SET Lv.13
Ancient Gem Set: Stats, Set Bonus & How to Get古代の宝石装備セット
The Ancient Gem Set is a level 13 accessory set in Core Keeper made of 2 pieces: Ancient Gem Ring, Ancient Gem Necklace. Set bonus: 2 pieces – +13% of mining damage added as melee damage. Best for melee builds, ranking #6 of 70 sets for damage.
Ancient Gem Set pieces and stats (Lv.20)
The Ancient Gem Set has 2 pieces. Values are for Lv.20 (fully upgraded); the level column shows the level each piece starts at.
| Slot | Item | Base Lv | Armor | Max health | Effects (Lv.20) |
|---|---|---|---|---|---|
| Ring |  Ancient Gem Ring |
13 | — | — |
|
| Necklace |  Ancient Gem Necklace |
11 | — | — |
|
Ancient Gem set bonus: how many pieces do you need?
Wearing the required number of pieces from the same set at once adds an extra effect (the set bonus). The Ancient Gem Set gives:
- 2 pieces: +13% of mining damage added as melee damage
Ancient Gem Set total stats
Totals with every piece equipped, including the set bonus.
| Effect | Base level | Lv.20 |
|---|---|---|
| Critical hit damage | +17% critical hit damage | +24% critical hit damage |
| Mining damage | +62 mining damage | +133 mining damage |
| Melee attack speed | +3.3% melee attack speed | +5.1% melee attack speed |
| Mining speed | +3.3% mining speed | +5.1% mining speed |
| Of mining damage added as melee damage | +13% of mining damage added as melee damage | +13% of mining damage added as melee damage |
Is the Ancient Gem Set good? Rating by build
For each build we take the strongest loadout (gear and food), swap in the Ancient Gem Set pieces (with the set bonus) and calculate the damage. Damage is relative to the strongest loadout (= 100), and the rank is out of all 70 sets.
| Build | Damage (best = 100) | Rank | Best set for this build |
|---|---|---|---|
| Melee | 76.0 | #6 | Core Commander Armor Set |
| Ranged | 70.5 | #19 | Mold Set |
| Magic | 72.8 | #11 | Arcane Monk Armor Set |
| Summoner | 51.9 | #14 | Chieftain Armor Set |
The Ancient Gem Set fits melee builds best (#6 of all sets). It is a lower-level set, so even if it is strong when you get it, you will usually upgrade it or move to a higher-level set later in the game.
Damage assumes endgame gear (Lv.20) and skills at level 100. Defense (armor, health) is not included; compare the totals above for that. The damage model is this site's own estimate, not an official formula.
How to get the Ancient Gem Set (drops, chests)
How to get Ancient Gem Ring
- Mining walls: Archeologist Wall Loot – 5.3% per try
Ancient Gem Ring: all sources and drop chances →
How to get Ancient Gem Necklace
- Mining walls: Archeologist Wall Loot – 5.3% per try
Ancient Gem Set upgrade cost (to Lv.20) and reinforcement
Each piece can be upgraded to Lv.20 at the Upgrade Station with Ancient Coins and materials. Reinforcing at the Salvage and Repair Station doubles durability and raises effect values by about 15%.
| Item | Upgrade cost Lv.13→20 | Reinforcement materials | Durability |
|---|---|---|---|
| Ancient Gem Ring |
 Ancient Coin×3,039  Galaxite Bar×25  Solarite Bar×126  Jungle Emerald×1  Ocean Sapphire×1  Desert Ruby×1  Pandorium Bar×38  Relucite Bar×41  Corrupted Alloy×20 |
— | — |
| Ancient Gem Necklace |
Ancient Coin×3,608  Octarine Bar×20 Galaxite Bar×48 Solarite Bar×126 Jungle Emerald×1 Ocean Sapphire×1 Desert Ruby×1 Pandorium Bar×38 Relucite Bar×41 Corrupted Alloy×20 |
— | — |
| All pieces | Ancient Coin×6,647 Galaxite Bar×73 Solarite Bar×252 Jungle Emerald×2 Ocean Sapphire×2 Desert Ruby×2 Pandorium Bar×76 Relucite Bar×82 Corrupted Alloy×40 Octarine Bar×20 | ||
Sets of a similar level to compare
| Set | Lv | Set bonus | Best build |
|---|---|---|---|
| Skull Set | 9 | 3 pcs: All nearby enemies burn for 45 damage every other sec | Summoner (#8) |
| Moonbell Set | 10 | 2 pcs: +11% of damage taken is absorbed by your mana pool | Magic (#3) |
| Mold Set | 11 | 2 pcs: Immune to mold infection | Ranged (#1) |
| Nomad Set | 14 | 2 pcs: +13% less food drained when running | Melee (#3) |
| Flame Set | 15 | 2 pcs: +27% critical hit damage against burning targets | Melee (#16) |
| Warped Set | 15 | 2 pcs: Recover 1% of your magic barrier as mana every sec | Magic (#9) |
Ancient Gem Set FAQ
Q. Where do I get the Ancient Gem Set?
Ancient Gem Ring: Archeologist Wall Loot (mining walls). Ancient Gem Necklace: Archeologist Wall Loot (mining walls). Details are in How to get.
Q. How many pieces do I need for the Ancient Gem set bonus?
2 pieces give "+13% of mining damage added as melee damage" (2 pieces in total).
Q. Which build is the Ancient Gem Set best for?
It fits melee builds best (#6 of all sets). See the rating by build for the numbers.
Q. How much does it cost to upgrade the Ancient Gem Set to Lv.20?
Upgrading every piece from Lv.13 to Lv.20 takes 6,647 Ancient Coins in total, plus materials (upgrade cost).
Unless a note on the page says otherwise, numbers are read from the game files of Core Keeper 1.3.0.6 (prefabs, configuration files, drop tables and the game's program) and calculated by this site, including upgraded (per-level) values, sell prices and mana costs. Names and descriptions are the game's official English text. Only reinforcing materials, minion and pet attacks and some food values are based on the Core Keeper Wiki (Fandom) data (CC BY-SA 3.0). Core Keeper and its images are © Pugstorm. This is an unofficial fan site.