A garnet doublet dress ring

SKU: P23312

An unusual dress ring containing five oval stones that have the hue and colour of cornflower blue sapphires. However, unusually these are in fact garnets. You can read below just how these are created. 

This ring dates to around 1890, the stones graduate in size from 4 to 5mm, all claw set. The head spreads to 16mm width, height 6mm, depth 4mm, weight 3grams. No hallmark was required for this period, tests as 18 carat gold. 

The colours are so like sapphires we had to have them tested by GemLab to confirm their status. If they were sapphires the price would be nearer to £1500, but its such a pretty ring as it is. Size P- we can resize free of charge

Garnet Topped Doublets (or GTDs) have a thin slice of red garnet fused to the surface of molten glass – no glue is used. Once it has been cut and polished the join line may be seen in the crown facets of the stone rather than at the girdle as you might spot in other composite stones.
As garnet is harder than glass – 7.5 as opposed to 6 – it makes the table of the stone more resistant to wear and may have natural garnet inclusions giving the appearance of a natural stone on first glance.
First used around 1850, they may be found in antique jewellery imitating emeralds, sapphires or rubies, depending on the colour of the glass used. Interesting that the red of the garnet does not affect the perceived colour of the stone, for example, the red garnet and blue glass do not look like a purple stone.

Age or Designation

Victorian (1839-1901)

Precious Stone


Ring Size


Metal Type


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Supplied through our High Street retail shop established for over 200 years! You can purchase, in the knowledge as with all Vintage Tom items we offer a written appraisal. Gift box supplied.
Customer reviews
Good range of fine vintage jewelry. Excellent service. We purchased a ring on trial, it wasn't quite right, but the entire purchase and return/refund process was quick and easy. Highly recommended.
— L. Bruce
Excellent quality item and I was surprised to find that it was lovelier than picture.  Delivery was also very fast.  Would definitely recommend the jewellers and would buy jewellery again from them.  Thank you.  
— S Jones
Bought an Opal ring as a gift, lovely, but then saw another I preferred, still from Vintage Tom. Received both rings the day after purchase. I received a pre-paid envelope to send item back, which makes returns simple. I was refunded for the first ring the day after I had returned it. I preferred the first box, so they sent me that one too. Absolutely first class experience, can’t think of any other place I’ve shopped that comes close. Vintage Tom/Charles Hart Jewellers will be first on my list for any new purchase. If I could give 10 stars I would. Excellent.
— E Hartwell
I purchased an eternity ring for my wife via the Vintage Tom website. The whole experience has been great, not just the product but especially the team, particularly Alex Hart, who couldn't have been more helpful.
— Peter H.
I ordered the ring on a Sunday evening and I got a tracking email saying it had been sent by 10.30am the next morning. The ring arrived quickly in a lovely box and was exactly as shown and described, it also came with a valuation certificate. This is the second time we have used Vintage Tom and both times we have been really impressed. They offer free resizing, free delivery and free returns and although we didn’t need to contact them this time around, when we did last time Alex was so helpful. I would absolutely recommend them.
— Hannah W
First class service highly recommend
— Martin M.
Great service from a wonderful small business. My partner bought my vintage engagement ring from Charles Hart this year and I have recently found the perfect Christmas gift there for him too! Delivery was prompt and the item is in immaculate condition (and absolutely stunning!) It’s so much more pleasurable to shop with an independent business than the big chains and you get so much more for your money. Thank you again!
— Emma
The customer service was second to none . Absolutely brilliant . Emailed me out of hours .. Alex contacted me every time he said he would and on time - if I ever want any jewellery again I will be calling this shop . Absolutely brilliant. Thank you
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