A 1.5 GIA certified princess diamond in D color and VS1 clarity is worth about $11,900 and a 1.5 GIA diamond in F color and VVS1 clarity is worth about $9,900. It all depends on what your budget is.
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.
One carat (1.00 carat) weighs about .02 grams, and what you want is an example of something that weighs .15 carats. Any US paper bill (currency) weighs one gram. So if you cut the bill into fifths, you'd have a strip of currency that weighs one carat. Then you'd cut the strip again into 20 equal pieces. Three of the remaining pieces will weigh .15 carats.
The auction record price per carat for ruby is the sale of an 8.62-carat cushion-cut 'pigeon's-blood red' unheated Burmese stone: $3,637,480 ($425,000 per carat). Purchased by Laurence Graff at Christie's. Set in a Bulgari rectangular-shaped diamond bombé mount, ring size 3¼, 18k gold. (15 February 2006, St. Moritz Palace Hotel, Geneva: Lot 352/Sale 1334)
For the benefit of those who do not know what a karat is, the karat (a.k.a. carat) is a measure of the purity of gold alloys. There is no such thing as 48 carat gold simply because carat is a percentage, with 24 being pretty much 100 % purity (you cannot have 200% pure gold, it makes no sense). The most common carats used for gold in bullion, jewelery making and by goldsmiths are:* 24 carat (millesimal fineness 999) * 22 carat (millesimal fineness 916) * 20 carat (millesimal fineness 833) * 18 carat (millesimal fineness 750) * 15 carat (millesimal fineness 625) * 14 carat (millesimal fineness 585) * 10 carat (millesimal fineness 417) * 9 carat (millesimal fineness 375) * 8 carat (millesimal fineness 333) * 1 carat (millesimal fineness 042) Millesimal fineness is a system of denoting the purity of platinum, gold and silver alloys by parts per thousand of pure metal by mass in the alloy. For example, an alloy containing 75% gold is denoted as "750".
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These two measurements are not directly related. If the diamond is cut in a round, brilliant cut, the carat weight may be between .15 and .20 carats. If the diamond is of a different cut, then the carat weight will be different.
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.
The closest we can come to finding such a diamond for sale online is for a 14.03 carat diamond, currently priced at US$781.608. This is an F colour, round cut with clarity of SI1. This calculates to US$55,710 per carat. Can you do the math for a 15 carat diamond? If you want to purchase another gem stone, your price would be different. Also, the metal, design and setting would be an additional expense.
The millimeter size of a diamond of this weight varies, depending on the cut. If the gem is round cut, its measurement at the girdle will be between 16.3 mm (15 carats) and 17.6 mm (20 carats).
The strict answer is that that a 15 carat stone weighs 15 carats. You probably want to know how big the stone looks. Use the link, below, to get a visual idea of about how large a stone might look depending on its carat weight, and its cut. If the 15 carat stone is a brilliant cut, the stone would be about 16.3 MM across at the girdle.
A 15 carat diamond will usually cost well over $100,000, depending on the quality. The price can even go up to $500,000 or more, with a good quality cut.
1 carat can be up to $22,000. Diamonds can be up to $1,000,000 or more. The price varies greatly, and depends mostly on these four specifications: cut, clarity, colour and carat (weight of a jewel).
Cubic Zircons are often meant to mimic diamonds. Since CZs have a more dense specific gravity than diamond -- Wikipedia indicates at least 1.6 times that of diamond. This means that carat weight would be less for the CZ to equal the carat weight of a diamond, both being equal in size. Using the number 15 indicates that you're looking for a large stone. In this case, you may want to go by measurement and not by carat weight. For example, a 15 carat, round diamond measures about 16.3mm across the diameter of the girdle. Presenting the data in reverse, a 15 carat CZ will weigh 1.6 times more than a 15 carat diamond: so the equivalent size diamond in weight will be less than 15 carats. Determining the carat weight of a CZ which is 16.3mm across at the girdle can be made by a jeweler who can weigh the CZ stone and give you its equivalent carat weight.
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.
A 15/100s carat diamond is on the small side for a single diamond; you may be able to purchase one for US$100 - US$500, depending on its colour and clarity.
If the diamond is a round brilliant cut, it's slightly larger than 16.3MM, which is the measurement of a diamond weighing 15 carats.
Shopping online today, the closest we can come to this weight in this cut is 12.14 carats. This is for a D color with a clarity rating of VS2. The price is US$985,454 or a per-carat price of US$81,174. Can you do the math for the weight of stone you want to purchase?