£500 to £1,000

18ct 4-claw diamond solitaire engagement ring

18ct 5-stone diamond ring

18ct diamond halo engagement ring

18ct emerald-cut diamond solitaire engagement ring

18ct white gold square style diamond ear studs

2001 Bezel Set Diamond Three Stone Ring

Antique Diamond Brooch

Antique Diamond Pheasant Stick Pin

Antique Edwardian Old Cut Diamond Ring

Diamond half eternity ring

Diamond Half Eternity Wishbone Ring

Diamond set bow-style ring with crossover shoulders

Diamond Square Set Solitaire Ring

Platinum single stone square diamond ring

Princess-Cut Diamonds Half Eternity Ring

Round Cut Diamond Beaded Band Ring

Shaped Diamond Half Eternity Ring

Single stone diamond pendant

Vera Wang Heart Diamond and Sapphire Pendant

Vintage 1979 Star Set Diamond Signet Ring

Vintage 2002 Baguette Diamonds Three Stone Band Ring

Vintage Baguette-Cut Diamond Ring

Vintage Bezel Set Diamond Five Stone Ring

Vintage Bezel Set Diamond Full Eternity Ring

Vintage Diamond Cluster Ring

Vintage Diamond Cluster Ring

Vintage Diamond Five Stone Ring

Vintage Diamond Flower Cluster Ring

Vintage Diamond Half Eternity Ring

Vintage Diamond Set Bird Stick Pin

Vintage Diamond Seven Stone Ring

Vintage Diamond Solitaire Ring

Vintage Diamond Solitaire Ring

Vintage Diamond Solitaire Yellow Gold Ring

Vintage Diamond Twirl Ring

Vintage Four Stone Diamond Twisted Ring