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Sandra Cronan

London-based Sandra Cronan Ltd pride themselves on being one of the leading specialists in sourci...

Sapphire crystal

A very hard, transparent, scratch-resistant and shatterproof material commonly used as a cover fo...

Sapphires

This valuable gemstone comes from the mineral corundum. Although blue is the most popular colour,...

Screw-down crown

A safety system designed to prevent water from entering the movement. The crown is designed like ...

Second time zone indicator (dual time zone)

A secondary dial on a watch that can be set to show a different time zone, allowing the wearer an...

Self-winding

An alternative term used to describe an automatic watch that obtains its energy from the wearer’s...

Shank

The shank, also called the band, is the part of a ring that encircles the finger. It may also ref...

Sheldon Bloomfield

With more than 25 years of experience, Sheldon Bloomfield - a small family-run independent trade-...

Shoulders

In jewellery, the shoulder is the part of a ring where the shank and setting join. 

Siegelson

The third generation of the New York-based gem and jewellery dealers, Lee Siegelson is known in t...

Signet ring

A signet ring is a ring that is engraved with a seal or monogram. Initials are often used in sign...

Silver

This pliant white metallic element is extremely ductile and can hold a high degree of polish. It ...

Simon Teakle

Like the rare diamonds he surrounds himself with, Simon Teakle has a sparkle in his eye and a kee...

Skeleton

A skeletonised watch dial allows a view of the movement, which is often decorated.

Small seconds

A small counter or sub-dial on the dial showing the seconds function, usually to allow for the ce...

Snow setting

The Jaeger-LeCoultre Manufacture invented the snow-setting technique for diamonds and uses it pri...

Sotheby's

Founded in 1744 as a book auctioneer, Sotheby's has become the first international auction house ...

South Sea pearls

Large pearls that come from the Pinctada Maxima oyster are known as South Sea cultured pearls. Th...

Spare Room antiques

Spare Room antiques, trading since 1979 specialises in Georgian and Victorian jewelry and sells f...

Speedmaster watch by Omega

The legendary Speedmaster was the first - and still the only - watch to have been to the Moon. Or...

Spicer Warin

Spicer Warin is a British jewellery retailer specialising in fine jewellery, diamonds, gem stones...

Split-seconds or rattrapante chronograph

A complication that can activate two chronograph hands, allowing the wearer to time different eve...

Stephen Russell

Stephen Russell, which offers "jewels of distinction", is a New York jewellery dealer with a stor...

Stone & Strand

Former business consultant Nadine McCarthy Kahane and luxury magazine jewellery editor Brooke Mag...

Sub-dial

A small additional dial or counter on the dial used to indicate information such as date, power r...

Sue Brown

Antique jewellery Sue Brown provides vintage rings and other "interesting' antique jewellery to h...

Susan Ollemans Gallery

Susan Ollemans Gallery specialises in Mughal and antique Gold Indian jewellery as well as antique...