Okay ^_^
I'll send over the Fire Heart over to you to :)

How much money do you want for some easter eggs?

There wouldn't be any point in buying any XD Festival ends today or it ended yesterday...plus I only have 8 Easter Eggs XD

I'm tentatively interested in the following items, but I have no idea what a fair trade value would be for them, so we may have to do some negotiating to reach an agreement.

Amethyst Staff Of Eternal Love
Fiery Ny vene hatchling
Staff Of Ghostly Shadows
Ice Claw Staff Of Frostbite

Elegant Snow Swan Regalia
Knight Of Hearts Armor
Frozen Plate Armor
Sugar Plum Outfit

Circlet Of The Deep Sea
Wings Of The Ice Queen
Witch's Cape
Nephini Buddy

As I mentioned, I'm new enough that I'm not fully acquainted with Sylestia's avatar item market, I only know what's pretty. xD So if you can give an approximate value on the items I want, it would be a big help.

As for what I can offer, I have an enhanced essence of Griffi, Kelpari, and Zolnixi, and normal essences of almost everything. I have a magical pie, a few lesser mutators and lesser dyes.
I have a TL aeri offspring, tagged EB lune, rainy day aurleon, First Sun Nyte, rosebud luffox, guardian morrko, 1-vis budding Kelpari offspring.

I don't have much gold, but I can save up if you need more. :-)

You like most of the same stuff I did when I joined XD

Well anyway...
I would be happy to trade Ice Claw Staff Of Frostbite for enhanced griffi ess or enhanced nixi >_>
The other items I am probably looking for...over 250K for the outfits ( some are a bit more due to rarity ) and 60K for a few of the helds ( a bit more for some of the old ones, like Staff of Ghostly Shadows)...and probably 1M or something for wings of Ice Queen... >_>

Also diamond shop things probably 625K for nephini buddy ( going buy the amount of diamonds it cost to buy it and the lowest price of diamonds from exchange )

So yeah XD Things can be pretty expensive if you look at how much some are being sold on broker >_>
All my prices I got from broker and how much I've seen some go for on there so yeah...apart from Nephini buddy which I just estimated...

I'm pretty sure the essences are more valuable many times over than that staff, and honestly that staff is the lowest priority item on my list; I could pick one up for 50k in the broker and I've seen the enhanced griffi essences posted for well over a million if they're available at all... or they cost 750 diamonds in the store.
(Are you not interested in any of the other things I listed, then?)

How about both the griffi and zolnixi essence for the nephini buddy, love staff, and the snow swan outfit? I could throw in a normal essence of those kinds too if you want.

Sorry but I don't want to trade them for those ess >_> Would be very un-fair due to Snow Swan outfit being a legendary item and Nephini Buddy being a diamond shop item that is re-colourable and love staff also being a legendary held

Well, I was just going off the prices you listed and the broker value of the essences... but even at diamond shop prices I don't see how it's 'very' unfair... :shrug:
The griffi essence is 750 diamonds, the nephini buddy is 250 diamonds; unless you're valuing the other avatar items at higher than 250 diamonds each, 2 enhanced and 2 normal essences seems fair enough to me. But the ultimate decision is obviously in your hands. :-)

(Are you going to propose any sort of counter-offer at any point, or should I just keep guessing in the dark as to what you might be willing to accept?)

How about just the nephini and fiery ny'vene for the essences?

Well I'm also considering the trade broker g prices, how much I like them personaly ( that's why some have M next to them )
I have seen enhanced stuff go for roughly 500K but most of the stuff you want would go much higher in broker

So if you don't mind I would not feel comfortable trading away two things I like for a 1 time use ess

I would probably accept gold or diamonds for them ( or other avatar items )

Any particular avatar items you're looking for?