Gem Slimes Only

There are total 32 maps, in 34 rank-seed combinations, about the GS-only.

Ruin GS-only is better than Ice GS-only because all support monsters in Ruin GS-only can be "Mercy"-ed, but only one in Ice.

Ruin
Support Monster Mercy user's Lv
Boa Bishop 47
Freaky Tiki 84
Alarmour 84
Cyber Spider 95
Ice
Support Monster Mercy user's Lv
Grrrgoyle 95
Wight Emperor Cannot be Mercy-ed
Grim Reaper Cannot be Mercy-ed
Cannibelle Cannot be Mercy-ed

Bronze Crypt of Glee Lv.56
Location: Snowberia (44) / Eastern Coffinwell (17)
Map: Ruins
Monster Rank: 8~11
Boss: Equinox @ B16
Chest: S1 A4 B1
Details: GS-only @ B15.

Emerald Crypt of Bliss Lv.57
Location: Angel Falls (02) / Bloomingdale (2F)
Map: Ice
Monster Rank: 8~10
Boss: Shogum @ B13
Chest: A3 B5 C4
Details: GS-only @ B10 (2m 26s). The quickest Ice-GS map.

Diamond Lair of Doubt Lv.59
Location: Newid Isle (1F) / Urdus Marshland (4C) / Djust Desert (35)
Map: Ruins
Monster Rank: 8~11
Boss: Nemean @ B14
Chest: S1 A4 B5
Details: GS-only @ B13.

Emerald Snowhall of Hurt Lv.64
Location: Mt Ulzuun (60) / Eastern Stornway (88)
Map: Ice
Monster Rank: 7~10
Boss: Atlas @ B14
Chest: A2 B4 C5
Details: GS-only @ B13.

Platinum World of Glee Lv.64 (Discoverer: … etc. / ugoiti … etc. / mitikou … etc.)
Location: Wyrmtail (76) / Zere (0D) / Newid Isle (8C)
Map: Ruins
Monster Rank: 9~12
Boss: Nemean @ B15
Chest: S2 A2 B4
Details: GS-only @ B9 (1m 58s).

Emerald Snowhall of Hurt Lv.67
Location: Mt Ulzuun (60) / Eastern Stornway (88)
Map: Ice
Monster Rank: 7~10
Boss: Hammibal @ B14
Chest: A2 B4 C5
Details: GS-only @ B13.

Diamond Path of Dolour Lv.68
Location: Eastern Coffinwell (18) / Angel Falls (01)
Map: Ruins
Monster Rank: 8~11
Boss: Elucid @ B16
Chest: A3 B1 C6
Details: GS-only @ B14 (3m 55s).

Ruby Ruins of Regret Lv.68
Location: Angel Falls (02) / Wyrmneck (81)
Map: Ruins
Monster Rank: 8~11
Boss: @ B17
Chest: S2 A6 B1
Details: GS-only @ B13.

Ruby Maze of Dolour Lv.69
Location: Newid Isle (20) / Snowberia (48)
Map: Ruins
Monster Rank: 9~12
Boss: Shogum @ B15
Chest: S1 A4 B2
Details: GS-only @ B12.

Silver Crypt of Dread Lv.69
Location: Eastern Coffinwell (16)
Map: Ice
Monster Rank: 7~10
Boss: Hammibal @ B14
Chest: B2 C3 D1
Details: GS-only @ B13.

Silver Tundra of Regret Lv.69
Location: Eastern Coffinwell (16)
Map: Ice
Monster Rank: 7~10
Boss: Sir S @ B16
Chest: B2 C4 D3
Details: GS-only @ B13.

Emerald Snowhall of Hurt Lv.70
Location: Mt Ulzuun (60) / Eastern Stornway (88)
Map: Ice
Monster Rank: 7~10
Boss: Fowleye @ B14
Chest: A2 B4 C5
Details: GS-only @ B13.

Diamond Maze of Bliss Lv.71
Location: Snowberia (47) / Wyrmtail (74)
Map: Ruins
Monster Rank: 9~12
Boss: Shogum @ B16
Chest: S1 A1 B3
Details: GS-only @ B12 (3m 25s).

Diamond Glacier of Bane Lv.72 (Discoverer: … etc. / yousuke … etc.)
Location: Western Stornway (06) / Pluvi Isle (33)
Map: Ice
Monster Rank: 7~10
Boss: Sir S @ B15
Chest: B5 C5 D5
Details: GS-only @ B14.

Emerald Ruins of Gloom Lv.72 (Discoverer: … etc. / eruna … etc. / … etc.)
Location: Wyrmwing (79) / Khaalag Coast (62) / Lonely Coast (8F)
Map: Ruins
Monster Rank: 9~12
Boss: Atlas @ B14
Chest: S1 A2 B4
Details: GS-only @ B9 (1m 30s). The quickest GS-only map.

Diamond World of Bliss Lv.74
Location: Snowberia (47) / Wyrmtail (74)
Map: Ruins
Monster Rank: 9~12
Boss: Shogum @ B17
Chest: S2 A1 B3
Details: GS-only @ B12 (3m 25s).

