How to Buy your Diamond & Gemstones with Confidence
A diamond's beauty is the result of natural aspects of the rough crystal combined
with the finished quality of the cutting and polishing process.
The famous 4 Cs, used to describe a diamond's attributes, are well-known throughout
the world. Some aspects can be determined at a glance: Is it large or small? Is
it icy or warmly tinted? Is it clean to the naked eye or do some of nature's birthmarks
show themselves? Does it sparkle madly with rainbow-colored flashes, or is it calm,
deep and serene?
Beyond a glance, precise information determined by impartial experts must be assigned
to each diamond. For example, what specific color grade should be assigned? Do the
natural characteristics impact durability? Are the primary angles inside the ranges
found optimum for visual performance? Each of a diamond's 4 Cs deserves an in-depth
evaluation that goes beyond the abilities of unaided and untrained eyes.
A certificate from IGI represents the all-important 5th C that no one should be
without: Confidence. As the world's largest independent gem certification and appraisal
institute for diamonds, colored gemstones and jewelry, IGI is a standard of excellence
for industry professionals and consumers around the globe.
Gemstones should only change hands when accompanied by a certificate attesting to
quality. Regardless of location or marketplace, an authentic IGI Laboratory Report
is the common language of trust and confidence in the gemological world.