In our survey, we found that small size gemstones, and lower grade gemstones in loose form are not sent to lab for certification and grading. The common reason the merchant quoted was the cost of certification, duration for same, and ease due to B2B transaction. Adversely, in the case of jewelry, it was found merchant are more interested in certifying the jewelry. 

Let's discuss and find out, is certification really a solution to gem industry, or just a trend to follow.