Skip to main content

Bezel Set Sapphire Ring

10
to
227
1,863
360
505
389
259
96
72
60
50
35
10
8
7
7
2
2
1
16
61
1,068
1,177
66
75
124
129
40
39
35
43
94
75
3
62
48
35
32
32
1,400
858
93
2,342
9
1,660
1,044
722
468
390
2,028
1,567
822
311
164
21
4
1
430
351
149
137
131
to
Sort By
Natural Sapphire Ring, 6.02 Carat Emerald Cut GIA Certified
Located in Tampa, FL
. Stunning bezel set sapphire ring with incredible rich color created by this sapphires even tone and
Category

2010s Sri Lankan Engagement Rings

Materials

Diamond, Sapphire, Blue Sapphire, 18k Gold, Yellow Gold, Platinum

Art Deco Diamond Sapphire Platinum Bezel Set Ring
Located in Beverly Hills, CA
One Art Deco Diamond Sapphire Platinum Bezel Set Ring. Featuring one old European cut diamond
Category

Vintage 1930s Art Deco Engagement Rings

Materials

Diamond, Sapphire, Blue Sapphire, Platinum

14k Yellow Gold Oval Sapphire Bezel Set Ring
Located in Towson, MD
sides of the ring. At the center of this ring is an approximately 1ct dark blue sapphire set in a bezel
Category

Vintage 1980s Fashion Rings

Materials

Sapphire, 14k Gold, Yellow Gold

Sapphire Eternity Band, White Gold Bezel Set Infinity Band, Sapphire Ring
By Five Star Jewelry
Located in Austin, TX
The details for this beautiful ring are listed below: Metal Quality: 14 kt Yellow Gold Gemstone
Category

21st Century and Contemporary American Contemporary Band Rings

Materials

Sapphire, White Gold, 14k Gold

.54 Carat Blue Sapphire Bezel Set White Gold Engagement Ring
Located in Stamford, CT
Sapphire white gold engagement ring. Round cut bezel set sapphire in a 14k white gold solitaire
Category

21st Century and Contemporary Engagement Rings

Materials

Sapphire, Blue Sapphire, Gold, 14k Gold, White Gold

18 Karat White Gold Sapphire and Bezel Set Diamond Ring
Located in Scottsdale, AZ
Clarity: SI2 Sapphire: 1 oval cut = 2.27ct Dimensions: ring top measures 12.5mm wide Ring Size: 6.25
Category

21st Century and Contemporary Fashion Rings

Materials

Diamond, Sapphire, 18k Gold, White Gold

14k Yellow Gold Sapphire and Diamond Bezel Set Eternity Ring
By Gregory Mikaelian & Sons, Inc.
Located in Los Angeles, CA
Beautiful sapphire and diamond ring. Specifications: main stone: 8 Marquise Sapphires 1.78 cts
Category

21st Century and Contemporary American Contemporary Fashion Rings

Materials

Diamond, Sapphire, 14k Gold, Yellow Gold

18 Karat Yellow Gold Bezel Set Diamond and Sapphire Ring
Located in Scottsdale, AZ
Clarity: VS1 Dimensions: ring top measures 25mm wide Ring Size: 14.5 (please allow two extra shipping days
Category

21st Century and Contemporary Fashion Rings

Materials

Diamond, Sapphire, 18k Gold, Yellow Gold

Faye Kim Platinum Ceylon Sapphire Bezel Ring
By Faye Kim
Located in Westport, CT
A beautiful, vivid shade of blue, this Ceylon Blue Sapphire round bezel ring is bezel set in
Category

2010s American Contemporary Solitaire Rings

Materials

Sapphire, Platinum

Faye Kim Platinum Ceylon Sapphire Bezel Ring
By Faye Kim
Located in Westport, CT
A beautiful, vivid shade of blue, this Ceylon Blue Sapphire ring is bezel set in platinum with a
Category

2010s American Contemporary Solitaire Rings

Materials

Sapphire, Platinum

Blue Sapphire Bezel Band in 14K White Gold Handmade Bezel Ring with Sapphires
By Five Star Jewelry
Located in Austin, TX
sapphire gemstones set in handmade bezel setting. The band has a unique, organic design that looks amazing
Category

2010s American Artisan Band Rings

Materials

Blue Sapphire, White Gold

NEW Platinum GIA 2.04ct Bezel Set Greenish Blue Sapphire Sideway Solitaire Ring
Located in Montclair, NJ
--Stone(s):-- (1) Natural Genuine Sapphire - Cushion Brilliant Cut - Bezel Set - Slightly Greenish
Category

