Rock Doctor Granite And Quartz Polish Market Report: Sales Volume, Market Share, Leading Brands & Market Trends

Weiman is the best-performing rock doctor granite and quartz polish brand in July 2026, moving 34,000 units across 7 ASINs for 75.6% of Top 10 volume. Granite Gold follows with 10,000 units (22.2%), ahead of Zep on 1,000 units (2.2%).

With 3 brands splitting the Top 10 and 100.0% of volume sitting with three of them, this is a concentrated shelf — the leaders hold multiple listings or one very high-velocity ASIN, so a new entrant competes against established review moats rather than an open field. Average selling prices among the leaders run from $3.88 to $18.02, which frames the price band a competing listing has to justify.

Based on July 2026 data, this shortlist surfaces the two kinds of ASIN worth keeping an eye on — the ones that just broke into the Top 10, and the ones growing fastest month over month. Specifically, one ASIN forced its way in: B00F0R9XS8 booked 1K units at $3.88, with ▲ 0.0% MoM change. On the growth side, B004JSLZEO leads positive momentum with ▲ 200.0% MoM growth on 300 units, with B002IKHEA4 close behind at ▲ 133.3% MoM on 700 units.

The two signals carry different weight. A fresh entrant means share has already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date. A steep growth rate works as the earlier warning: it marks demand that is still compounding, usually a month or two before the ranking catches up to it.