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Sapphire And Marquise Diamonds

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Round and Marquise-Shape Sapphire Diamond 18 Karat White Gold Bracelet Bangle
By Butani
Located in Hong Kong, Kowloon
carats of round brilliant cut diamonds. Perfectly complements the Butani Marquise Sapphire Round Diamond
Category

2010s Hong Kong Contemporary Bangles

Materials

Diamond, White Diamond, Sapphire, Blue Sapphire, 18k Gold, White Gold

0.75 Carat Blue Marquise Sapphire and Diamond 18 Carat White Gold Ring
Located in Hamilton, AU
features a beautiful natural Australian blue marquise 0.75 carat sapphire that is flanked by four beautiful
Category

21st Century and Contemporary Unknown Contemporary Cluster Rings

Materials

Diamond, Sapphire, Blue Sapphire, Gold, 18k Gold, White Gold

10.33 Carat Marquise and Round Sapphire Diamond 18 Karat Gold Bangle Bracelet
By Butani
Located in Hong Kong, Kowloon
carats of round brilliant cut diamonds. Perfectly complements the Butani Marquise Sapphire Round Diamond
Category

2010s Hong Kong Contemporary Bangles

Materials

Diamond, White Diamond, Sapphire, Blue Sapphire, 18k Gold, White Gold, Gold

18 Karat Yellow Gold Ring with Blue Sapphires and 1.03 Carat Marquise Diamond
By Picchiotti
Located in Chicago, IL
weighing .90cts, and one prong set marquise diamond weighing 1.03cts, I color, SI2 clarity Finger size 6
Category

Vintage 1980s Italian Contemporary Engagement Rings

Materials

Diamond, Blue Sapphire, 18k Gold

1.88 Carat Marquise Sapphire and 0.76 Carat Diamond 18 Carat White Gold Ring
Located in Hamilton, AU
marquise natural sapphire of a deep blue colour complimented with an alluring border of sparkling white
Category

21st Century and Contemporary Australian Contemporary Engagement Rings

Materials

Diamond, Sapphire, 18k Gold, White Gold

18 Karat White Gold Marquise Pink Sapphire and Diamonds Amore Bangle by Niquesa
By Niquesa
Located in London, GB
A perpetual circle of vibrant marquise cut pink sapphires poised between two delicate rows of
Category

2010s Italian Contemporary Bangles

Materials

Diamond, White Diamond, Pink Sapphire, Gold, 18k Gold, White Gold

Antique, Victorian, 14 Carat Gold, Sapphire and Diamond Marquise Engagement Ring
Located in Rochford, Essex
Victorian sapphire and diamond marquise cluster ring, circa 1890. Set with old cut diamonds in an
Category

Antique Late 19th Century Austrian Engagement Rings

Materials

Diamond, Sapphire, Blue Sapphire, 14k Gold, Yellow Gold

Sri Lankan Oval Sapphire and Marquise Cut Diamonds GRS Certified Ring
Located in Knightsbridge, GB
NATURAL SRI-LANKA SAPPHIRE AND DIAMOND RING - 18.92CT Set in 18Kt White Gold Total natural
Category

2010s British Modern More Rings

Materials

White Diamond, Blue Sapphire, 18k Gold

Marquise Sapphire Round Diamond 18 Karat White Gold Eternity Band Ring
By Butani
Located in Hong Kong, Kowloon
contact seller. Composition: 18K White Gold 18 Marquise Sapphires: 3.69 carats 90 Round Diamonds: 1.17
Category

2010s Hong Kong Contemporary Band Rings

Materials

Diamond, White Diamond, Sapphire, Blue Sapphire, 18k Gold, White Gold

18 Karat White Gold Sapphire and Diamond Marquise Navette Engagement Ring
Located in Lancashire, Oldham
A striking vintage 18 karat white gold sapphire and diamond marquise diamond ring that has been
Category