2010s American Solitaire Rings

Materials

Blue Sapphire, Platinum

NEW Platinum GIA Graded 2.89ct Bezel Set Purple Pink Sapphire Solitaire Ring
Located in Montclair, NJ
--Stone(s):-- (1) Natural Genuine Sapphire - Cushion Brilliant Cut - Bezel Set - Purple - Pink
Category

2010s American Solitaire Rings

Materials

Pink Sapphire, Platinum

Round Diamond Bezel Set Blue Sapphire Pave Set 18 Karat White Gold Unique Ring
Located in Fairfax, VA
Round Diamond Bezel Set Blue Sapphire Pave Set 18 Karat White Gold Unique Ring Size 7 13.82 grams
Category

2010s American Modern Cocktail Rings

Materials

Diamond, Blue Sapphire, 18k Gold, White Gold

NEW Platinum 2.12ct Cushion GIA Graded Pink Sapphire Bezel Set Solitaire Ring
Located in Montclair, NJ
--Stone(s):-- (1) Natural Genuine Sapphire - Cushion Brilliant Cut - Bezel Set - Vivid Purplish
Category

2010s American Solitaire Rings

Materials

Pink Sapphire, Platinum

1.10 Carat Sapphire and Diamond Platinum Bezel Set Three Stone Ring
Located in Beverly Hills, CA
One 1.10 Carat Sapphire and Diamond Platinum Bezel Set Three Stone Ring. Featuring one octagonal
Category

21st Century and Contemporary Three-Stone Rings

Materials

Diamond, White Diamond, Sapphire, Blue Sapphire, Platinum

Certified Emerald Sapphire & Bezel Set Diamond Three Stone Ring in Platinum
Located in New York, NY
Ring contains one center emerald shape sapphire weighing 2.91ct. Center stone is accented by two
Category

21st Century and Contemporary Contemporary Three-Stone Rings

Materials

Diamond, Sapphire, Emerald, Platinum

NEW Platinum GIA 1.55ct NO HEAT Bezel Set Greenish Blue Sapphire Solitaire Ring
Located in Montclair, NJ
--Stone(s):-- (1) Natural Genuine Sapphire - Cushion Brilliant Cut - Bezel Set - Greenish Blue
Category

2010s American Solitaire Rings

Materials

Blue Sapphire, Platinum

NEW Platinum 2.50ct Cushion GIA No Heat Blue Sapphire Bezel Set Solitaire Ring
Located in Montclair, NJ
--Stone(s):-- (1) Natural Genuine Sapphire - Cushion Brilliant Cut - Bezel Set - Slightly Greenish
Category

2010s American Solitaire Rings

Materials

Blue Sapphire, Platinum

NEW Platinum GIA 1.06ct No Heat Bezel Set Pinkish Purple Sapphire Solitaire Ring
Located in Montclair, NJ
--Stone(s):-- (1) Natural Genuine Sapphire - Cushion Brilliant Cut - Bezel Set - Pinkish Purple
Category

2010s American Solitaire Rings

Materials

Purple Sapphire, Platinum

New Platinum 1.18ctw Square Step Cut Sapphire Bezel Set Stack Wedding Band Ring
Located in Montclair, NJ
genuine sapphire stones neatly and individually bezel set across the top. These fine sapphires are square
Category

2010s American Wedding Rings

Materials

Sapphire, Platinum

Rose Gold Bezel Set Dark Blue Topaz with Surrounding Pink Sapphire Ring
By Christina Addison
Located in New York, NY
Pink Sapphires is an elegant cocktail ring. Measures 0.75 across the top. This Ring can be made with
Category

21st Century and Contemporary American Modern Cocktail Rings

Materials

Pink Sapphire, Topaz, 18k Gold, Rose Gold

Angara Bezel-Set Gia Certified Round Sapphire Solitaire Ring in Platinum
By ANGARA INC.
Located in Los Angeles, CA
Bezel-Set GIA Certified Round Sapphire Solitaire Ring
Category

21st Century and Contemporary American Modern Solitaire Rings

Materials

Platinum

Half Bezel Set 2 Carat Oval Blue Sapphire Vintage Ring in 14k Gold
Located in Miami, FL
Oval cut Blue Sapphire mounted in a half bezel yellow gold setting. The Sapphire center stone bears
Category

21st Century and Contemporary Art Deco Cocktail Rings

Materials

Blue Sapphire, 14k Gold

18K White Gold Oval Blue Sapphire & Baguette Diamond Channel and Bezel Set Ring
By Gad & Co.
Located in Miami, FL
This vintage unisex ring boasts a natural oval-cut Blue Sapphire, mounted in a half-bezel setting
Category

