Tanzanite, Platinum
Diamond Moonstone Sapphire and Platinum Very Long Opera Chain Necklace
Located in New York, NY
Diamond Moonstone Sapphire and Platinum Very Long Opera Chain Necklace Signed by Fred Leighton. Approx. 17 to 20 carats diamonds, 245 carats cabochon moonstone, and 45 carats sapphi...
Diamond, Moonstone, Sapphire, Platinum
Art Deco Sapphire Pendant Necklace 2.65ct Platinum Original 1920's-1930's
Located in Dearborn, MI
Genuine Original Antique from the 1920's-1930's Art Deco 2.65ct Sapphire Diamond Pendant Necklace Antique Platinum Features a Genuine Natural Blue Pear Cut 1.65ct Sapphire Gemston...
Sapphire, Platinum
2.94 Carat Natural 'AAA' Tanzanite and Diamond Pendant made in Platinum
Located in Tokyo, JP
A beautiful pendant featuring a 2.94 Carat Natural Tanzanite and 0.81 Carats Diamond Accents set in Platinum.
Diamond, Tanzanite, Platinum
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.