The company raised its full-year sales guidance while noting it has not yet assessed the potential impact of the latest tariff news.
Stuller Now Selling CanadaMark Melee
Stuller said it is the first supplier in the U.S. to do so, giving it access to traceable melee at a time when concerns about undisclosed small synthetics abound.

Lafayette, La.--Stuller Inc. has become the first supplier in the United States to sell CanadaMark melee, a move that gives it access to a traceable supply of small stones at a time when concerns about undisclosed synthetic melee abound.
The Lafayette, La.-based supplier announced last week that it is partnering with Dominion Diamond Corp. to bring CanadaMark melee to the U.S.
The melee will be tracked in batches through audited processes from Dominion Diamonds’ Ekati Mine in the Northwest Territories to the market.
The small diamonds that qualify as melee (diamonds that are 0.16 carats or smaller) are not tracked through the diamond supply chain like larger diamonds are, in part because their value makes it cost-prohibitive.
This has created a lot of concern in the industry about how much lab-grown melee is slipping into natural parcels undisclosed, prompting big players like De Beers and the Gemological Institute of America to develop new and better systems for screening very small diamonds.
And now it is has pushed the largest supplier to the U.S. jewelry industry to seek out a traceable supply of melee.
As Stuller’s Vice President of Diamonds and Gemstones Stanley Zale put it, “Because of its size, melee is rarely tracked, so this is a big deal.”
The CanadaMark melee, Stuller said, will cost about 3.5 to 4 percent more than the other melee it sells.
Melee is an addition to the CanadaMark hallmark program that Dominion Diamond Corp. revived in 2014 after acquiring the trademark from BHP Billiton, the former owner of the Ekati Diamond Mine.
All the diamonds in the program are mined in Canada’s Northwest Territories, are natural and untreated, and are tracked through an auditing process at every stage, from the time they are mined until they become polished stones.
Stuller has more information about CanadaMark diamonds on its website.
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