01
Colour
Look at hue, tone and saturation in more than one lighting environment.
A more informed eye
The gemstone
guide.
A starting point for asking useful questions about a coloured gemstone.
02
Clarity
Inclusions are part of many natural gemstones. Consider their type, location and effect.
03
Cut
Shape describes the outline; cut quality also includes proportion, symmetry and polish.
04
Carat
Carat measures weight. Two stones of the same weight can look different in size.
05
Character
Look at the combination of qualities that makes a stone distinctive.
06
Condition
Ask about durability, surface condition, treatments and appropriate care.
07
Confidence
Request clear identification and supporting documentation for important claims.
Frequently asked questions.
Are the images actual JAVAAZ stock?+
No. This site uses concept imagery and attributed educational specimen photography. Contact JAVAAZ for information about specific available stones.
Can I enquire about a raw gemstone?+
Yes. Email contact@javaaz.com or use the enquiry page to describe the stone, colour or project you have in mind.
Does origin determine quality?+
Origin is one part of a gemstone’s context. Appearance, treatments, condition and documentation must be considered for the individual stone.
Are treatments always visible?+
No. Some treatments need specialist laboratory testing to identify. Ask for appropriate disclosure and reports.
Further reading: GIA Gem Encyclopedia ↗