Emerald Crypt of Doubt Lv.74
Location: Newid Isle (8C) / Wyrmtail (75)
Map: Ruins
Monster Rank: 8~11
Boss: Sir S @ B14
Chest: S1 A6 B4
Details: GS-only @ B13. Easily endless farming 2 B chests @ B3 with Chest Timer. (2,200,000 Gold/h)

Sapphire Maze of Dolour Lv.74
Location: Wormwood Canyon (72) / Angel Falls (04)
Map: Ruins
Monster Rank: 9~12
Boss: Shogum @ B16
Chest: S2 A2 B5
Details: GS-only @ B12.

Diamond Glacier of Hurt Lv.75
Location: Western Stornway (06) / Pluvi Isle (33)
Map: Ice
Monster Rank: 7~10
Boss: Atlas @ B15
Chest: B5 C5 D5
Details: GS-only @ B14.

Gold Snowhall of Regret Lv.77 (Discoverer: … etc. / (Gulfstorm75), serika … etc. / Hero … etc.)
Location: Western Coffinwell (19) / Angel Falls (02) / Bloomingdale (2F)
Map: Ice
Monster Rank: 7~10
Boss: Fowleye @ B16
Chest: A1 B4 C3
Details: GS-only @ B14.
Remarks: A few American/Europe players have the "RSmit's GS map" discovered by "Hero".

Silver Tundra of Dread Lv.78
Location: Eastern Coffinwell (16)
Map: Ice
Monster Rank: 7~10
Boss: Fowleye @ B16
Chest: B2 C4 D3
Details: GS-only @ B13.

Steel Crypt of Ruin Lv.79
Location: Eastern Wormwood (6B) / Iluugazar Plains (54) / Wyrmneck (81)
Map: Ruins
Monster Rank: 8~11
Boss: Excalipurr @ B14
Chest: A2 B7 C4
Details: GS-only @ B13.

Gold World of Woe Lv.80
Location: Eastern Coffinwell (18) / Angel Falls (01)
Map: Ice
Monster Rank: 8~11
Boss: Sir S @ B16
Chest: S2 A1 B5
Details: GS-only @ B12

Silver Ruins of Dolour Lv.80
Location: Urdus Marshland (4F) / Wyrmtail (7C) / Ondor Cliffs (65)
Map: Ruins
Monster Rank: 8~11
Boss: Sir S @ B17
Chest: A4 B3 C1
Details: GS-only @ B15

Emerald Maze of Gloom Lv.81 (Discoverer: … etc. / … etc. / Shaelyn, riyuuta … etc.)
Location: Wyrmwing (79) / Khaalag Coast (62) / Lonely Coast (8F)
Map: Ruins
Monster Rank: 9~12
Boss: Atlas @ B17
Chest: S1 A3 B4
Details: GS-only @ B9 (1m 30s). The quickest GS-only map.
Remarks: A few American players (especially for NYC Nintendo World Store Tag-mode Tuesday group) have this map discovered by "Shaelyn".

Emerald Snowhall of Hurt Lv.81 (Discoverer: … etc. / kaien, ziyatuku … etc.)
Location: Angel Falls (02) / Bloomingdale (2F)
Map: Ice
Monster Rank: 8~10
Boss: Greygnarl @ B12
Chest: A3 B4 C4
Details: GS-only @ B10 (2m 26s). The quickest Ice-GS map & Greygnarl enhanced.
Remarks: A few American/Europe players have the "Taiwan GreyGold Map" discovered by "ziyatuku".

Steel Ruins of Ruin Lv.82
Location: Eastern Wormwood (6B) / Iluugazar Plains (54) / Wyrmneck (81)
Map: Ruins
Monster Rank: 8~11
Boss: Excalipurr @ B15
Chest: A2 B7 C5
Details: GS-only @ B13.

Platinum Ruins of Dread Lv.83
Location: Bloomingdale (2D) / Mt Ulzuun (5A) / Snowberian Coast (43)
Map: Ruins
Monster Rank: 8~11
Boss: Hammibal @ B17
Chest: S2 A4 B2
Details: GS-only @ B16

Diamond Crypt of Gloom Lv.86
Location: The Gittish Empire (85) / Western Coffinwell (1C)
Map: Ruins
Monster Rank: 9~12
Boss: Atlas @ B16
Chest: S2 A1 B9
Details: GS-only @ B10 (1m 53s).

Diamond Maze of Bane Lv.86
Location: Snowberia (47) / Wyrmtail (74)
Map: Ruins
Monster Rank: 9~12
Boss: Hammibal @ B16
Chest: S1 A1 B3
Details: GS-only @ B12 (3m 25s).

Diamond Path of Dread Lv.86
Location: Newid Isle (1F) / Urdus Marshland (4C) / Djust Desert (35)
Map: Ruins
Monster Rank: 8~11
Boss: Fowleye @ B16
Chest: S1 A5 B5
Details: GS-only @ B13.

Ruby World of Evil Lv.89 (Discoverer: satoru … etc. / … etc.)
Location: Newid Isle (8B) / Wyrmtail (74)
Map: Ruins
Monster Rank: 9~12
Boss: Excalipurr @ B17
Chest: S2 A1 B11
Details: GS-only @ B9 (1m 41s). There's a chamber inside B5.