Mid-20th Century British Victorian Cluster Rings

Materials

Diamond, White Diamond, Sapphire, 18k Gold, White Gold

Sapphire and Diamond Twisted Ring
By MIIORI
Located in New York, NY
centre of the piece. Each flower head of cluster design set with pear and marquise shaped blue sapphires
Category

2010s Thai Fashion Rings

Materials

White Diamond, Blue Sapphire, 18k Gold

Ornate Sapphire and Diamond Cocktail Ring
Located in Miami, FL
Masterfully crafted platinum ring containing a prong set natural sapphire center stone with pear
Category

21st Century and Contemporary American Cocktail Rings

Materials

Diamond, Sapphire, Platinum

18 carat sapphires and diamonds yellow gold ring
Located in Monte-Carlo, MC
18 carat yellow gold ring designed with 3 marquise cut sapphire weighing 0.50 carat in total and 46
Category

2010s Fashion Rings

Materials

Diamond, Sapphire

Marquis Sapphire and Diamond Pendant
Located in DALLAS, TX
Marquis Sapphire and Diamond 18k White Gold Pendant. 18" silver chain included.
Category

Early 20th Century Art Deco Pendant Necklaces

Materials

Diamond, Sapphire, 18k Gold, White Gold, Sterling Silver

Oscar Heyman Art Deco Sapphire and Diamond Bracelet
By Oscar Heyman
Located in San Francisco, CA
center section is punctuated three times by marquise diamonds and is bordered on each side by the finest
Category

Vintage 1920s American Art Deco Link Bracelets

Materials

Diamond, Sapphire, Platinum

Marquise cut sapphires and round brilliant diamonds bracelet set in white gold.
Located in Surfside, FL
Marquise cut sapphires and round brilliant diamonds bracelet set in 18k white gold. Marquise
Category

20th Century Bangles

Materials

White Gold

Brilliant, 3.5 Carat Ladies Sapphire and Diamond Jeweled Ring
Located in Aliso Viejo, CA
round brilliant diamond set in a offset four prong setting. There are two Marquise cut sapphires that
Category

Vintage 1980s American Modern Cocktail Rings

Materials

Diamond, White Diamond, Sapphire, Blue Sapphire, 14k Gold, Yellow Gold

Diamond and Sapphire Earrings with Interchangeable Stones in 18kt Gold
By Lester Lampert
Located in Chicago, IL
blue or yellow sapphires to create completely different looks. The stones are marquise cut and pear
Category

2010s American Contemporary More Earrings

Materials

Diamond, Blue Sapphire, Yellow Sapphire, 18k Gold

High Karat Gold Sapphire Diamond Bracelet
Located in Agoura Hills, CA
Crafted in 20K gold, the bracelet features a series of 60 marquise cut sapphires and diamond set
Category

Late 20th Century Link Bracelets

Materials

Diamond, Sapphire, Blue Sapphire, Yellow Gold

Convertible Bracelet Sapphires and Diamonds in White Gold 18 Karat
Located in PARIS, FR
central motif composed of seven sapphires in marquise cut and seven diamonds in brilliant cut. The whole
Category

Vintage 1970s French Post-War More Bracelets

Materials

Diamond, Sapphire, 18k Gold, White Gold

Retro 4.50 Carat Sapphires and Diamonds White Gold Cluster Cocktail Ring
Located in Paris, FR
Sapphire and diamond starburst cocktail retro ring. Round cut sapphire with sprays of marquise
Category

Vintage 1980s American Retro Cluster Rings

Materials

Diamond, Blue Sapphire, 14k Gold

Contemporary 1.25ct Sapphire and Diamond Drop Necklace set in 14ct White Gold
Located in Yorkshire, West Yorkshire
. The necklace features a Sapphire and Diamond cross shaped drop. A detailed and decorative necklace
Category

21st Century and Contemporary Unknown Contemporary Drop Necklaces

Materials

Diamond, Sapphire, White Gold

Diamond and Sapphire Vintage Ring in 18 Karat White Gold
Located in PARIS, FR
Diamond and sapphire vintage ring in 18 karat white gold. This ring is set with three marquise cut
Category

