Gems are collectibles in The Sims 3. They are found in their raw form and can be cut by sending them to a gem cutters or by using the gem cutter machine.^[TS3:SN]

Raw

Gemstones are found in the rough, around neighborhoods and on adventures, as well as with Buydebug spawners.

Types of Gem

	Gem	Rarity	Min Value	Max Value	Location	EP	Photo subject [TS3:WA]
	Blue Topaz	Common	9	21	Base neighborhood	&BG	✓
	Smoky Quartz	Common	15	25	Base neighborhood	&BG	—
	Emerald	Common	20	30	Base neighborhood	&BG	—
	Ruby	Common	25	35	Base neighborhood	&BG	—
	Yellow Sapphire	Uncommon	35	60	Base neighborhood	&BG	—
	Tanzanite	Uncommon	65	95	Base neighborhood	&BG	—
	Diamond	Rare	100	200	Base neighborhood	&BG	✓
	Luminorious Gem	Rare	150	300	Base neighborhood	&BG	✓
	Rainbow Gem	Rare	450	700	Base neighborhood	&BG	✓
	Pink Diamond[1]	Rare	1,200	1,650	Base neighborhood	&BG	✓
	Amethyst	Common	18	24	Champs Les Sims	&EP01	—
	Citrine	Uncommon	35	53		&EP01	—
	Opal	Rare	350	520		&EP01	✓
	Alabaster	Common	9	55	Al Simhara	&EP01	—
	Turquoise	Uncommon	60	70		&EP01	—
	Tiberium	Rare	75	125		&EP01	✓
	Soulpeace	Rare	1,450	2,100		&EP01	—
	Lapis Lazuli	Common	12	30	Shang Simla	&EP01	—
	Jade	Rare	120	240		&EP01	—
	Quartz	Common	10	18	Champs Les Sims, Al Simhara, Shang Simla	&EP01	✓
	Geode	Uncommon	15	120		&EP01	✓
	Septarian Nodule	Rare	50	350		&EP01	—
	Fluorite	Rare	300	500	Sculpting Station	&EP02	—
	Smithsonite	Uncommon	31	71	Base neighborhood	&EP03	—
	Vampire's Eye	Rare	200	375			—
	Sunstone	Rare	330	720	Base neighborhood	&EP07	—
	Moonstone	Rare	375	855			—
	Bloodstone	Uncommon	35	105			—

Tiberium

Tiberium is an extraordinarily rare and potentially very valuable gem. It represents the Tiberium crystal in Command And Conquer: Tiberium Wars. The raw rock is worth §75-125. In the inventory (either as ore or cut) it will give a negative "Visceroidal Nausea" moodlet (-25 mood).

Tiberium can be cut into 2 different forms

• Small Spire Cut (§6,500)
• Heart-Shaped Cut (§1,000)

No matter what the cut is, a non-large cut of Tiberium will grow into a Large Spire Cut within a day, giving it a value of around §40,000 or higher in some cases. Large cuts of Tiberium gems do not morph into Large Spire cuts.

Obtaining

Uncut gems periodically spawn in set locations around the world, but they can be also obtained in many other ways.

All of these methods can produce any gem in the game, except where stated.

• Exploring a mausoleum.
• Rummaging through a trash can (any gem, value determined by the owner's net worth).
• Looting tombs. (Cut Blue Topaz, Emerald, Ruby, Yellow Sapphire, Tanzanite, Luminorious Gem, Rainbow Gem, Pink Diamond, Geode, Septarian Nodule. Can be any valid cut for the gem type, including gem dust.) ^[TS3:WA]
  • Looting tombs in Shang Simla (cut Lapis Lazuli, Jade). ^[TS3:WA]
  • Looting tombs in Champs Les Sims (cut Citrine, Amethyst, Opal, Tiberium). ^[TS3:WA]
  • Looting tombs in Al Simhara (cut Alabaster, Turquoise, Soulpeace). ^[TS3:WA]
• Excavating dig sites (Blue Topaz, Smoky Quartz, Emerald, Ruby, Yellow Sapphire, Tanzanite, Diamond, Luminorious Gem, Rainbow Gem, Pink Diamond). ^[TS3:WA]
  • Excavating dig sites in Shang Simla (Jade, Lapis Lazuli). ^[TS3:WA]
  • Excavating dig sites in Champs Les Sims (Citrine, Amethyst, Opal, Tiberium). ^[TS3:WA]
  • Excavating dig sites in Al Simhara (Alabaster, Turquoise, Soulpeace). ^[TS3:WA]
• Breaking Space Rock blocks after having completed the Timber Terminator challenge. ^[TS3:WA]
• Transfiguring using Carter's Display Case - XL Edition. ^[TS3:WA]
• Buying from relic traders. ^[TS3:WA]
• Breaking a stone sculpture while sculpting (any except Vampire's Eye, Smithsonite, Bloodstone, Sunstone and Moonstone). ^[TS3:A]
• Using a miner. ^[TS3:A]
• Exploring tunnels created by a miner. ^[TS3:A]
• Buying from the consignment store. ^[TS3:A]
• Hunting for collectibles as a dog. ^[TS3:P]
• Digging up dig spots as a dog.^[TS3:P]
• Traveling through a dimensional gate. ^[TS3:ST]
• Casting a Conversion Ritual as a witch (any gem, higher chance of Bloodstone, Sunstone and Moonstone). ^[TS3:SN]
• Hunting for collectibles as a werewolf. ^[TS3:SN]
• Using the claw machine (any cut gem worth §200 or less). ^[TS3:SN]
• Having fortune told at the gypsy wagon. ^[TS3:SN]
• Traveling to space in the Galaxa Space Car. ^[TS3:S]
• Transmuting gems as an alien (can convert a gem into another, more valuable type). ^[TS3:S]
• Analysing minerals (Blue Topaz only). ^[TS3:UL]
• Causing a meteor shower with the group science project. ^[TS3:UL]
• Snorkeling (Blue Topaz, Smoky Quartz, Ruby, Emerald). ^[TS3:IP]
• Exploring an underwater cave (Emerald, Ruby, Yellow Sapphire, Tanzanite, Diamond, Luminorious Gem, Rainbow Gem, Pink Diamond). ^[TS3:IP]
• Opening treasure chests around Isla Paradiso. Each chest has predetermined contents that do not respawn.^[TS3:IP]
  • Davy Jones' Locker (Oval Cut Ruby and Emerald Cut Emerald).
  • Mermaid Grotto (5 uncut Diamonds and a Brilliant Cut Tanzanite).
  • Pearl's Deep (Marquis Cut Luminorious Gem, uncut Yellow Sapphire, uncut Ruby, uncut Emerald and a Crystal Ball Cut Rainbow Gem).
  • Plumbob Island (Large Plumbob Cut Rainbow Gem).
  • Plunder Cove (Blue Topaz, Tanzanite, Emerald, Smoky Quartz, Yellow Sapphire and Ruby)
• Using the meteor magnet (Geode, Smithsonite, Sunstone, Moonstone). ^[TS3:ITF]
• Exploring a geyser rift in Dystopian Oasis Landing. ^[TS3:ITF]
• Digging up a rainbow knoll in Utopian Oasis Landing (Rainbow Gem only). ^[TS3:ITF]
• Summoning treasure with a green dragon (Blue Topaz, Smoky Quartz, Emerald, Ruby, Yellow Sapphire, Tanzanite, Diamond, Luminorious Gem, Rainbow Gem, Pink Diamond). ^[Store]
• Wishing for wealth at a wishing well. ^[Store]
• Entering the Not So Routine Machine's Dreamscape. ^[Store]

