THE GEMHOOD LIBRARY
Gemstone encyclopedia
Learn about remarkable natural stones through factual guides, care advice, and their cultural and historical significance.
Rose Quartz
Discover its jewellery history, colours and traditional symbolism.
Read guide → Corundum (Al₂O₃)Ruby
Ruby is the red variety of corundum. Its rich red appearance makes it a recognised choice for statement rings, pendants and special-occasion jewellery. Hardness helps explain its r...
Read guide → Corundum (Al₂O₃)Sapphire
Sapphire is a gem variety of corundum, often associated with blue but also found in other colours. Its hardness makes it an enduring jewellery material, although the security of a...
Read guide → Banded chalcedonySardonyx
Discover its jewellery history, colours and traditional symbolism.
Read guide → Spinel group (MgAl₂O₄)Spinel
Discover its jewellery history, colours and traditional symbolism.
Read guide → Variety of zoisiteTanzanite
Discover its jewellery history, colours and traditional symbolism.
Read guide → GEMSTONETiger's Eye
Discover its jewellery history, colours and traditional symbolism.
Read guide → Aluminium fluorosilicateTopaz
Discover its jewellery history, colours and traditional symbolism.
Read guide → Complex borosilicate groupTourmaline
Tourmaline is a gem group offering a remarkably broad selection of colours. Pink, green and multi-colour examples are popular in jewellery, but individual stones can vary in treatm...
Read guide → Hydrated copper aluminium phosphateTurquoise
Turquoise has an opaque blue-to-green appearance and a long decorative history. Jewellery pieces can include natural matrix patterns or stabilised material. Sellers should identify...
Read guide → Zirconium silicateZircon
Discover its jewellery history, colours and traditional symbolism.
Read guide →Traditional and spiritual associations are presented for cultural interest, not as medical facts.