The insider secrets of saving money when buying a certified diamond.
In most cases, the higher the carat weight, the higher the price. When evaluating carat weight, it is important to understand the term, CTW, or carat total weight. If a diamond is labeled 1 CTW (carat total weight) that generally means there are a number of small stones which make up a combined total weight of 1 ct. (carat). View Carat Size
Now a 1 ct diamond, refers to the weight of one stone. A ring that has a 1 ct stone will be worth considerably more than a ring that has a 1 CTW of the same quality. It is helpful to think about diamonds in terms of the per-carat cost. In order to calculate the total cost of a diamond, this formula is helpful.
Carat Weight x Per-Carat Cost = Total Cost of the Stone
For example a 1.05 ct Round, 'G' color, 'VS2' clarity is $7,200 per carat, so 1.05 x $7,200 = $7,560.
Looking to save some money on the cost of that diamond? A great money-saving strategy is to buy your diamond just under certain key weight thresholds also known as 'Buying Shy'. For example, if you want a 1 ct diamond, you could buy a .92 ct diamond and save a few hundred to more than $1,000 (depending on the color and clarity). View Carat Size
In the 'Rapaport Diamond Report' (also know as the 'Rap Price') a .92 ct Round (6.3 mm), 'G' color, 'VS2' clarity is listed as $5,700 per carat or $5,244 for the diamond (Carat Weight x Per-Carat Cost = Total Cost of the Stone) and a 1 ct Round (6.6 mm), 'G' color, 'VS2' clarity is listed as $7,200 per carat or $7,200 for the diamond - the difference is $1,956. You would save almost $2,000 on buying a diamond with a very minimal difference in appearance i.e., the thickness of a business card! Below are a few key thresholds:
The cut quality of a diamond can affect the price by as much as 30%-40%. To determine the cut quality of a diamond, you should always rely on an independent laboratory such as GIA or AGS to evaluate the stone and issue a 'Cut' grade. Below is a chart that compares the 'Cut' grade from both GIA and AGS. We recommend only purchasing diamonds with a GIA Cut grade of 'Good' or better or AGS Cut grade of '4' or better.
As an example of how 'Cut' can effect price, a 1 ct, 'F' color, 'VS2' clarity, with a GIA 'Cut' grade of 'Excellent' was recently listed for $11,733 and another diamond with the same exact weight, color and clarity, with a GIA 'Cut' grade of 'Good' was recently listed for $8,479, a difference of $3,254! That is the impact a quality 'Cut' can have on price.
Since GIA or AGS Labs use different scales and methods, this represents DiamondWave's opinion as to the equivalence of the two grading systems.
Clarity refers to the amount of internal and external flaws on the diamond itself. These flaws are usually called inclusions or blemishes. Clearly, the fewer the flaws in the stone, the higher the price will be. However, a flawless diamond is quite rare and very costly. To see how Clarity affects cost, take a look at the price of a 1 ct diamond, 'F color from IF (Internally Flawless) to I2 (Imperfect).
|Scale||Flawless - Internally Flawless||Very Very Slightly Imperfect||Very Slightly Imperfect||Slightly Imperfect||Imperfect|
As you can see, Clarity has a great affect on the cost of a diamond. For engagement rings, we recommend SI1 or better when selecting your diamond. View our Clarity section.
*Street Prices based on 2010 market prices and are subject to change. Diamonds are a commodity and prices change as the market changes.
Most diamonds are untreated and their brilliance, color and beauty are completely natural. When a diamond is treated, the quality of the stone is artificially improved by changing one or several of its characteristics. Such treatments generally target color and purity, however it is important to understand that various treatments will impact the price and marketability of a stone.
The main advantage to buying a treated diamond is price. Diamonds that are treated are normally discounted by 25-30% or more. The following is a summary of various diamond treatments.
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