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How to calculate rate of a gem

This topic contains 5 replies, has 4 voices, and was last updated by Profile photo of raghu raghu 6 months, 2 weeks ago.

Viewing 6 posts - 1 through 6 (of 6 total)
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  • #199895
    Profile photo of raghu

    Dear everyone.
    Suppose a gem costs 1000£ per carat . Will the rate of its 4 carat gem be 4*4*1000
    how to calculate 5.25 carat Kashmir origin blue sapphire rate from the gem price guide if it is natural unheated .

    Profile photo of tomi-jc

    Hello Raghu! If you have a stone that weights 5.25 cts and the price is 1000 per carat then you just multiply the 5.25 with 1000 which gives you the total price of the gemstone, 5250

    Profile photo of sydp

    Hi, in regard to good quality Sapphire Ruby and other gems, price does depend on size of the gem for instance

    do not take these prices literally THIS IS JUST AN EXAMPLE as I do not know what price per carat Kashmir blue is???
    Kashmir blue sapphire top quality cut gem

    up to 1 ct $1000
    next 2 cts $2000 per carat
    next 2 Cts could be $3000 to $4000 per carat
    top quality gemstone does not stay the same rate from 1 to 5 carats

    Profile photo of raghu

    Thank you Tomi-jC and Syd-prickett.
    What I wanted to know is that in some respected institutions in the trade have stated that
    rate= carat*carat*price.
    how is this to be understood.They are clea that if carat weight is 2carat than price will be 4*price of the stone.
    Thanks in advance.

    Profile photo of lesliechang

    Determining the quality of a gemstone involves what jewelers refer to as the “four C’s.” They are as follows:

    4.Carat Weight

    Profile photo of raghu

    Thank you sir, for your reply.

Viewing 6 posts - 1 through 6 (of 6 total)

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