The items that are able to add a socket to a necklace are determined by how many sockets IT ALREADY HAS.
If a necklace has no sockets, you can use a Сложная оправа для медальона, Сложная оправа для медальона or Сложная оправа для медальона to add the FIRST socket.
If a necklace already has one socket, you can use a Сложная оправа для медальона or Сложная оправа для медальона to add the SECOND socket, you cannot add a second or third socket to a necklace using Сложная оправа для медальона.
If a necklace already has two sockets, you can only use a Сложная оправа для медальона to add the THIRD AND FINAL socket.

So basically, you can use the cheapest of the three qualities for the first socket, and the cheapest between quality 2 and 3 for the second socket, but will have to get a quality 3 for the final socket.

Edit: Confirmation that the above information is in fact correct. After further testing and publicly posted data, we can now confidently confirm that the description IS in fact misleading, and the text description `The quality of this item determines up to how many sockets it can add.` does not mean a Сложная оправа для медальона can add up to 3 sockets, it merely means the 3rd socket can only be added by a Сложная оправа для медальона.

Комментарий от Cuffouis

As of the moment, the below "Tiered Medallion Setting" for a gem socket cannot be used on Обсидиановый ошейник, however Blizzard is currently working on a fix.

Сложная оправа для медальона
Сложная оправа для медальона
Сложная оправа для медальона

https://eu.forums.blizzard.com/en/wow/t/obsidian-collar-doesnt-let-you-apply-sockets/410169

Комментарий от Oloh

If I already put a socket rank II, can I no longer put a socket rank I?

Комментарий от Aisenfaire

The bug preventing you from applying this to some necks has been fixed:

Common Problems

I have a Tiered Medallion Setting, but cannot add it to my 389 Necklace from Wrathion/Sabellian
I can't use Tiered Medallion Setting to add a socket to my Necklace
I can't use the Tiered Medallion Setting on my Obsidian Collar

Our developers have fixed the issue that was causing this problem. Please try again.

https://us.battle.net/support/en/article/325012

Комментарий от darkness2k

Make sure you apply them in order of rank (1, 2, 3) as to avoid... frustration.

Комментарий от Majestick

Quick warning to anyone applying this: Once you select your neck piece and it asks if you are sure - if you press "No/Cancel" item will dissapear/be consumed without adding a socket. Just had this happen 2/15/2023. Not sure if it happens 100% or just chance/bug but fyi fair warning.

Комментарий от seed7779

Is it possible quality 3 without Lesser Illustrious Insight? how to sellect Profession Knowledge Points?

Комментарий от CCwow

For those who wonder, sockets are NOT DESTROYED/REMOVED when you upgrade your item to higher iLvL ^^

Комментарий от Peregran

Does anyone know if the Tiered Medallion Setting can be added to the new items from Dreamsurge such as the Dreambound Choker? The description makes it sound like it works but when I try it I get "That item cannot be modified". Is this accurate or is it just a bug?

Thanks in advance!

Комментарий от keyolumin

As a JC, i have everything maxed out, except the statue/idol talents and I still have 261/275 skill when crafting with r3 mats. I just tried to put a single point into the Carving talent (idol+statue ) and didnt increase my skills. Still have 261/275. I suppose you cant craft r3 Сложная оправа для медальона without insight

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Сложная оправа для медальона

Уровень предмета: 415

Использование: Добавляет гнездо для самоцветов в ожерелье Драконьих островов высокого уровня. В ожерелье может быть до трех гнезд.

Количество гнезд зависит от качества предмета.
Качество:

Максимум в стопке: 200

Цена продажи: 2

Сложная оправа для медальона

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