Coleção: Rough & Uncut Gemstones
Directly sourced, naturally authentic
The majority of our rough gemstones are sourced directly, or just one supply chain away, from nearby mines in Thailand, Laos, and Cambodia. We also occasionally offer carefully selected pieces from other gem regions, including Africa. By collaborating exclusively with long-term, verified partners, we ensure authenticity, ethical standards, and exceptional quality.
Short supply chains, lasting value
Our approach reduces supply chain length, supports sustainability, and allows us to offer competitive prices per gram. Each stone is unique, carrying within it the raw beauty of its origin – and sometimes, treasures whose value may surpass expectations.
Rough stones at Siam Gems Club
From single pieces to larger parcels, our rough gems open a world of creative possibilities for collectors, cutters, and designers alike.
Tailored offers and special arrangements
If you are interested in purchasing rough stones in larger quantities or specific lots, please don’t hesitate to contact us. We are happy to provide tailored offers and special arrangements to meet your needs.
Gemological insights
Rough and uncut gemstones are valued for their natural state and potential. Their true beauty often emerges through expert cutting and polishing. To learn more, visit the Gemological Institute of America (GIA).
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Turquoise to Blue Apatite Lot Rough - 2,075 ct (R22)
Preço normal $1,037.50 USDPreço normalPreço unitário / porPreço promocional $1,037.50 USD(≈ $1037.5 USD) -
Purple-Pink Ruby Rough - 1,400 ct (R61)
Preço normal $560.00 USDPreço normalPreço unitário / porPreço promocional $560.00 USD(≈ $560.0 USD) -
Pink-Violet Ruby Rough - 1,600 ct (R62)
Preço normal $640.00 USDPreço normalPreço unitário / porPreço promocional $640.00 USD(≈ $640.0 USD) -
Green Sapphire Rough - 237 ct (R63)
Preço normal $144.00 USDPreço normalPreço unitário / porPreço promocional $144.00 USD(≈ $144.0 USD) -
Green Sapphire Rough - 289 ct (R64)
Preço normal $175.00 USDPreço normalPreço unitário / porPreço promocional $175.00 USD(≈ $175.0 USD) -
Pink-Purplish Ruby Lot Rough - 800 ct (R66)
Preço normal $480.00 USDPreço normalPreço unitário / porPreço promocional $480.00 USD(≈ $480.0 USD) -
Purplish-Pink Ruby Lot Rough - 595 ct (R67)
Preço normal $238.00 USDPreço normalPreço unitário / porPreço promocional $238.00 USD(≈ $238.0 USD) -
Pink to Lilac Ruby Lot Rough - 6,900 ct (R65)
Preço normal $1,380.00 USDPreço normalPreço unitário / porPreço promocional $1,380.00 USD(≈ $1380.0 USD) -
Pale Pink Ruby Rough - 695 ct (R69)
Preço normal $278.00 USDPreço normalPreço unitário / porPreço promocional $278.00 USD(≈ $278.0 USD) -
Pink Ruby Rough in moss-green host rock - 405 ct (R68)
Preço normal $243.00 USDPreço normalPreço unitário / porPreço promocional $243.00 USD(≈ $243.0 USD) -
Lavender-Pink-Lilac Ruby Rough - 725 Ct (R70)
Preço normal $290.00 USDPreço normalPreço unitário / porPreço promocional $290.00 USD(≈ $290.0 USD) -
Pink-Purplish Ruby Rough - 1,210 Ct (R71)
Preço normal $242.00 USDPreço normalPreço unitário / porPreço promocional $242.00 USD(≈ $242.0 USD) -
Purplish-Pink to Lilac Ruby Rough – 1,300 ct (R72)
Preço normal $520.00 USDPreço normalPreço unitário / porPreço promocional $520.00 USD(≈ $520.0 USD) -
Grey-Blue Chalcedony Rough - 575 ct (R60)
Preço normal $37.00 USDPreço normalPreço unitário / porPreço promocional $37.00 USD(≈ $37.0 USD) -
Grey-Blue Chalcedony Rough - 1,300 ct (R58)
Preço normal $84.00 USDPreço normalPreço unitário / porPreço promocional $84.00 USD(≈ $84.0 USD) -
Yellow to Gold Sapphire Rough - 700 ct (R16/1) - Sold in 20g units
Preço normal $3,000.00 USDPreço normalPreço unitário / porPreço promocional $3,000.00 USD(≈ $3000.0 USD)















