1 carat Diamond Ring Vintage Sapphire Engagement Ring Platinum and Sapphire Vintage Cluster Ring Fine Estate Jewelry

£2,750.00

Spectacular sapphire and diamond ring

Sapphire platinum and diamond cluster engagement ring

Set to the centre with a gorgeous royal blue sapphire

The oval 9 mm x 6.5 mm Sapphire weighs about 1.50 carat

Circled by twelve beautiful diamonds set in a platinum scalloped surround that shows them off to perfection

The brilliant cut diamonds are about 2.8 mm total weight circa one carat

They are very clear & bright with immense sparkle.Colour H Clarity VVSI

The head measures 15 mm x 13.5 mm and it stands 3.5 mm proud of the shank

It is size UK Q, USA 8 1/4 it would easily re size

It is a high quality sapphire and diamond ring weighing 4.2 grams. The shank is stamped PLAT

This vintage sapphire ring is in excellent condition and would be the ideal engagement ring

This fabulous sapphire and platinum ring is so comfortable to wear and looks simply stunning

our ref 1861

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Description

Jewellery Facts 

Carat has two distinct meanings

Carat can refer to the quality or purity of gold –

pure gold ie  a metal that is 100% gold and nothing else but gold, is known as pure gold or 24 carat gold

So for example with a ring which is 18 carat ie 18/24s gold or put another way, 18 divided by 24 is 0.750  or 3/4

You may see jewellery marked 0.750 which is a some what modern way of writing 18ct as we say in the UK and 18k as they say in the rest of the world

The colour of pure gold is yellow. However if gold is mixed with other metals it can  become a silvery colour, known as white gold, or  pinky and is then known as rose gold

Secondly carat can refer to the weight of precious stones such as diamonds and sapphires

One carat is 1/5 of a gram – so 1/2 of a carat is 1/10 of a gram

A slightly outmoded way on expressing a diamonds weight is the point system. In this method a carat is said to be 100 points, so a 1/2 carat diamond for example would be a 50 pointer. You will find this system used in vintage books and catalogs, mostly when refering to antique diamonds – old cut, old European cut, old mine cut, old brilliant cut, swiss cut and rose cut etc

Platinum marks 

 In 1973 platinum was first covered by the hallmarking act,  A standard of 950 parts per thousand was introduced.

The platinum mark is an orb with a cross on the top all set within a pentagon.

First pieces  were marked  in January 1975 at the London assay office

Jewellery Periods

Georgian        Georges      1714  –  1837

Victorian        Victoria     1837 – 1901

Edwardian     Edward  V11   1901 – 1910

Belle Epoque    Garland   Art Nouveau   Art Deco

please contact Paula for more details and to discuss price

Email       the.chelsea.bijouterie@gmai