20th Century North American Modern Band Rings

Materials

Diamond, Blue Sapphire, White Gold, 18k Gold

14 Karat Yellow Gold Bezel Set Cornflower Blue Sapphire and Diamond Bypass Ring
Located in Scottsdale, AZ
: H Clarity: SI1 Sapphire: 1 oval cut = 2.07ct Dimensions: ring top measures 16.5mm wide Ring Size: 7
Category

21st Century and Contemporary Cocktail Rings

Materials

Diamond, Sapphire, 14k Gold, Yellow Gold

14 Karat Yellow Gold Rainbow Sapphire Bezel Set Eternity Band Ring for Her
By VR Jewels
Located in Houston, TX
Rainbow Sapphire Bezel Set Eternity Band Ring in 14k gold symbolizes the everlasting love between a
Category

21st Century and Contemporary American Contemporary Band Rings

Materials

Sapphire, Gold, 18k Gold, Yellow Gold

1 Carat Bezel Set Blue Sapphire and Diamond Ring in 14k Yellow Gold
By Gad & Co.
Located in Miami, FL
Blue Sapphire is mounted in an 14k yellow gold bezel setting with bezel set diamonds. The bezel setting
Category

2010s American Art Nouveau Cocktail Rings

Materials

Diamond, Blue Sapphire, 14k Gold, Yellow Gold

White Gold Sapphire and Diamond Eternity Bezel Ring
By Belfiore Jewelry
Located in Great Neck, NY
Sapphire and Diamond alternating eternity ring set in a bezel. The ring is 14K white gold. The
Category

21st Century and Contemporary American Modern More Rings

Materials

Diamond, Sapphire, White Gold, 14k Gold

1.38ct Old Euro Diamond Art Deco Inspired Bezel Set Ring Sapphire & Diamond Halo
Located in Addison, TX
focal point is a stunning 1.38 carat old European cut diamond, elegantly bezel set to exude timeless
Category

Early 20th Century Art Deco Engagement Rings

Materials

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

GIA Certified Pink Sapphire Half Bezel Ring & Channel Set Diamonds in 18K Gold
By Gad & Co.
Located in Miami, FL
natural Pink Sapphire with a half bezel setting. Complemented with 24 round-cut diamonds in channel
Category

2010s North American Art Deco Cocktail Rings

Materials

Diamond, Pink Sapphire, Yellow Gold, 18k Gold

1.66 ct Bezel Set Pear Cut Blue Sapphire Gemstone 18K Yellow Gold Solitaire Ring
By VR Jewels
Located in Houston, TX
support in achieving mental clarity. Designed with bezel set pear cut sapphire that makes it a perfect
Category

21st Century and Contemporary American Contemporary Solitaire Rings

Materials

Blue Sapphire, Sapphire, 18k Gold, Yellow Gold, Gold

Faye Kim 18 Karat Gold Ceylon Sapphire Bezel Ring
By Faye Kim
Located in Westport, CT
A beautiful, vivid shade of blue, this Ceylon Blue Sapphire round bezel ring is bezel set in 18K
Category

2010s American Contemporary Solitaire Rings

Materials

Sapphire, Gold, 18k Gold

Faye Kim 18 Karat Gold Ceylon Sapphire Bezel Ring
By Faye Kim
Located in Westport, CT
A beautiful, vivid shade of blue, this Ceylon Blue Sapphire round bezel ring is bezel set in 18K
Category

2010s American Contemporary Solitaire Rings

Materials

Sapphire, Gold, 18k Gold

Ceylon Cabochon Sapphire 4.83 Carat 14 Karat Yellow Gold Bezel Set Size 6 Ring
By OGI Ltd
Located in New York, NY
Introducing our exquisite Ceylon Cabochon Sapphire Ring, a stunning piece that effortlessly
Category

2010s American Contemporary Solitaire Rings

Materials

Sapphire, 14k Gold, Yellow Gold

.78 carat bezel set indigo/purple sapphire and 14k yellow gold ring by G&GS
By Glitter and Gold Studio
Located in Seattle, WA
unusual Isosceles trapezoid shape of the featured .78 carat purple sapphire. The bezel setting for the
Category

2010s North American Contemporary Solitaire Rings

Materials

Sapphire, Purple Sapphire, Yellow Gold

Edwardian Sapphire and Diamond Bezel Set Five Stone Ring in 18ct White and Yello
Located in Yorkshire, West Yorkshire
This Edwardian Sapphire and Diamond bezel set five stone ring is a testament to early 20th-century
Category

