You can shop online -- link below -- for the synthetic blue diamond that you want, by giving them all the parameters required to price this diamond.
Using this site, be aware that you can buy a stone that is...
... a "round brilliant up to about .45 carat in VS, SI and I quality levels. You may request to be put on a waiting list for a larger diamond, but please be aware it may take years for a blue diamond 1 carat or larger."
Today on Blue Nile, you can purchase a one carat SI1 diamond and pay about US$4,759; and a one carat VVS1 diamond and pay about US$12,252.
The value of a natural blue diamond can vary greatly depending on factors such as size, color intensity, clarity, and cut. Blue diamonds are typically more valuable than white diamonds, with prices ranging from thousands to millions of dollars per carat. Rare and high-quality natural blue diamonds can command premium prices in the market.
Seventy-five/one hundredths of a carat in gemstone weight equals three quarters of 0.00705479239 ounces, which is the ounce weight of one carat. In grams, a .75 carat diamond weighs three quarters of 0.2 grams. Can you do the math?
The value of a flawless 0.75 carat diamond can vary greatly depending on factors such as cut quality, color, and clarity. However, as a rough estimate, you can expect to pay anywhere from $2,000 to $6,000 for a high-quality flawless 0.75 carat diamond.
In 1995, the price of a 0.75 carat diamond would have varied based on multiple factors like color, cut, and clarity, as well as market conditions at that time. It's best to consult historical data or a diamond expert to get an accurate estimate.
Today on Blue Nile, you can purchase a one carat SI1 diamond and pay about US$4,759; and a one carat VVS1 diamond and pay about US$12,252.
First, you'd have to find such a diamond. This size and colour are uncommon, blue being one of the rarest diamond colours. Recently (21Oct2010), the Bulgari Blue Diamond, "...a triangular 10.95 carat Fancy Vivid blue diamond, (the largest such blue diamond of this cut ever offered at auction)," sold for $15.7 million or $1.4 million per carat. (From The Telegraph, London.)
250 carat Diamond- uncertain amount as can be auctioned; very few diamonds of this size25 carat Diamond- $1 million to $2 million; for a lower quality stone2.5 carat Diamond - $5,000~$8,000Another AnswerYou can buy a 2.5 carat diamond today on Blue Nile and spend from US$12,000 to US$16,000.Also, a 15 carat diamond is available on Blue Nile today for just over US1,000,000.
You can purchase a diamond of this carat weight today at Blue Nile and spend between US$9,701 and US$27,984, depending on the colour and clarity that you want.
You can buy a 6.01 carat Flawless diamond today on Blue Nile, with an F colour and pay just over US$423,000.
Today, on Blue Nile, you can buy a diamond of about this carat weight and pay between US$509,719 and US$1,376,169, depending on the colour, clarity, cut and exact carat weight that you want.
Today, on Blue Nile, the smallest diamond weighs .23 carats and is available for US$270.
Today at Blue Nile, you can spend between US$8,462 and US$49,775 for a diamond of this carat weight, depending on the clarity, colour and cut that you want.
Any diamond is worth what someone will pay you for it. You can purchase a marquis diamond of this carat weight -- half a carat -- today on Blue Nile and spend between US$516 and US$2,935, depending on the clarity and colour that you want.
You can buy a diamond of this carat weight today on Blue Nile and spend between US$520 and US$4,187, depending on the clarity, colour and cut that you want.
You can buy one of this colour and carat weight today on Blue Nile for between US$3,000 and US$4,000.
You can buy a diamond of about this carat weight today on Blue Nile and pay between US$4,846 and US$60,820, depending on the cut, its quality, clarity, colour and exact carat weight that you want.