Vintage 1970s French Post-War More Rings

Materials

Diamond, Sapphire, 18k Gold, White Gold

Radiant 14K Yellow Gold Earrings with Multi-Colored Sapphire and Diamonds
Located in Holtsville, NY
, featuring an exquisite array of 2.39 carats of marquise modified brilliant sapphires in a mesmerizing blend
Category

2010s American Artist Stud Earrings

Materials

Diamond, Sapphire, 14k Gold, Yellow Gold

South Sea Pearl Blue Sapphire and Diamond Platinum Cocktail Ring
Located in Boca Raton, FL
YOU HAPPY! Platinum Ring with white South Sea Pearl Center surrounded by Blue Sapphires and Diamonds
Category

21st Century and Contemporary American Cocktail Rings

Materials

Diamond, White Diamond, South Sea Pearl, Sapphire, Blue Sapphire, Platinum

Circa 1990s 14 Carat White Gold Deep Blue Sapphire and Diamond Split Shank Ring
Located in Hamilton, AU
diamond encrusted marquise shape split setting holding a shimmering marquise cut deep blue sapphire. This
Category

20th Century Modern Cluster Rings

Materials

Diamond, Blue Sapphire, Gold, 18k Gold, White Gold

Victorian 18ct Gold Sapphire and Diamond Navette Cluster Ring
Located in Glasgow, GB
A late Victorian 18ct yellow gold sapphire and diamond Navette (Marquise) cluster ring. The ring is
Category

Antique 1890s British Victorian Cluster Rings

Materials

Diamond, Sapphire, Yellow Gold, Gold, 18k Gold

Luxury 14K Sapphire Diamond Cocktail Ring, 3.45ctw, Size 7 - Statement Jewelry
Located in Holtsville, NY
Marquise Multi Sapphire and Diamond Ring by Jeweltique and let your jewelry tell a story as colorful and
Category

2010s Indian Cocktail Rings

Materials

Diamond, Sapphire, 14k Gold, Yellow Gold

10k Yellow Gold Sapphire Cocktail Ring with Diamond Accents
Located in Endwell, NY
This estate found Sapphire ring features 3 marquise cut sapphires with accent diamonds on the
Category

Late 20th Century North American Contemporary Cocktail Rings

Materials

Diamond, Sapphire, 10k Gold, Yellow Gold

Antique Edwardian Sapphire Diamond Snake Earrings
Located in Sale, Cheshire
Edwardian era, circa 1910, set with marquise cut sapphires and diamonds - the stones rest in beautifully
Category

Early 20th Century English Edwardian Dangle Earrings

Materials

White Diamond, Blue Sapphire, 18k Gold, Platinum

GIA Certified 3.51 Carat Blue Sapphire Ring with Diamonds and White Gold
Located in Boca Raton, FL
a state of the art GIA Certified Blue Sapphire center with round and marquise cut diamonds GIA
Category

21st Century and Contemporary American Contemporary Cocktail Rings

Materials

White Diamond, Blue Sapphire, Diamond, 18k Gold, White Gold

Art Deco Opposing Minarets Diamond Sapphire Ring
Located in Lakewood, NJ
Brilliant and posh Art Deco period three-stone old euro diamond and platinum ring with sapphire
Category

Early 20th Century American Art Deco Three-Stone Rings

Materials

Diamond, Sapphire, Platinum

8.5mm Cultured Pearl Necklace with Sapphire Diamond Clasp
Located in London, GB
Single row cultured pearl 8-8.5mm necklace to an Edwardian sapphire and diamond marquise shaped
Category

20th Century British Edwardian Rope Necklaces

Materials

Sapphire, 18k Gold

Luxurious 14K Sapphire Diamond Cocktail Ring Size 6.5 - Elegant Jewelry Design
Located in Holtsville, NY
Symphony Marquise Multi Sapphire and Diamond Ring is a testament to the beauty that surrounds us. Elevate
Category