Vintage 1910s British Edwardian Cocktail Rings

Materials

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

Angara Bezel-Set Gia Certified Round Sapphire Solitaire Ring in Yellow Gold
By ANGARA INC.
Located in Los Angeles, CA
Bezel-Set GIA Certified Round Sapphire Solitaire Ring
Category

21st Century and Contemporary American Modern Solitaire Rings

Materials

Yellow Gold

Angara Bezel-Set Gia Certified Round Sapphire Solitaire Ring in White Gold
By ANGARA INC.
Located in Los Angeles, CA
Bezel-Set GIA Certified Round Sapphire Solitaire Ring
Category

21st Century and Contemporary American Modern Solitaire Rings

Materials

White Gold

Angara Bezel-Set Gia Certified Round Sapphire Solitaire Ring in Rose Gold
By ANGARA INC.
Located in Los Angeles, CA
Bezel-Set GIA Certified Round Sapphire Solitaire Ring
Category

21st Century and Contemporary American Modern Solitaire Rings

Materials

Rose Gold

Angara Bezel-Set Gia Certified Round Sapphire Solitaire Ring in Yellow Gold
By ANGARA INC.
Located in Los Angeles, CA
Bezel-Set GIA Certified Round Sapphire Solitaire Ring
Category

21st Century and Contemporary American Modern Solitaire Rings

Materials

Yellow Gold

Angara Bezel-Set Gia Certified Round Sapphire Solitaire Ring in Rose Gold
By ANGARA INC.
Located in Los Angeles, CA
Bezel-Set GIA Certified Round Sapphire Solitaire Ring
Category

21st Century and Contemporary American Modern Solitaire Rings

Materials

Rose Gold

Angara Bezel-Set Gia Certified Round Sapphire Solitaire Ring in White Gold
By ANGARA INC.
Located in Los Angeles, CA
Bezel-Set GIA Certified Round Sapphire Solitaire Ring
Category

21st Century and Contemporary American Modern Solitaire Rings

Materials

White Gold

Angara Bezel-Set GIA Certified Round Blue Sapphire Solitaire Ring in Platinum
By ANGARA INC.
Located in Los Angeles, CA
Bezel-Set GIA Certified Round Blue Sapphire Solitaire Ring
Category

21st Century and Contemporary American Modern Solitaire Rings

Materials

Platinum

Angara Bezel-Set GIA Certified Round Blue Sapphire Solitaire Yellow Gold Ring
By ANGARA INC.
Located in Los Angeles, CA
Bezel-Set GIA Certified Round Blue Sapphire Solitaire Ring
Category

21st Century and Contemporary American Modern Solitaire Rings

Materials

Yellow Gold

Angara Bezel-Set GIA Certified Round Blue Sapphire Solitaire Yellow Gold Ring
By ANGARA INC.
Located in Los Angeles, CA
Bezel-Set GIA Certified Round Blue Sapphire Solitaire Ring
Category

21st Century and Contemporary American Modern Solitaire Rings

Materials

Yellow Gold

4mm Wide Rainbow Sapphire Bezel Set Wedding Band 14K Gold
Located in Osprey, FL
♥ 4mm Wide Rainbow Sapphire Bezel Set Wedding Band 14K Gold ♥ The design measures 3.8mm in length
Category

2010s American Wedding Rings

Materials

Sapphire, Gold, 14k Gold

Blue Sapphire Bezel Set Band Stacking Ring in 14k Solid Yellow Gold Gift for Her
By VR Jewels
Located in Houston, TX
Blue Sapphire Bezel Set Band Stacking Ring in 14K Gold symbolizes the everlasting love between a
Category

21st Century and Contemporary American Modernist Band Rings

Materials

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

NEW Platinum GIA Bezel Set NO HEAT Sapphire & Diamond Dual Pear Cut 2 Stone Ring
Located in Montclair, NJ
at the top of the ring with a pear cut diamond bezel set at the other. The sapphire is certified as
Category

2010s American Band Rings

Materials

Diamond, Sapphire, Platinum

New 14k Rose Gold 1.01ct Oval Gia No Heat Pink Sapphire Bezel Set Solitaire Ring
Located in Montclair, NJ
rose gold featuring a pink sapphire that is neatly bezel set at the center. The center stone is an oval
Category

2010s American Solitaire Rings

Materials

Pink Sapphire, 14k Gold, Rose Gold

Jack Kelege White Sapphire and Diamond Bezel Pave Ring Platinum
By Jack Kelege
Located in Carmel-by-the-Sea, CA
Platinum engagement ring designed by Jack Kelege set with a natural radiant cut white sapphire and
Category