Cuts

Gems may be sent to the gem-cutter by mail and cut into the following cuts. Starting with the emerald cut, Sims gain cuts by cutting increasing numbers of gems.

Geode & Septarian Nodules only have polished split and heart-shaped cut, while Tiberium only has Spire and Heart-Shaped cut.

Sometimes the gem cutters will return an uncut gem, saying that it is actually a Mysterious Mr. Gnome in disguise.

The table lists both when you break even with a particular cut, and when a cut begins yielding better profit than the previous cut. For example, if a gem is worth §47, an oval cut provides §70 while the Pear cut yields §82. Factoring in the cost of the gem and the cost of cutting the gem, the Oval cut provides a §3 profit while the Pear cut yields no profit. The Pear cut does not start providing more profit than the Oval cut until the original worth is §60, as listed below.

With The Sims 3: Supernatural, Sims can purchase the Gem-U-Cut machine for a one-time investment of §975. It does not cost anything to cut a gem with the machine, meaning that the machine can eventually pay for itself. Sims gain access to new cuts when using the machine in the same way they would when sending gems to the gem-cutter via mail.

	Cut	Cost	Worth Change	Break Even	Range for Best Profit	Requirement	EP
	Emerald	§10	125%	§40	§40	None	&BG
	Oval	§20	150%	§40	§40-60	4 cuts	&BG
	Pear	§35	175%	§47	§60	+4 (8 total) cuts	&BG
	Plumbob	§50	200%	§50	§60-83	+8 (16 total) cuts	&BG
	Marquis	§75	230%	§58	N/A	+14 (30 total) cuts	&BG
	Crystal Ball	§100	260%	§63	§84-166	+15 (45 total) cuts	&BG
	Brilliant	§250	350%	§100	§167-300(-233[TS3:SN])	+15 (60 total) cuts	&BG
	Heart-Shaped[1]	§1000	500%	§250	§600+(N/A[TS3:SN])	Collect 10 different types of gems	&BG
	Polished Split	§45	240%	§32	§32-367	Geode & Septarian Nodules available, transfiguration for others	&EP01
	Spire	§6500	6900%	—	—	Tiberium available, transfiguration for others	&EP01
	Skull	—	1000%	—	—	Available only via transfiguration	&EP01
	Star	§400	400%	§134	§300-600	+15 (75 total) cuts	&EP01
	Sculptor's Egg	§175	300%	§88	N/A	Available to Sims with 5 points of sculpting skill	&EP02
	Dust	§5	25%	N/A	N/A	None (Also as a byproduct when using the Gem cutter)	&EP07
	Sun	§600	500%	§150	§234+	+25 (100 total) cuts	&EP07
	Moon	§600	500%	§150	§234+	+25 (100 total) cuts	&EP07

Notes:

• The star-cut will be enabled after installing patch 26 or The Sims 3: Pets, otherwise it will be hidden from normal gameplay and cannot be produced by players but they can be found in tombs.
• A glitch that may be caused by testingcheatsenabled true is that when you are returning from any world causes all gems to become blue topaz in color. This can be fixed by restarting, although the glitched gems will stay blue.

Gallery

Sample of gem cuts

All gems in all cuts of the base game

All gems from all Expansion packs in all cuts

All cuts for all gems

References