2010s Indian Cocktail Rings

Materials

Diamond, Sapphire, 14k Gold, Yellow Gold

Marquise Cut Sapphire and Diamond Cluster Earrings in 18 Carat White Gold
Located in Yorkshire, West Yorkshire
These lovely earrings feature two Marquise Cut Sapphires weighing approximately 1.00ct combined
Category

21st Century and Contemporary British Contemporary Stud Earrings

Materials

Diamond, Sapphire, Blue Sapphire, 18k Gold, White Gold

Marquise Sapphire and 0.80 Carat Diamond 18 Carat Gold Vintage Bow Cluster Ring
Located in Hamilton, AU
embellished with 0.80 carats of round brilliant cut diamonds encompassing a marquise natural blue sapphire. We
Category

21st Century and Contemporary Unknown Modern Cluster Rings

Materials

Diamond, Sapphire, 18k Gold, Gold, Yellow Gold

Late Victorian Sapphire and Diamond Marquise Ring in 18ct Yellow Gold
Located in Yorkshire, West Yorkshire
this ring sits 3 round Cut Sapphire in a row with Diamonds in-between, in an 18ct Yellow Gold claw
Category

Antique 1880s British Late Victorian Cluster Rings

Materials

Diamond, Sapphire, Yellow Gold

Antique Late Victorian Sapphire and Diamond Marquise Ring in 18ct Trio Gold
Located in Yorkshire, West Yorkshire
Sapphires are 22 Old European Cut Diamonds of different sizes creating a Marquise shaped cluster with
Category

Antique 1880s British Late Victorian Engagement Rings

Materials

Diamond, Sapphire, Gold, 18k Gold, Rose Gold, White Gold, Yellow Gold

5.05 Carat Yellow Sapphire and Diamond Ring
Located in Vail, CO
by two pear-shaped and four marquise-shaped diamonds altogether weighing approximately 1.04 total
Category

20th Century Cluster Rings

Materials

Diamond, White Diamond, Sapphire, Yellow Sapphire, 18k Gold, Yellow Gold...

10k Yellow Gold Sapphire and Diamond Cocktail Ring
Located in Endwell, NY
This estate found ring features seven marquise cut sapphires and ten small round cut diamonds in a
Category

20th Century North American Contemporary Cocktail Rings

Materials

Diamond, Sapphire, 10k Gold, Yellow Gold

Effy 14 Karat White Gold Diamond and Sapphire Ring
By Effy
Located in New York, NY
, round, pear and marquise - forming a mosaic together. Surrounded by a twist of round diamonds to finish
Category

2010s American Contemporary Fashion Rings

Materials

Sapphire, 14k Gold, White Gold

Striking Mid Century Circa 1950 Sapphire Diamond and 18KT White Gold Cocktail Ri
Located in Lombard, IL
Striking Mid Century Circa 1950 sapphire diamond and 18kt white gold dome cocktail ring set with
Category

Vintage 1950s Unknown Post-War Cocktail Rings

Materials

Diamond, Sapphire, White Gold

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Sapphire And Marquise Diamonds For Sale on 1stDibs

There is a broad range of sapphire and marquise diamonds for sale on 1stDibs. All of the items for sale were constructed with extraordinary care, often using Gold, 18k Gold and White Gold. Our selection of items includes 113 vintage examples as well as 130 contemporary versions. Our inventory is broad and distinctive, with accessories on offer that were made as long ago as the 19th Century to those produced as recently as the 21st Century. There are many different pieces in our collection of sapphire and marquise diamonds to choose from, but Contemporary and Modern sapphire and marquise diamonds are of considerable interest. Niquesa, Georgios Collections Inc and LB Exclusive each produced beautiful examples of these items that are worth considering. There are many marquise cut, oval cut and round cut sapphire and marquise diamonds for sale. There aren’t many items for men in our collection of sapphire and marquise diamonds, as most of the options available are for women.

How Much are Sapphire And Marquise Diamonds?

