Introduction
There are three species of gemstone dragons - Dragonstone dragons, Onyx dragons, and Hydrix dragons.
⬥ To kill them off-task in gemstone mines, you need to buy KC through these following uncut gems:
• 
- Allows 2 kills each
• 
- Allows 400 kills each
• 
- Allows 4000 kills each
⬥ If killing them in the wilderness 
or Dragonkin Laboratory 
, payment is not needed.
⬥ Due to their low profitability but relatively high 
EXP rates, they should be only be killed on-task for slayer EXP and heavily improved rare drop rates.
• All presets hence assume 
buffs are active on the Anachronia helmet stand.
• For active methods, ranged 
is preferred with 
and 
• For AFK methods 
with 
is better, although methods are still available.
⬥ Besides autos and standard dragonbreath attacks, each species of gemstone dragon has a special attack which fires out a set of gemstone spikes, creating a 3x3 area centered around the player after a delay, dealing high damage. Additionally, gemstone spikes have the following effects:
⬥ Dragonstone Dragon: Halves the duration of antifires and super antifires.
• This does NOT work only on extended super antifires.
⬥ Onyx Dragon: Heals the dragon by up to 5000 LP.
⬥ Hydrix Dragon: Drains adrenaline to 0 and halves adrenaline gain for 15 seconds.
Desirable Drops
⬥ Besides the Draconic Visage (1/10000) which most dragons drop, different dragons drop the different pieces of Gemstone Armour (T80 hybrid, unaugmentable) required for the Karamja slayer log:
• Dragonstone Dragon: Gemstone Gloves and Boots
• Onyx Dragon: Gemstone Helmet and Greaves
• Hydrix Dragon: Gemstone Hauberk
⬥ All Gemstone dragons have a static droprate for Armour pieces at a rate of 1/2500 off-task and 1/1000 on-task.
• For Dragonstone and Onyx Dragons this is then 50% chance to be either of the pieces they can drop.
Location and How to Get There
⬥ Gemstone dragons are located below the Shilo Village Mines. A ladder leads to the cavern beside Kelhar, which requires Karamja Gloves 3 or above to access.
• The teleport option on Karamja Gloves 3 or higher is the fastest way to access the cavern.
⬥ They are also found in the Wilderness Dungeon just south of . The quickest way to get there is by teleporting to using the Slayer Cape 
, walk south and down the ladder.
Useful Items and Unlocks
Dragonstone dragons
Dragonstone dragons are the easiest of the 3 and should only be done for the slayer log or if under levelled. If under geared or not confident, using extended super antifires is recommended to take less damage from dragonbreath, especially if AFKing.
Stats
⬥ level: 95
⬥ 
XP per kill: 2781.4 + 917.8 HP
⬥ XP per kill: 1448.4
⬥ Optimal kills per hour - ~278 , ~400 
⬥ Optimal XP hour - 402k , 580k
⬥ Optimal XP hour with 
- 603k , 870k
Method and Where to stand
⬥ Place cannon 
on yellow tile as shown below and stand under the cannon.
⬥ Pray 
and 
/
/ Method and Where to stand
⬥ It is ideal to kill them one at a time, using an 
to cycle through 2 spawns in the south eastern corner of the cavern.
⬥ Pray 
and t95/t99 curse for the respective style.
⬥ Place cannon on yellow tile as shown below, and stand on the red tile so you avoid the special attacks.
Presets and Relics
Action Bars
⬥ Ranged
⬥ Magic
⬥ Necromancy
Video Examples
AFK Magic - Don't stand in position of this video if you want to avoid specs.
Onyx dragons
Onyx dragons generally aren't done much unless for the slayer log, as players at this level should simply boost to kill Hydrix dragons actively for faster exp.
Stats
⬥ level: 98
⬥ XP per kill: 2500 + 825 
⬥ XP per kill: 1858.8
⬥ Optimal kills per hour - ~270 (AFK), ~400 (AFK)
⬥ Optimal XP hour - 500k , 744k
⬥ ⬥ Optimal XP hour with - 750k , 1.115m
Where to stand
⬥ Place cannon on yellow tile as shown below if using . If using , use instead.
Method: AFK Magic/Necro /
Magic
Stand two tiles south of the , ensure , 
and 
are active at all times.
Pray and 
/
Necromancy
Ensure , and 
are active at all times
Pray and /
T90 Deathwarden can be substituted for T95 gear if not owned, but will receive ~10% less kph.
Presets and Relics
Action Bars
⬥ Magic
⬥ Necromancy
Video Examples
Hydrix dragons
Hydrix dragons is relevant to players desiring slayer log completion and high exp rates. They provide more than twice the exp per kill of Onyx dragons and is considered one of the highest exp/hr tasks in the game if done actively.
Stats
⬥ level: 101
⬥ XP per kill: 3000 + 990 HP
⬥ XP per kill: 4768.8
⬥ Optimal kills per hour - >350 , ~300
⬥ Optimal XP hour - 1.66m , 1.43m
⬥ Optimal XP hour with - 2.5m , 2.15m
Presets and Relics
Method: Active Ranged
Use to the low accuracy of 
and the existence of , is the best style for slaying hydrix dragons actively.
⬥ Place the and position as shown in the picture below. Place your 
around the area the player is positioned in the picture.
⬥ The main dragons you'll be chinning are the ones in the top right (yellow box) which your will aggro and align for you. The dragons shown in the blue and red boxes can be opportunistically chinned if you manage to lure them correctly.
• Use 
, 
, 
and 
with prioritised in that order to quickly AoE pairs down.
• Chin Deadshot 
can be used when out of
• Use 
and 
to quickly kill dragons single target.
⬥ Pay close attention to the dragons' specs especially if you have more than 2 attacking you.
Method and Where to stand
⬥ Place cannon on yellow tile as shown below
⬥ Pray and /
⬥ Ensure 
and are active at all times
Method and Where to stand
⬥ 
buff, and 
buff can help increase KPH in the wilderness.
⬥ Place oldak coil on yellow tile and stand on the red tile as shown below.
⬥ Pray and /
⬥ ⬥ Ensure and are active at all times
Action Bars
⬥ Necromancy
⬥ Magic
Video Examples