Identify and explore gemstones using a structured scientific database.

No gemstone has a stronger reputation for durability than diamond, and that reputation is grounded in crystal structure rather than marketing. Its exceptional hardness, high lustre, and ability to return crisp light make it central to both jewellery and industrial applications.

Ruby is defined by red corundum, but not every red stone carries the same authority of colour. The most sought-after examples combine vivid saturation with enough transparency to let the red remain bright rather than murky.

Sapphire covers far more than blue, yet the gem remains associated with crisp colour, durability, and a polished, highly wearable finish. Its place in jewellery owes as much to resilience as to appearance.

Emerald stands apart from other green gems because colour carries more weight than absolute clarity. Even stones with visible inclusions can be highly regarded when the green is vivid, lively, and unmistakably within the emerald range.

Opal is less about crystal form than about light. Depending on structure, it may show a soft inner haze, bold flashes of spectral colour, or a calm body tone that changes character as the stone is turned in the hand.

Tanzanite is one of the few gemstones whose identity is closely tied to a single modern locality. Its blue-to-violet colour and pleochroic character give it an instantly contemporary profile among transparent jewellery stones.

Often best in pendants, earrings, collector cuts, and occasional-wear rings that showcase colour without unnecessary risk.

Best for jewellery and display pieces where colour, pattern, or internal effect matters more than maximum wear resistance.

A good fit for collectors and jewellers looking for visible character without needing the highest hardness category.

A good fit for collectors and jewellers looking for visible character without needing the highest hardness category.

Best for jewellery and display pieces where colour, pattern, or internal effect matters more than maximum wear resistance.

Particularly useful where durability matters alongside colour, clarity, or optical performance.

Cabochons, beads, and carvings where saturated blue colour is preferred over transparency.

A good fit for collectors and jewellers looking for visible character without needing the highest hardness category.

Used in faceted gems (variety-dependent), cabochons, and collector specimens.

Used in fine faceted jewelry as a natural high-fire gemstone.

Used in beads, cabochons, carvings, and decorative pieces.

Used in rings, pendants, and earrings.

Used in rings, pendants, and high-end faceted jewelry.

Yellow Jasper is used chiefly for Earth-tone jewellery and carving stock.. In the trade it is commonly fashioned as cabochons, beads, carvings, and polished ornamental pieces, with Mohs hardness 6.75 guiding suitable jewellery applications.

Used in faceted collector gems and protected jewellery settings.

Used in rings, earrings, and high-clarity accent stones.