Flawless Square Gems (AKA FS or FSGs) are the 8th level rank of [[gem]], and the highest that can be found from monster or chest dropsin Diablo 3. This is the only type of gem that's found on Inferno (pre-[[Patch 1.0.4Marquise]], Square gems also are dropped in InfernoReaper of Souls), and has thus become the default level of gem when players speak about gem finds or crafting costs.

For instance, it costs 27 Flawless Square Gems During most of [[Diablo 3 Vanilla]] this was the only type of gem that dropped on the [[Inferno]] difficulty. (Prior to create [[Patch 1 .0.4]], [[Star GemSquare]]gems also dropped in Inferno). That During much of D3v, Flawless Squares were the default gem rank and currency, and were the base level players spoke of when describing crafting costs. In [[D3v2]] Flawless Squares are still the highest level gem that can drop, but with the old difficulty tiers removed this gem begins to drop around level 55, and is widely used for item socketing (especially to add stats to armor sockets) as most players find it the best value; higher only gem seen above that level gems cost a great deal more for only slight improvements in stats.

Though Flawless Square gems are found in Inferno With the closure of the Auction House and the later portions advent of Hell difficulty[[D3v2]], they this gem is the highest that can also be crafted up from Square found, and all higher gemsmust be created by upgrading flawless squares via crafting. * 2 Square See the main [[gems (same type) + 100 ]] article for all crafting gold + 1 tome of Jewelcrafting = 1 Flawless Square gemand material costs.

To It is quite inexpensive to upgrade [[Square]] gems to the next level, the Perfect SquareFlawless Squares:* 3 Flawless * 2 Square gems (same type) + 30,000 100 gold + 3 Tomes of Secret = 1 Perfect Flawless Square gem.

The stats for all types of Flawless Square Gems, as of [[Patch 1.0.7]]. ([[Rubies ]] in weapons did less damage in earlier versions of the game.)

| Flawless Square Amethyst

| Flawless SquareEmerald

A full list of [[gems]] in by ascending order: # Chipped# Flawed# Regular# Flawless# Perfect # Radiant # Square # Flawless Square# Perfect Square # Radiant Square # Star # Flawless Star# Perfect Star # Radiant Star # Marquise Gem (Added in [[Patch 1rank.0.7]].)