Rapaport broached the topic of lab-grown diamonds at the Rapaport Breakfast, and followed up the discussion at the Rapaport Town Hall meeting the next day. The highly animated open roundtable, moderated by Martin Rapaport, brought together proponents and opponents of lab-grown diamonds and allowed for fears, concerns and explanations regarding the topic to be aired.
“We should stop throwing rocks at each other,” said Thomas Chatham, CEO of Chatham Diamonds. He agreed that the natural mined diamond industry is undergoing a slump but natural diamond dealers attacking lab-grown diamond supporters as disingenuous would not change the industry’s stagnation.
Points that proponents raised as they tried to dispel what they saw as misconceptions of lab-grown diamonds include:
- Lab-grown diamonds can fill shortages in supply where natural mined diamonds could not always deliver.
- Retailers should not pass judgment on what jewelry consumers want. If consumers demand lab-grown diamonds, retailers should fulfill that demand.
- The scale of lab-grown diamonds is currently so small that it does not have the negative impact on the natural mined industry that opponents claim there is.
- Lab-grown diamonds simply have a better profit margin, benefiting retailers who feel that as long as everything is adequately disclosed, the sale of lab-grown diamonds is not dishonest.
- Pricing of lab-grown diamonds is not solely pegged to the cost of production, but is also determined by the levels that consumers will bear.
- Lab-grown diamonds, being a man-made product, have the potential for unlimited supply, which undermines the value of the product.
- The seemingly low barrier to entry could spell a situation where producers in China could keep growing diamonds endlessly, flooding the market.
- Even if lab-grown diamonds were inscribed and disclosed, dishonest players could always easily polish off the inscriptions and pass off these diamonds as natural.
- Confidence in the melee market today has been shattered as many in the diamond industry view all parcels they accept with inherent suspicion about the mixing of natural diamonds with lab-grown stones. Opponents of lab-grown diamonds fear a similar trend for larger stones should the lab-grown diamond trade grow.