Early 2000s Unknown Fashion Rings

Materials

Sapphire, Diamond, Platinum

Shield shaped bezel set .90 carat purple sapphire and 14k white gold ring by G&G
By Glitter and Gold Studio
Located in Seattle, WA
14k white gold ring features a bezel set, deep purple .90 carat sapphire shield. This ring is a size
Category

2010s North American Contemporary Solitaire Rings

Materials

Sapphire, Purple Sapphire, White Gold

14 Karat White Gold Bezel Set Sapphire and Diamond Band
Located in Scottsdale, AZ
Dimensions: ring top measure 3.41mm wide Ring Size: 6.5 (complimentary sizing available) Weight: 6.75 grams
Category

21st Century and Contemporary Band Rings

Materials

Diamond, Sapphire, 14k Gold, White Gold

Angara Bezel-Set GIA Certified Round Blue Sapphire Solitaire Ring in Rose Gold
By ANGARA INC.
Located in Los Angeles, CA
Bezel-Set GIA Certified Round Blue Sapphire Solitaire Ring
Category

21st Century and Contemporary American Modern Solitaire Rings

Materials

Rose Gold

Angara Bezel-Set GIA Certified Round Blue Sapphire Solitaire Ring in White Gold
By ANGARA INC.
Located in Los Angeles, CA
Bezel-Set GIA Certified Round Blue Sapphire Solitaire Ring
Category

21st Century and Contemporary American Modern Solitaire Rings

Materials

White Gold

Angara Bezel-Set GIA Certified Round Blue Sapphire Solitaire Ring in White Gold
By ANGARA INC.
Located in Los Angeles, CA
Bezel-Set GIA Certified Round Blue Sapphire Solitaire Ring
Category

21st Century and Contemporary American Modern Solitaire Rings

Materials

White Gold

Angara Bezel-Set GIA Certified Round Blue Sapphire Solitaire Ring in Rose Gold
By ANGARA INC.
Located in Los Angeles, CA
Bezel-Set GIA Certified Round Blue Sapphire Solitaire Ring
Category

21st Century and Contemporary American Modern Solitaire Rings

Materials

Rose Gold

0.83 Carat Total Weight Round Pink Sapphire Bezel Set Eternity Band
Located in Houston, TX
that are bezel set in 14 karat yellow gold. This ring is a size 7.
Category

21st Century and Contemporary American Band Rings

Materials

Pink Sapphire, 14k Gold, Yellow Gold

Ombre Gemstone Ring, Minimalist Gemstone Bands, Bezel Set Solid Gold Ring, 14k
Located in New York, NY
Round gemstone bezel ring crafted in 14k solid gold with AAA grade natural Pink and blue Sapphire
Category

21st Century and Contemporary American Modern Band Rings

Materials

Blue Sapphire, Pink Sapphire, Gold, 14k Gold

Platinum Oval Bezel Sapphire Pave Diamond Covered Milgrain Platter Cocktail Ring
Located in Montclair, NJ
a special statement! Enjoy :) --Stone(s):-- 1 Natural Genuine Sapphire - Oval Brilliant Cut - Bezel
Category

1990s Solitaire Rings

Materials

Diamond, Sapphire, Platinum

  • 1
  • ...
Get Updated with New Arrivals
Save "Bezel Set Sapphire Ring", and we’ll notify you when there are new listings in this category.

Bezel Set Sapphire Ring For Sale on 1stDibs

Surely you’ll find the exact bezel set sapphire ring you’re seeking on 1stDibs — we’ve got a vast assortment for sale. Frequently made of Gold, Yellow Gold and 18k Gold, this item was constructed with great care. You can easily find a 7 antique edition and 24 modern creations to choose from as well. Making the right choice when shopping for a bezel set sapphire ring may mean carefully reviewing examples of this item dating from different eras — you can find an early iteration of this piece from the 20th Century and a newer version made as recently as the 21st Century, both of which have proven very popular over the years. As it relates to this specific piece, our collection includes designs that are universally popular, but 1.5 Carat and 2 Carat carat weights, specifically, are sought with frequency. Finding an appealing bezel set sapphire ring — no matter the origin — is easy, but Sarosi By Timeless Gems, OGI Ltd and Sunita Nahata each produced a popular version that is worth a look. See these pages for a round cut iteration of this accessory, while there are also oval cut cut and emerald cut cut versions available here, too. Most of our bezel set sapphire ring for sale are for women, but there are 12 pieces available to browse for men.

How Much is a Bezel Set Sapphire Ring?

The price for a bezel set sapphire ring starts at $500 and tops out at $45,000 with these rings, on average, selling for $1,690.

Finding the Right Rings for You

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 ringsvintage 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.