Not all sellers present diamond grading lab studies (aka diamond high quality studies) to their shoppers. So my common recommendation to you is to maintain your cash in your pocket when coping with such jewelers.
Solely buy a diamond engagement ring if it comes with the unique diamond high quality report.
A lab report is an impartial analysis of the 鑽石4c of a unfastened diamond and features a plotted diagram of the stone’s readability traits and a graphic illustration of the stone’s proportions. Having such a report lets you evaluate diamonds of various qualities and finally helps you make a extra knowledgeable shopping for choice.
A retailer might lower corners and never present a lab report or an unscrupulous vendor might present a faux one due to the time, bother and expense he’ll bear to getting a stone graded.
Yeah – there’s a value for grading a diamond (although that price is finally paid by the patron), plus the delivery and insurance coverage prices for sending the diamond to the lab. And allow us to not neglect the chance price of a jeweler not having the diamond in his retailer on the market for just a few weeks whereas the grading takes place.
Nevertheless, a diamond grading report can also not be accessible as a result of the prices to getting one might influence too closely on the ultimate value of the ring.
For instance, a Zero.3ct diamond ring costing $250 say, might price round $75 to be graded and have the report quantity inscribed on the girdle on the diamond.
As you seek for that excellent diamond engagement ring to your sweetheart, you will discover that there’s an alphabet soup of labs claiming to offer respected diamond grading studies. However I might solely put my cash on…
The Premier Diamond Grading Lab Reviews
Sure, all diamond high quality studies will not be created equal. Throughout the business, it’s a consensus that the 2 premier labs are GIA-GTL (Gemological Institute of America’s Gem Commerce Lab) and the AGS (American Gem Society Laboratories).
The GCAL (Gem Certification and Assurance Lab) additionally presents extremely regarded studies or “diamond certificates” as they’re referred to by GCAL.
The GIA has the strongest international fame for independence and consistency. On account of their fixed colour and readability strictness tips, the globe’s largest and most costly diamonds have been despatched there for grading many years. In 2006, GIA-GTL added a two-dimensional lower grading system for spherical good diamonds.
AGS makes use of the strictest lower requirements within the business. It makes use of a three-dimensional mild efficiency metric that may grade a number of diamond shapes. In reality, it’s the solely lower grading system that’s acknowledged by the scientific group.
What’s extra, its Diamond High quality Doc makes use of a novel and proprietary Zero to 10 grading system to guage the four Cs – a system which is less complicated to grasp than GIA’s grading system. In reality, AGS even goes the additional step by equating their Zero-10 ranking scale to different types of ranking.
For instance, the standard VS1 diamond readability ranking is a three on the AGS Diamond High quality Doc.