A platinum Lucida-cut diamond half eternity ring, by Tiffany & Co. Estimated total diamond weight

A platinum diamond half eternity ring. The baguette-cut diamond line, within a channel setting, to the tapered band. Estimated total diamond weight 1.35cts. Hallmarks for London, 2006. Ring size K1/2.

A platinum diamond half eternity ring. Designed as a series of brilliant and baguette-cut diamond lines, with bar spacers and plain half-band. Estimated total diamond weight 0.75ct. Hallmarks for Lond

A mid 20th century platinum diamond half-circle eternity ring. Designed as a series of ten brilliant-cut diamonds, to the engraved half-band. Estimated total diamond weight 0.70ct. Ring size M1/2. Wei

TIFFANY & CO. - a diamond dress ring. Designed as a brilliant-cut diamond and polished bar lattice, with tapered half-band. Signed T&Co. Estimated total diamond weight 0.40ct. Ring size L. Weight 6.5g

Gorgeous Tiffany & Co platinum and diamond eternity band. 35 Round brilliant cut diamonds, approx. total diamond weight is approx. 1 cttw. This open back ring is marked Tiffany & Co IRID PLAT. This si

Gorgeous Tiffany Style platinum and diamond eternity band. 35 Round brilliant cut diamonds, approx. total diamond weight is approx. 1/2 cttw. This open back ring is marked Tiffany & Co IRID PLAT. This

Handmade 18K Gold and Platinum Ring. Signed Schlumberger, set with (16) Round Brilliant cut natural diamonds. Approximate total weight is 1.14ct. Clarity VS1, Color E-F. Ring size 4 1/2. With appraisa

Crafted in platinum; set with round brilliant-cut diamonds weighing a total of approximately 2.80 carats, most with E-F color and VVS-VS clarity; width measures 1/8 inch; ring size 4-1/2; weight 5.20

TIFFANY & CO. - a single platinum diamond stud earring. Designed as a brilliant-cut diamond trefoil. Signed Tiffany & Co. Estimated total diamond weight 0.50ct, H-I colour, VS2-SI1 clarity. Hallmarks

TIFFANY & CO. - a diamond 'Signature X Kiss' ring. Designed as a brilliant-cut diamond cross, atop a grooved tapered band. Signed Tiffany & Co. Estimated total diamond weight 0.30ct. Ring size K. Weig

An 18ct gold diamond half eternity ring. The brilliant-cut diamond chevron line, within a channel setting. Estimated total diamond weight 0.40ct. Hallmarks for Birmingham. Ring size N. Weight 4gms.

An 18ct gold diamond half eternity ring. The brilliant-cut diamond line, with plain band. Estimated total diamond weight 0.15ct. Hallmarks for Birmingham. Ring size N1/2. Weight 2.8gms.

An 18ct gold diamond half eternity ring. The brilliant-cut diamond line, with plain band. Estimated total diamond weight 0.20ct. Hallmarks for Birmingham, 2013. Ring size M. Weight 1.8gms.

A sapphire and diamond half eternity ring. The alternating circular-shape sapphire and brilliant-cut diamond line, with baguette-cut diamond spacers. Estimated total diamond weight 1ct. Ring size R1/2

A 9ct gold diamond half-circle eternity ring. The alternating square-shape and single-cut diamond bars, to the tapered half-band. Estimated total diamond weight 0.65ct. Hallmarks for Sheffield. Weight

An 18ct gold diamond and sapphire half eternity ring. Designed as an alternate brilliant-cut diamond and circular-shape sapphire line, with slightly tapered band. Estimated total diamond weight 0.15ct

A diamond half eternity ring. Designed as a brilliant-cut diamond line, within a channel setting. Estimated total diamond weight 0.10ct. Ring size K1/2. Weight 2.7gms.

A diamond half-circle eternity ring. The brilliant-cut diamond line, within a channel-setting, to the plain band. Estimated total diamond weight 0.70ct. Ring size I. Weight 4.6gms.

An 18ct gold diamond half-circle eternity ring. Comprising a series of alternating baguette and brilliant-cut diamond bars, to the plain half-band. Estimated total diamond weight 0.50ct. Hallmarks for

An 18ct gold diamond half-circle eternity ring. The brilliant-cut diamond line, with tapered half-band. Estimated total diamond weight 0.30ct. Hallmarks for Birmingham. Ring size N. Weight 3.3gms. Ove

A diamond half-circle eternity ring. The brilliant-cut diamond line, to the plain half-band. Estimated total diamond weight 0.50ct. Weight 3.2gms.

A diamond half-circle eternity ring. The baguette-cut diamond line, within a channel setting, to the tapered band. Estimated total diamond weight 0.65ct. Ring size K. Weight 4gms.

A 14ct gold diamond half-circle eternity ring. The brilliant-cut diamond line, to the tapered half-band. Estimated total diamond weight 0.25cts. Hallmarks for Sheffield. Ring size O 1/2. Weight 3.2gms

A diamond half eternity ring. The rose and old-cut diamond line, with tapered band. Estimated total old-cut diamond weight 0.40ct. Ring size L. Weight 3.4gms.