Help! Need identification Art Nouveau/Nature-inspired

[ashaletapeda]

Hey there, last year I purchased 12 pieces from a very large jewelry estate auction. I couldn't attach all photos. It was last year and I have yet to be able to identify anything other than this:
1. All stones/metals were certified authentic by a GIA professional prior to and after the auction.
2. Most pieces have tree frogs with gemstone eyes (rubies, etc), serpents, scorpion, flowers, or lily pads.

I am hopelessly lost and will have these pieces forever, so I am dying to know:
1. Maker; origins/story
2. Approximate/estimated value.
Any direction, kernel of information from someone who knows more than I would be endlessly appreciative.
Thank you for your time!

 

[Bron357]

Lovely and interesting.
Definately Artisan style jewellery, I don’t think they are necessarily “old”.
Do the pieces have maker marks or hallmarks on them, either for silver or gold?
Most artists hallmark their creations and generally silver and gold items sold “need” assay marks to confirm their metal content.
If the pieces have no hallmarks the creator may have just made them for her/his own enjoyment not for “commercial sale”.
The gems chosen are semi precious types, so not overly valuable per see. I’m presuming the “white/ blackened” metal is silver but are the gold accents gold plated or solid gold? Obviously with more gold content the value goes up.
Value, hard to say, the style is not to everyone’s taste but I’m sure a few hundred dollars (if solid gold embellishment) each piece, less if the pieces are mostly sterling silver/ gold plated silver.

 

[ashaletapeda]

Hi! Thanks for the thoughtful and thorough reply. I appreciate your help very much.
They all have assay marks. Some have two, and I can't decipher what they read, so I'm guessing it is to mark the gold and silver that was appraised (most have 3 letters/figures). Yes, the blacked metal is silver. It looks like some parts are gold-plated, but other parts appear to be solid.
I can't find any other signatures, unfortunately. Mostly, I would LOVE to know this artist to purchase more or to hunt down other estate pieces with the correct/accurate search parameters.

 

[ashaletapeda]

I couldn't fit this necklace pendant in the above attachments. It is a luminous moonstone with a lot of catch. As you can see, it, too has the tree frog on it and all the stones are rubies. I forgot to mention I have earrings that match most of the rings/necklace, too.