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  • A truly fabulous antique opal and diamond cocktail ring. Believed to be c.1850-1900 this impressive piece features a sizable moval opal to the centre. Estimated at just shy of two and a half carats in weight, the natural opal has a subtle play of colour that dances across its surface as turned in the light. The opal has some superficial wear visible with magnification but is in lovely condition overall. Hard to say but due to the excellent condition of the stone and the setting style we suspect it could be a replacement stone, perhaps set in the place of an older glass panel, although we are certainly not complaining at its addition.


    Surrounding the opal is a stunning boarder of chunky old mined cut diamonds on a backdrop of rich blue enamel. The old cut stones each have that perfect squarish outline of true 1800s diamonds, which followed the natural crystal structure of the rough diamond. Set in classic early Victorian, cut down, collets in contrasting silver that hug the individual outlines of the diamonds to perfection. There is one diamond which is an eight-cut opposed to an old mined cut and likely a replacement stone, although it blends in wonderfully and is in keeping with the era of the ring. There are one or two subtle knicks to the diamonds visible under magnification, but these are very minor and hard to notice even with the aid of a loupe.


    Possibly beginning life as a brooch or clasp the piece appears to have been converted into a ring at a later stage in its life. A sympathetic 18ct gold gallery being carefully soldered into place to create this stunning piece.


    Sized using an old sizing technique of adding gold balls to the inside of the shank the ring measures a size K (US 5 1/8) on a mandrel but fits truer to M – O (US 6 – 7). Due to this it is not possible in our opinion to reduce the size of the ring any further, although we can happily make it larger. With the removal of the balls we estimate the ring would be approximately a size S (US 9 1.8) and could happily be made larger still.

    Exceptional Opal, Diamond and Enamel Cocktail Ring

    • Stones: Opal, diamond and enamel

      Opal Carat: 2.40ct (23.5mm x 9mm x 2mm)

      Diamond Cut: Old mined cut

      Diamond Carat: 0.60 – 0.75ct approx. (1.8 – 2mm)

      Dimensions of Head: 32mm x 16mm

      Metal: 18ct gold (with silver accents), tested

      Weight: 10.5g

      Ring Size: M – O approx.(US 6 - 7)

    • Please add the size you require as a note at checkout. 

      We offer a ring re-sizing service by our antique specialist for a small fee, starting at £40.

      Most of our rings can be resized, but if they can’t we will stipulate this in the description.

      As a rule we will only alter a ring by three UK sizes. If you would like to size a ring more than three UK sizes (either up or down) please contact us on a case by case basis and we will try and accommodate you as best as possible.

      We do not offer refunds on altered pieces, so please make sure you love your new piece before you purchase. 

      Sizing takes approximately 1-2 weeks.

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