Did you know??
A Carat is a Carat is A Carat.....Right??? WRONG!!
All gemstones are not created equal - that is to say When you look at some Gemstones - compared side by side with each other - they can be the same cut - the same mm size - and the same shape - but they will not WEIGH the same!!
The density of each individual gemstone determines the appearance -
for instance a 1 carat round cut Diamond will look much smaller than 1 carat of a round cut Opal. - This is because the Diamond is a much denser gemstone that the Opal - and it takes less of a diamond to equal a carat that it does an Opal - Therefore 1 carat of Opal will appear to be much bigger in size. An Opal's natural properties make it a light gemstone - in fact, it contains trapped water, which gives the Opal it's natural Color Play
This Genuine Pink Opal Ring is 31 carats - but it appears MUCH larger because it is less dense - this stone is the size of an Easter Egg!
also Opal is the Birthstone for October!
A Carat is a Carat is A Carat.....Right??? WRONG!!
All gemstones are not created equal - that is to say When you look at some Gemstones - compared side by side with each other - they can be the same cut - the same mm size - and the same shape - but they will not WEIGH the same!!
The density of each individual gemstone determines the appearance -
for instance a 1 carat round cut Diamond will look much smaller than 1 carat of a round cut Opal. - This is because the Diamond is a much denser gemstone that the Opal - and it takes less of a diamond to equal a carat that it does an Opal - Therefore 1 carat of Opal will appear to be much bigger in size. An Opal's natural properties make it a light gemstone - in fact, it contains trapped water, which gives the Opal it's natural Color Play
This Genuine Pink Opal Ring is 31 carats - but it appears MUCH larger because it is less dense - this stone is the size of an Easter Egg!
also Opal is the Birthstone for October!
In simpler terms - a 1 carat round Diamond is typically between 5mm in 6mm - whereas a 1 carat round Opal is typically 9mm - 10mm - much bigger in appearance, but still 1 carat!! It weighs so much less than the diamond - that it takes MORE Opal to equal a carat!
In Gemstones - this is called "Specific Gravity"
Specific gravity
Gem materials vary greatly in density -- amber may float in salt water (density near that of water), while hematite is more than five times the density of water.
This is why two different gemstones may have the same size but different weights and vice versa -- a one carat round brilliant diamond of typical proportions will be approximately 6.5 mm in diameter, while a round brilliant ruby of the same size (6.5 mm in diameter) and proportions will weigh approximately 1.55 carats. Generally, gemologists refer to specific gravity, or relative density -- the ratio of the density of a gemstone relative to that of water.
This is why two different gemstones may have the same size but different weights and vice versa -- a one carat round brilliant diamond of typical proportions will be approximately 6.5 mm in diameter, while a round brilliant ruby of the same size (6.5 mm in diameter) and proportions will weigh approximately 1.55 carats. Generally, gemologists refer to specific gravity, or relative density -- the ratio of the density of a gemstone relative to that of water.
http://stores.ebay.com/JEWELRY-AND-GIFTS-BY-ALICE-AND-ANN
Great information thanks!
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