Lvl 82 Skeltons can drop uncut oynx but vary rare
1000000/1, considering no monsters drop then, you can only buy from shop for 300k tokkul, maybe less with karambja gloves.
I personally advise you not to make onyx jewelry because you lose over 2M making it, but buy uncut onyx in the Grand Exchange, or buy trade and cut it. Note that there is a chance that you will smash and you lose tons of money. then get an amulet mold and smith it.
No npc's sell onyx rings. An Onyx ring is made by using a gold bar, an onyx and a ring mould on a furnace. It requires a crafting level of 67 and provides 115 experience when made. There are only 2 ways to obtain an uncut onyx. * It can be purchased in the TzHaar crafting store for 300 000 Tokkul. If players equip Karamja gloves 1 or higher, this price is reduced to 260 000 Tokkul. * It is a rare drop from the Corporeal Beast.
You buy them in the TzHaar shops. It is also a very rare drop from Nex, and Kingly Impling.
The Uncut Onyx. But that takes a LOT of tokkul. It is worth about 12m though. I would just go with the Obsidian shield those are only about 47k tokkul and they sell for a lot. 300k+
you cannot the only way to get the onyx is to get by spending 2.7million tokkul in the tzhaar caves :)
enchant onyx, you can enchant an onyx necklace into an amulet of fury
1000000/1 .
31 July 2006 (according to the information in runescape.wikia.com).
It is not possible to obtain onyx gems easily; they can be bought in the TzHaar city from the gem and ore store, obtained as a reward from the Fight Kiln minigame, rewarded from a challenge mystery bag, looted from a Kingly impling (rare), or mining with a gem-finding scrimshaw.
to get a braclet of regeneration or regen brace for short start with an onyx gem and craft it with a gold bar and braclet mould in any furnace this will result in an onyx bracelet. finally cast the spell level 8 onyx enchant on the bracelet and you will finnaly have your regen brace
You can cut onyx, make them into necklaces to make a hughe profit, for even more profit enchant it to make an amulet of fury.