GIA & IGS CERTIFIED GEMOLOGISTS ON STAFF  ·  PRIVATE APPRAISALS BY APPOINTMENT  ·  (209) 229-2752

The Catalog

Six materials. One standard of disclosure.

Every listing below reflects our own grading notes, cross-checked against independent lab reports where applicable. Pricing and availability change often — reach out for current stock.

Diamond

Diamonds

Graded on the 4Cs — cut, color, clarity and carat — with GIA reports available on request for stones 0.30ct and above.

22 Pieces Available

Ruby

Rubies

Corundum rated 9 on the Mohs scale. We prize saturated "pigeon blood" red and always disclose heat treatment status.

23 Pieces Available

Emerald

Emeralds

Beryl prized for color over clarity — natural inclusions ("jardin") are expected, and any oiling is stated plainly.

10 Pieces Available

Sapphire

Sapphires

Corundum in every color but red. Unheated stones are marked clearly and priced at a premium over treated material.

16 Pieces Available

Gold

Gold

24k, 22k and 18k gold available as bullion, jewelry-ready stock and raw specimens, priced against the daily spot rate.

10 Pieces Available

Silver Ore & Minerals

Silver Ore & Minerals

Raw silver ore and curated mineral specimens for collectors, educators and fellow rockhounds — including uncut rough.

21 Pieces Available

Browse The Vault

Filter by material.

Diamond — piece 1Diamond No. 01
Diamond — piece 2Diamond No. 02
Diamond — piece 3Diamond No. 03
Diamond — piece 4Diamond No. 04
Diamond — piece 5Diamond No. 05
Diamond — piece 6Diamond No. 06
Diamond — piece 7Diamond No. 07
Diamond — piece 8Diamond No. 08
Diamond — piece 9Diamond No. 09
Diamond — piece 10Diamond No. 10
Diamond — piece 11Diamond No. 11
Diamond — piece 12Diamond No. 12
Diamond — piece 13Diamond No. 13
Diamond — piece 14Diamond No. 14
Diamond — piece 15Diamond No. 15
Diamond — piece 16Diamond No. 16
Diamond — piece 17Diamond No. 17
Diamond — piece 18Diamond No. 18
Diamond — piece 19Diamond No. 19
Diamond — piece 20Diamond No. 20
Diamond — piece 21Diamond No. 21
Diamond — piece 22Diamond No. 22
Ruby — piece 1Ruby No. 01
Ruby — piece 2Ruby No. 02
Ruby — piece 3Ruby No. 03
Ruby — piece 4Ruby No. 04
Ruby — piece 5Ruby No. 05
Ruby — piece 6Ruby No. 06
Ruby — piece 7Ruby No. 07
Ruby — piece 8Ruby No. 08
Ruby — piece 9Ruby No. 09
Ruby — piece 10Ruby No. 10
Ruby — piece 11Ruby No. 11
Ruby — piece 12Ruby No. 12
Ruby — piece 13Ruby No. 13
Ruby — piece 14Ruby No. 14
Ruby — piece 15Ruby No. 15
Ruby — piece 16Ruby No. 16
Ruby — piece 17Ruby No. 17
Ruby — piece 18Ruby No. 18
Ruby — piece 19Ruby No. 19
Ruby — piece 20Ruby No. 20
Ruby — piece 21Ruby No. 21
Ruby — piece 22Ruby No. 22
Ruby, Rough — piece 1Ruby, Rough No. 01
Emerald — piece 1Emerald No. 01
Emerald — piece 2Emerald No. 02
Emerald — piece 3Emerald No. 03
Emerald — piece 4Emerald No. 04
Emerald — piece 5Emerald No. 05
Emerald — piece 6Emerald No. 06
Emerald — piece 7Emerald No. 07
Emerald — piece 8Emerald No. 08
Emerald — piece 9Emerald No. 09
Emerald — piece 10Emerald No. 10
Sapphire — piece 1Sapphire No. 01
Sapphire — piece 2Sapphire No. 02
Sapphire — piece 3Sapphire No. 03
Sapphire — piece 4Sapphire No. 04
Sapphire — piece 5Sapphire No. 05
Sapphire — piece 6Sapphire No. 06
Sapphire — piece 7Sapphire No. 07
Sapphire — piece 8Sapphire No. 08
Sapphire — piece 9Sapphire No. 09
Sapphire — piece 10Sapphire No. 10
Sapphire — piece 11Sapphire No. 11
Sapphire — piece 12Sapphire No. 12
Sapphire — piece 13Sapphire No. 13
Sapphire — piece 14Sapphire No. 14
Sapphire — piece 15Sapphire No. 15
Sapphire — piece 16Sapphire No. 16
Gold — piece 1Gold No. 01
Gold — piece 2Gold No. 02
Gold — piece 3Gold No. 03
Gold — piece 4Gold No. 04
Gold — piece 5Gold No. 05
Gold — piece 6Gold No. 06
Gold — piece 7Gold No. 07
Gold — piece 8Gold No. 08
Gold — piece 9Gold No. 09
Gold — piece 10Gold No. 10
Gold in Stone — piece 1Gold in Stone No. 01
Gold in Stone — piece 2Gold in Stone No. 02
Gold in Stone — piece 3Gold in Stone No. 03
Gold in Stone — piece 4Gold in Stone No. 04
Gold in Stone — piece 5Gold in Stone No. 05
Gold in Stone — piece 6Gold in Stone No. 06
Gold in Stone — piece 7Gold in Stone No. 07
Gold in Stone — piece 8Gold in Stone No. 08
Gold in Stone — piece 9Gold in Stone No. 09
Gold in Stone — piece 10Gold in Stone No. 10
Silver Ore — piece 1Silver Ore No. 01
Silver Ore — piece 2Silver Ore No. 02
Silver Ore — piece 3Silver Ore No. 03
Silver Ore — piece 4Silver Ore No. 04
Silver Ore — piece 5Silver Ore No. 05
Silver Ore — piece 6Silver Ore No. 06
Silver Ore — piece 7Silver Ore No. 07
Silver Ore — piece 8Silver Ore No. 08
Silver Ore — piece 9Silver Ore No. 09
Silver Ore — piece 10Silver Ore No. 10
Silver Ore — piece 11Silver Ore No. 11

Buying With Confidence

Not sure which stone is right? We'll walk you through it.

Every purchase includes a written grading summary, care guidance, and a direct line to the gemologist who evaluated the piece. For larger acquisitions, we're glad to arrange an in-person or video walkthrough before you commit.

Ask About A Piece

01

Tell us your budget, occasion or the piece you have in mind.

02

We shortlist matching stones with full grading notes attached.

03

Review in person, by video, or via an independent lab of your choice.

04

Secure, insured delivery — or pickup at our Modesto showroom.