Through its arm the GIA Laboratory, GIA provides diamond grading services to describe the characteristics of loose diamonds. GIA issues two types of reports, the more complete being the Diamond Grading Report (a briefer and less expensive version is called a Diamond Dossier). The Diamond Grading Report identifies the key characteristics of a diamond which can be used to both identify the diamond and determine its value. The reports contain a number of measurements, including of carat weight as well as a diagram of where and what types of inclusions are located in the diamond. This type of report is now offered by competitors to GIA, although GIA's reports are widely considered to be the strictest, and therefore most reputable available. Diamond grading reports are now demanded by most consumers purchasing diamonds over a certain size, typically for over 0.5 carat (100 mg), and almost always for over 1.0 carat (200 mg), and are considered an important tool in guaranteeing that a diamond is accurately represented to a potential buyer.

Source: http://en.wikipedia.org/wiki/Gemological_Institute_of_America

The Trust Guard Business Verified Seal is the fastest, most effective way to let [our] customers know that [we] are who [we] say [we] are. By displaying the Business Verified seal, [our] customers instantly know that [our] business information has been verified by Trust Guard. If [you] [want] to find out how to contact [us], [you] can either drag [your] mouse over the seal for instant confirmation, or [you] can click on the seal for a more detailed description of the verification process.

Source: http://www.trust-guard.com/Why-Choose-Trust-Guard-s/2.htm

A buySAFE Seal on a merchant's Website or marketplace item listing indicates that the merchant has:

• Passed the rigorous buySAFE Certification Process to ensure they are trustworthy and reliable;
• agreed to allow buySAFE to continuously monitor their performance in every transaction; and
• qualified to guarantee their transactions with a bond from buySAFE and its surety partners — Liberty Mutual, Travelers, and ACE USA.

Source: http://www.buysafe.com/about_us/overview.html

Companies that are invited to join the BBB as Accredited Businesses must meet the BBB Standards for Trust and maintain all requirements of BBB Accreditation, including payment of annual dues. Businesses that agree to the BBB dispute resolution procedures may identify themselves as Accredited. If Accredited Businesses fail to meet the BBB's Standards, their accreditation is revoked. BBB Accredited Businesses make a commitment to conduct their business affairs with reliability and integrity, in accordance with BBB Standards and guidelines. The Better Business Bureau name and torch logo can be used by accredited businesses. The logo use by accredited business is only allowed on printed material; to use the logo on a website the business needs to join the BBOnline Accredited Business Seal program.

Source: http://en.wikipedia.org/wiki/Better_Business_Bureau

Our Association, the largest horological organization of its kind, seeks to encourage and stimulate interest in the art and science of timekeeping.

Source: http://www.nawcc.org/

With over 5000 members from 52 countries, the International Watch & Jewelry Guild (IWJG) is the world's most active central exchange for acquiring, buying, selling and trading fine vintage, collectable timepieces, estate jewelry, and important diamonds.

Source: http://www.iwjg.com/about.shtml

AWCI is the premier professional international organization dedicated to preserving and promoting the highest standards of workmanship in the horological crafts. It is the role of AWCI to set the standard of excellence to be applied to the quality of instruction for both the repair and restoration practices that are taught worldwide to watchmakers and clockmakers.

Source: http://www.watch-clock-makers.org/about.php