Katherine Howard replica necklace

This parure is my replica of the necklace and carcanet worn by Katherine Howard in the Holbein portrait:
HANS HOLBEIN THE YOUNGER (1497/8-1543) Portrait of a Lady, perhaps Katherine Howard (1520-1542) c. 1540, in an exhibition, The Queen's Gallery, Buckingham Palace.

I have used imitation pearls and golden Tudor ouches for the necklace which measures from approximately 14/15 inches. It is designed to sit closely to the neck as seen in the picture but can be worn more loosely with the extension chain.

There is a golden filigree centre piece with drop pearl and golden bead cap. The centre piece is adorned with glass crystals, one iridescent fire oval and a peridot rectangle.

There are golden ouches with square orange crystals along the length of the necklace.

The carcanet is a longer piece which attaches separately It has its own lobster clasp and is designed to be worn long and tucked into your dress.

Is this Catherine Howard? According to The Royal Collection trust, we know this:
This miniature is one of two extant versions of this subject in miniature by Holbein. The other version, in the Buccleuch Collection, can be traced back to Thomas Howard, Earl of Arundel, in whose collection it was engraved by Wenceslaus Hollar as an unnamed subject. The earliest likely reference to the present miniature in the Royal Collection is in the Inventory of goods recovered at the Restoration by Col. W. Hawley, 1660–61, where it may be identifiable as: ‘A small peice Inclineing of a woman after ye Dresse of Henry ye Eights wife by Peter Oliver’. In neither instance was the name of Katherine Howard attached to the miniature. However, by c.1735 – 40, the Buccleuch version, by then in the collection of Jonathan Richardson, had been engraved by Jacobus Houbraken for Thomas Birch’s Heads of Illustrious Persons of Great Britain (1743) as Katherine Howard, Henry VIII’s fifth queen. When the present miniature was first recorded beyond doubt in the Royal Collection c.1837, it, too, bore this identification.

No conclusive evidence has yet been put forward to substantiate the persistent, but late, identification of this subject as Katherine Howard, particularly since there is no authentic contemporary likeness of the queen in existence. The most compelling argument in favour of her regal status is that the large ruby, emerald and pearl jewel which the sitter wears is the same as that shown in Holbein’s panel portrait of Henry VIII’s third queen, Jane Seymour (Kunsthistorisches Museum, Vienna) and that this, and the jeweled band around the sitter’s neckline, may have been given to Katherine Howard by Henry VIII on their marriage in 1540. However, Jane Seymour made gifts of her jewellery to her ladies-in-waiting, one of whom, Mary, Lady Monteagle (c.1510– 40/4), has also been suggested as a possible subject for the present miniature. Lady Monteagle’s features, as shown in Holbein’s drawing in the Royal Library, Windsor Castle, (RL 12223) bear some resemblance to the present sitter.

For me, the most significant piece of information is the reference to Jane Seymour's piece, and you will see from my replica that I have made the same pendant base for this piece also. I have lightened the ouches to a beautiful fire orange (unlike the black ouches in Jane's portrait,) and matched the pendant to these with an iridescent fire oval and peridot green crystal.

The set comes in my presentation gift box.