important is colour-price is about from 3000 up to 30000usd for 10ct sapphire
The value of a diamond depends on its cut, its clarity, its colour and its carat weight. A local jeweler can give you the answer you want.
A diamond is worth whatever someone will pay you for it. Depends on the diamond. A diamond's value is determined by carat, color, cut and clarity. There are many grades of diamonds from industrial grade to Flawless, gem quality.
Any were from US$ 1 to US$ 5000 and more depending upon the colour, size and clarity. The cost of sapphire gems varies depending on their color, clarity, size, cut, and overall quality. As of 2000, the cost of 1 carat (0.2 g) of a typical uncut, gem quality sapphire was about $1,600 USD. Significant sapphire deposits are found in Eastern Australia, Southeast Asia, and Sri Lanka. Sapphire and rubies are often found together in the same area, but one gem is usually more abundant.
I inherited a Rubie ring with one center Rubie about 4 carat and two 1 carat rubies on either side. the stones are extremely clear and was estimated to be worth over 100,000.00 in the early sixties. not sure what it's worth today. Are diamonds carat weight and size about the same as rubies?
In my opinion I think it is worth about $690,0000
The value of a diamond depends on its cut, its clarity, its colour and its carat weight. A local jeweler can give you the answer you want.
A flawless stone of this size is extremely rare. Take your diamond to a certified gemologist, who will certify that the diamond is indeed flawless, and who will help you describe the stone otherwise: its colour and cut will also affect its price.
Every diamond is valued according -- not only to its clarity and colour, as above, but must include its cut and carat weight in addition.
A diamond is worth whatever someone will pay you for it. Depends on the diamond. A diamond's value is determined by carat, color, cut and clarity. There are many grades of diamonds from industrial grade to Flawless, gem quality.
A carat of diamonds is worth whatever someone will pay you for the carat.
Your diamond may be a black diamond, if it's a diamond. There is a black diamond scale which ranks stones with AAA grades. Diamonds that are flawless are labeled IF for internally flawless, or FL for flawless. This stone could also be something other than a diamond. Only a gemologist can give you the value, based on its cut and determination of how the stone achieved its colour.
If you could buy one today from Blue Nile, you'd probably pay between US$50,000 and US$100,000 for such a stone. However, a diamond is worth whatever someone will pay you for it.
A 12 carat yellow diamond, depending on clarity, can range from $150,000 (grade 1) to about $8,500,002 (Grade 7).
You can replace this diamond today by buying one from Blue Nile and pay less than US$1,000 for such a diamond.
The largest Flawless, D Colour diamond for sale today on Blue Nile weighs 7.65 carats and sells for US$1,167,550 or US$152,621 per carat. (You can calculate your 10-carat estimate from this per carat value.) You may be able to find a different 'perfect' and differently coloured diamond at an auction house that weighs exactly 10 carats. The diamond could be a Deep Fancy yellow, blue, pink, or other colour. There, the price will be established by the bidders in the room at the time of sale. A deep fancy coloured diamond that is flawless and large will probably cost you more per carat than the D colour diamond, above.
no
Depending on the cut and exact carat weight, you can purchase such a diamond today from Blue Nile and spend anywhere between US$9,500 and US$13,100. If you already own such a stone, best practices dictate that you pay for a certificate from a certified gemologist to document this stone. Then as you try to sell it, you have the proof you need that this is indeed a valuable diamond. Finally, anything is only 'worth' what someone will pay you for it.