On average a 1 modifier halves the value of a gem while a 1 modifier doubles it. Gemstones are weighed in carats with most weighing only one or two carats. Base value x 50 000. Size of small human skull 31 000 carats. Carat is size but then a perfectly clear diamond is better than one with imperfections.
The cheapest ornamental stones such as obsidian are worth around 10 gp per carat while valuable gems such as diamond and ruby are worth around 200 gp per carat. Value number of gems this size that will fit in one cubic foot of space. On average the gemstone randomizer will increase gem values significantly. Pages 133 134 in the 5e dungeon master s guide has tables for gemstones worth 10gp 50 gp 100 gp 500 gp 1000 gp and 5000 gp. Your gemstone can produce a dim light to illuminate dark places.
For the small gems 1 8 1 100 base value would make more sense. This would maintain the progression of smaller stones being worth less. 5e gems search search all forums search this forum search this thread tools jump to forum. Keep in mind these are the worth of the items not necessarily what they could be sold for after all your honest merchant needs to mark them up for their own profit. Gemstones are typically cut into polyhedral shapes.
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A gem carved intricately or uniquely colored is also worth more. 3 dia large fist size 4 856 carats. Dropping it to 1 100 makes it worth about 1 5th per carat. The four cs of gem value. An exceedingly rare few weigh as much as a thousand carats.All gems have a gem weapon stored within their gemstone that may be summoned in the same way that other races may draw regular weapons. The randomizer uses the base value progression from the form below when modifying gems. Color clarity cut carat. At 1 10bv roughly twice as much per carat as 6 gems. This means positive modifiers have significantly greater impact on gem values.
This means positive modifiers have significantly greater impact on gem values. All gems have a gem weapon stored within their gemstone that may be summoned in the same way that other races may draw regular weapons. A gem carved intricately or uniquely colored is also worth more. For the small gems 1 8 1 100 base value would make more sense. The cheapest ornamental stones such as obsidian are worth around 10 gp per carat while valuable gems such as diamond and ruby are worth around 200 gp per carat.
At 1 10bv roughly twice as much per carat as 6 gems. On average a 1 modifier halves the value of a gem while a 1 modifier doubles it.
