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Diamond Source San Antonio 4C's Guide to Diamonds




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Build a ring from scratch with our certified, yet affordable collection of diamonds in San Antonio

Diamond Source has a large selection of loose diamonds in San Antonio for you to view. We can supply any size, color or cut that you desire at true wholesale prices. We have access to thousands of diamonds which are independently certified by trained gemologist, from our stonecutters and can be shipped within 24 hours. At Diamond Source, you’ll not only find the diamonds you need to make the perfect ring for her, but you’ll receive the best possible service and value for your money. Let us help you find the bigger, better diamond on your budget. We invite you to browse through our inventory, and if you see a diamond you would like to view, please contact us by email, phone or visit us at our showroom.
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No Diamond is exactly the same, Diamond Source can help you assess the quality of any diamond

The GIA has created the global standards for measuring a diamonds quality. These standards are commonly known as the 4 C’s. Understanding the 4C’s helps both you and Diamond Source communicate the diamond you are looking to purchase.
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Cut

A diamonds beautiful sparkle depends on its cut more than anything else. A diamond’s cut is crucial to the stone’s final beauty and value. And of all the diamond 4Cs, it is the most complex and technically difficult to analyze.

Clarity

There are six categories on the diamond clarity scale, some are sub-divided, creating a total of 11 grades
  • Flawless (FL) 
No inclusions and no blemishes visible under 10x magnification
  • Internally Flawless (IF) 
No inclusions visible under 10x magnification (but may contain external blemishes)
  • Very, Very Slightly Included (VVS1 and VVS2)
 Inclusions so slight they are difficult for a skilled grader to see under 10x magnification
  • Very Slightly Included (VS1 and VS2)
 Inclusions are observed with effort under 10x magnification, but can be characterized as minor
  • Slightly Included (SI1 and SI2)
 Inclusions are noticeable under 10x magnification Included (I1, I2, and I3)
Inclusions are obvious under 10x magnification which may affect transparency and brilliance. Most of a diamond’s inclusions and blemishes are too small to be seen by the naked eye.
  • Included (I1, I2 and I3) Inclusions are obvious under 10x magnification and are sometimes eye visible.
Expert and accurate assessment is crucial to grading diamond clarity and entail its value.

Color

The diamond color evaluation of most gem-quality diamonds is based on the absence of color. Many of these color distinctions are so subtle that they are invisible to the untrained eye; however, these distinctions make a very big difference in diamond quality and price.

Carat

Diamond carat weight is the measurement of how much a diamond weighs. A metric “carat” is defined as 200 milligrams.