On average, sapphire and marquise diamonds at 1stDibs sell for $3,975, while they’re typically $280 on the low end and $450,000 for the highest priced versions of this item.

Why Gold Shines in Jewelry Craftsmanship

Gold is the feel-good metal, the serotonin of jewelry. Wear vintage and antique gold necklaces, watches, gold bracelets or gold rings and you feel happy, you feel dressed, you feel, well, yourself. 

Gold, especially yellow gold, with its rich patina and ancient pedigree going back thousands of years, is the steady standby, the well-mannered metal of choice. Any discussion of this lustrous metal comes down to a basic truth: Gold is elementary, my dear. Gold jewelry that couples the mystique of the metal with superb design and craftsmanship achieves the status of an enduring classic. Many luxury houses have given us some of our most treasured and lasting examples of gold jewelry over the years.

Since its founding, in 1837, Tiffany Co. has built its reputation on its company jewelry as well as its coterie of boutique designers, which has included Jean Schlumberger, Donald Claflin, Angela Cummings and Elsa Peretti. There are numerous gold Tiffany classics worth citing. Some are accented with gemstones, but all stand out for their design and the workmanship displayed.

For the woman who prefers a minimalist look, the Tiffany Co. twist bangle (thin, slightly ovoid) is stylishly simple. For Cummings devotees, signature pieces feature hard stone inlay, such as her pairs of gold ear clips inlaid with black jade (a play on the classic Chanel black and tan), or bangles whose design recalls ocean waves, with undulating lines of lapis lazuli and mother-of-pearl. And just about any design by the great Jean Schlumberger is by definition a classic.

Even had he eschewed stones and diamonds, Southern-born David Webb would be hailed for the vast arsenal of heavy gold jewelry he designed. Gold, usually hammered or textured in some manner, defines great David Webb jewelry. The self-taught jeweler made very au courant pieces while drawing inspiration from ancient and out-of-the-way sources — East meets West in the commanding gold necklaces made by Webb in the early 1970s. The same could be said for his endlessly varied gold cuffs.

In Europe, many houses have given us gold jewelry that sets the highest standard for excellence, pieces that were highly sought after when they were made and continue to be so. 

Numerous designs from Cartier are homages to gold. There are the classic Trinity rings, necklaces and bracelets — trifectas of yellow, white and rose gold. As a testament to the power of love, consider the endurance of the Cartier Love bracelet.

Aldo Cipullo, Cartier’s top in-house designer from the late 1960s into the early ’70s, made history in 1969 with the Love bracelet. Cipullo frequently said that the Love bracelet was born of a sleepless night contemplating a love affair gone wrong and his realization that “the only remnants he possessed of the romance were memories.” He distilled the urge to keep a loved one close into a slim 18-karat gold bangle. 

BVLGARI and its coin jewelry, gemme nummarie, hit the jackpot when the line launched in the 1960s. The line has been perennially popular. BVLGARI coin jewelry features ancient Greek and Roman coins embedded in striking gold mounts, usually hung on thick link necklaces of varying lengths. In the 1970s, BVLGARI introduced the Tubogas line, most often made in yellow gold. The Tubogas watches are classics, and then there is the Serpenti, the house's outstanding snake-themed watches and bracelets.

A collection called Monete that incorporated the gold coins is one of several iconic BVLGARI lines that debuted in the 1970s and ’80s, catering to a new generation of empowered women. Just as designers like Halston and Yves Saint Laurent were popularizing fuss-free ready-to-wear fashion for women on the go, BVLGARI offered jewels to be lived in

Since Van Cleef Arpels opened its Place Vendôme doors in 1906, collection after collection of jewelry classics have enchanted the public. As predominantly expressed in a honeycomb of gold, there is the Ludo watch and accessories, circa the 1920s, and the golden Zip necklace, 1951, whose ingenious transformation of the traditional zipper was originally proposed by the Duchess of Windsor. Van Cleef's Alhambra, with its Moroccan motif, was introduced in 1968 and from the start its popularity pivoted on royalty and celebrity status. It remains one of VCA’s most popular and collected styles.

