If you are looking to get your hands on an Uncut Onyx in Old School RuneScape to craft an Amulet of Fury, a Regenerative Bracelet, or Zenyte jewelry, trading Chaos Runes for Tokkul is one of the most efficient methods in the game. It is a vital strategy for Ironmen and a great way for main accounts to convert stackable runes into solid profit.
However, if you dump your runes into the TzHaar shop incorrectly, you will lose millions of GP due to changing shop stock values.
Below is the exact math, the optimal strategies, and the structural secrets to getting an Onyx without wasting a single Chaos Rune.
Contents
The Quick Answer: Chaos Runes to Onyx
The exact number of Chaos Runes you need depends entirely on whether you have completed the Karamja Easy Diary and how patiently you sell your runes.
| Setup Status | Tokkul Cost of Onyx | Tokkul Per Chaos Rune | Total Chaos Runes Needed |
| With Karamja Gloves (Optimal) | 260,000 | 9 | 28,889 |
| Without Karamja Gloves | 300,000 | 9 | 33,334 |
🛑 Critical Warning
These numbers assume you are getting the maximum value of 9 Tokkul per Chaos Rune. If you dump all 28,000+ runes into a single world at once, the shop’s stock will skyrocket, the price it pays you will plummet to 1 Tokkul per rune, and you will lose a massive amount of gold.
Why Karamja Gloves Are Absolutely Mandatory
Before you buy a single rune, you should complete the Karamja Easy Diary. Doing so rewards you with Karamja Gloves 1.
When wearing these gloves in the TzHaar city of Mor Ul Rek, the vendor prices are heavily discounted.
- Without the gloves, an Uncut Onyx costs a steep 300,000 Tokkul.
- With the gloves equipped, the price drops to 260,000 Tokkul.
Saving 4,445 Chaos Runes is well worth the 15 minutes it takes to complete the Easy Diary requirements.
The Catch: Shop Stock & Depreciation Mechanics
The TzHaar Rune Store (TzHaar-Mej-Roh’s Rune Store) has a default stock of 250 Chaos Runes. When the shop is at its default capacity or lower, it will buy your Chaos Runes for 9 Tokkul each.
Every time you sell a rune to the shop, the shop’s stock increases, and the amount of Tokkul it offers you goes down. If you want to remain perfectly efficient, you have to manage how many runes you sell per world.
Strategy 1: The “Sell 10 or 50 and Hop” Method (Most Popular)
To balance your real-world time with maximum GP efficiency, players typically sell runes in small batches and then hop worlds.
- Sell 10 per world: The price stays at 9 Tokkul per rune. This requires the fewest runes (28,889) but requires a lot of world-hopping.
- Sell 50 per world: The price dips slightly as you sell, averaging out to roughly 8.5 Tokkul per rune. This means you will need approximately 30,500 Chaos Runes, but it cuts your world-hopping time down significantly.
Strategy 2: The Bulk Dump (Not Recommended)
If you simply do not care about losing money and want your Onyx instantly without world-hopping, you can spam-sell your entire stack to one world. Because the value drops to 1 Tokkul per rune very quickly, you will need over 100,000+ Chaos Runes to reach 260,000 Tokkul. Avoid this method at all costs.
Step-by-Step Guide to Getting Your Onyx
- Acquire your Runes: Buy your Chaos Runes from magic shops (like Baba Yaga on Lunar Isle or the Magic Guild in Yanille) in packs, or buy them directly from the Grand Exchange if you are a main account.
- Equip Karamja Gloves: Make sure you are wearing your Karamja Gloves 1 (or higher) before entering the inner city.
- Travel to Mor Ul Rek: Use a Fairy Ring (code B•L•P) or a Combat Bracelet to teleport to the TzHaar Fight Cave, then walk to the rune shop.
- Change Right-Click Settings: Set your inventory left-click or right-click option to “Sell 50” to make the process smoother.
- Execute the Rotation: Open the shop, sell 10 or 50 Chaos Runes, close the shop interface, hop to the next world, and repeat until your Tokkul counter hits 260,000.
- Buy the Onyx: Walk over to the TzHaar-Mej-Yol Gem Store and purchase your Uncut Onyx.
Calculate Your Exact Stack Instantly
If you already have a random mix of Chaos Runes, Death Runes, or baseline Tokkul sitting in your bank from a recent Fight Caves fire cape attempt, doing the manual math can be tedious.
To find out exactly how many more runes you need to buy based on current live Grand Exchange prices, plug your inventory values into our custom OSRS Tokkul Calculator. It will break down your remaining time, cost, and optimal hopping route automatically!
Conclusion
Getting your first Uncut Onyx is a massive milestone for any OSRS account, marking a huge upgrade to your combat and training gear. While buying, hopping, and selling tens of thousands of Chaos Runes might seem like a tedious grind, taking those extra minutes to grab your Karamja Gloves and pacing your sales will save you millions of GP (or hours of rune farming) in the long run.
Keep an eye on the shop stock, stick to your hopping rhythm, and you’ll have your Amulet of Fury or Zenyte jewelry in no time. Happy grinding, and may your RNG in the rest of Gielinor be blessed!