Mention must be made of Buccellati, whose name is synonymous with gold so finely spun that it suggests tapestry. The house’s many gold bracelets, typically embellished with a few or many diamonds, signified taste and distinction and are always in favor on the secondary market. Other important mid-20th-century houses known for their gold-themed jewelry include Hermès and Ilias Lalaounis.

Find a stunning collection of vintage and antique gold jewelry on 1stDibs.

The Legacy of Diamond in Jewelry Design

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 ringsvintage engagement rings or Art Deco engagement rings

Shop antique and vintage diamond rings, diamond necklaces and other extraordinary diamond jewelry on 1stDibs.  

Questions About Sapphire And Marquise Diamonds
  • 1stDibs ExpertJune 15, 2023
    What a marquise diamond symbolizes is largely a matter of individual interpretation. Some people associate the elongated shape with joy and happiness, while others believe it is a symbol of love. On 1stDibs, shop a collection of marquise-cut diamond jewelry on 1stDibs.
  • 1stDibs ExpertFebruary 17, 2023
    Whether marquise diamonds are good is largely a matter of personal preference. However, many people appreciate the shape of the cut or feel that it looks flattering on their hands. Also known as the navette cut (meaning “little boat” or “sailboat” in French), marquise-cut stones are easy to identify due to their elliptical shape that is tapered on both ends. Stones with a marquise cut are considered modified brilliant because they have 58 facets. On 1stDibs, find a variety of diamond jewelry from some of the world's top sellers.
  • 1stDibs ExpertFebruary 13, 2023
    Marquise cut diamonds can be less expensive per carat compared to other popular diamond shapes. The 4Cs, the grading system that was established by the Gemological Institute of America (GIA) in the 1950s, are the guidelines that determine how marquise diamonds are graded. The price of marquise cut diamonds will be affected by market conditions as well as the aforementioned 4Cs, which are carat weight, color, clarity, and cut quality. Find a collection of diamond jewelry on 1stDibs.
  • 1stDibs ExpertOctober 19, 2021
    A marquise-cut diamond looks great in a variety of settings, but you should choose one that protects the center stone. Some of the top marquise diamond ring settings are bezel, prong and halo. Find a variety of marquise-cut diamond rings on 1stDibs today.
  • 1stDibs ExpertFebruary 22, 2021
    Unless the sapphire is much bigger, a diamond is typically more expensive because it's rarer and harder.
  • 1stDibs ExpertApril 5, 2022
    No, sapphire diamonds are not real diamonds. They are actually white or colorless sapphire gemstones. Diamonds are pure carbon, while sapphires are corundum minerals that contain aluminum oxide and trace elements. On 1stDibs, find a large selection of expertly vetted diamond gemstone jewelry.
  • 1stDibs ExpertOctober 19, 2021
    A white sapphire is any gem-quality corundum that is either white or colorless. With a few exceptions, a white sapphire looks remarkably similar to a diamond in terms of cut and color. Diamonds will always appear brighter and have more colorful flashes than sapphires. Both diamonds and sapphires are hard and will resist everyday scratches. On 1stDibs, find antique and vintage diamond jewelry and white sapphire jewelry today.
  • 1stDibs ExpertAugust 26, 2024
    The difference between a black diamond and a black sapphire is that the two are different gemstones. A black diamond consists of carbon converted to a crystalline solid through changes driven by pressure and temperature. A black sapphire is a type of corundum, an aluminum oxide mineral. Generally, black diamonds are harder, rarer and more expensive than black sapphires. On 1stDibs, shop an assortment of black diamond and sapphire jewelry.
  • 1stDibs ExpertDecember 4, 2023
    Yes, white sapphires look like diamonds. However, their appearances aren't completely identical. Although both are white or clear gemstones, the sparkle of a white sapphire will usually appear silvery or gray in color, while diamonds have a rainbow-colored sparkle due to how light interacts with them. Shop a wide range of white sapphire and diamond jewelry on 1stDibs.