Sharpening stone brands in New Zealand:Which are most popular?
In September 2026, Shun was the most searched sharpening stone brand in New Zealand, accounting for 42.9% of all searches among the four brands we track. When we checked with ChatGPT and Google AI Overviews, Naniwa and Shapton were mentioned most often, in three of the five answers. Shapton was recommended most often, coming first in all three responses that gave a list.
ShunShare of searches 42.9%Mentioned in 0 of 5 AI answersPlace in AI recommendations –
Norton AbrasivesShare of searches 38.1%Mentioned in 0 of 5 AI answersPlace in AI recommendations –- NaniwaShare of searches 9.5%Mentioned in 3 of 5 AI answersPlace in AI recommendations 2nd
- ShaptonShare of searches 9.5%Mentioned in 3 of 5 AI answersPlace in AI recommendations 1st
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Top sharpening stone brands in ChatGPT and Google AI Overviews
In Brandwave's three ChatGPT questions and two Google AI Overviews, Naniwa and Shapton were mentioned most often, in three of the five answers. Shapton was recommended most often, coming first in all three answers that gave a list. Naniwa was second. Shun, which ranked first in searches, was not mentioned at all.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
- Naniwa3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
- Shapton3 of 5Named in 3 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Shun0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Norton Abrasives0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
See every answer about sharpening stone brands
5 answers
Asked ChatGPT
“Which sharpening stone brand should I buy in New Zealand?”
Asked ChatGPT
“What are the best sharpening stone brands in New Zealand?”
Asked ChatGPT
“What's the best sharpening stone brand in New Zealand for sharp kitchen knives?”
Searched Google, AI Overview
“knife sharpening stone”
Searched Google, AI Overview
“whetstone nz”
Not named in any answer:
Brands are shown in the order each answer named them. The survey took place in New Zealand on October 21, 2026.
Which sharpening stone brands do people search for most?
This chart shows how often people search Google for each sharpening stone brand by name. Each line represents a brand's share of searches for all four sharpening stone brands we track, month by month, from searches in New Zealand.
Share of searches by month for Shun, Norton Abrasives, Naniwa, Shapton. The figures are in the table below the chart.
View monthly share of searches table
| Month | Shun | Norton Abrasives | Naniwa | Shapton |
|---|---|---|---|---|
| Oct 2025 | 29.4% | 47.1% | 17.6% | 5.9% |
| Nov 2025 | 47.4% | 31.6% | 10.5% | 10.5% |
| Dec 2025 | 53.8% | 38.5% | 3.8% | 3.8% |
| Jan 2026 | 39.1% | 43.5% | 13% | 4.3% |
| Feb 2026 | 38.9% | 44.4% | 11.1% | 5.6% |
| Mar 2026 | 47.8% | 34.8% | 13% | 4.3% |
| Apr 2026 | 38.9% | 44.4% | 11.1% | 5.6% |
| May 2026 | 25.9% | 66.7% | 3.7% | 3.7% |
| Jun 2026 | 42.9% | 47.6% | 4.8% | 4.8% |
| Jul 2026 | 35% | 50% | 10% | 5% |
| Aug 2026 | 34.6% | 53.8% | 3.8% | 7.7% |
| Sep 2026 | 42.9% | 38.1% | 9.5% | 9.5% |
| Rank | Brand | Share of searches | Estimated monthly branded searches | vs prior month | Share change |
|---|---|---|---|---|---|
| 1, moved from 2nd to 1st | 42.9% | 90 | 0% | +8.2 pointsmoved from 2nd to 1st | |
| 2, moved from 1st to 2nd | 38.1% | 80 | -42.9% | -15.8 pointsmoved from 1st to 2nd | |
| 3, moved from 4th to 3rd | 9.5% | 20 | +100% | +5.7 pointsmoved from 4th to 3rd | |
| 4, moved from 3rd to 4th | 9.5% | 20 | 0% | +1.8 pointsmoved from 3rd to 4th |
1.
Shun42.9%
Moved from 2nd to 1st. 90 estimated branded searches, 0% vs prior month. Share +8.2 points.
38.1%
Moved from 1st to 2nd. 80 estimated branded searches, -42.9% vs prior month. Share -15.8 points.
3.Naniwa
9.5%
Moved from 4th to 3rd. 20 estimated branded searches, +100% vs prior month. Share +5.7 points.
4.Shapton
9.5%
Moved from 3rd to 4th. 20 estimated branded searches, 0% vs prior month. Share +1.8 points.
Which brand is most popular in search among sharpening stone brands in New Zealand?
4 brands
In September 2026, Shun was the most searched among sharpening stone brands in New Zealand, with an estimated 90 branded searches, 42.9% of all searches for the four we track. Norton Abrasives is in 2nd place, 4.8 percentage points behind at 38.1%.
| Brand | Share of searches | Peak | Low | Rank |
|---|---|---|---|---|
| 29.4% → 42.9% | 53.8%Dec 2025 | 25.9%May 2026 | 2nd → 1st | |
| 47.1% → 38.1% | 66.7%May 2026 | 31.6%Nov 2025 | 1st → 2nd | |
| Naniwa | 17.6% → 9.5% | 17.6%Oct 2025 | 3.7%May 2026 | 3rd |
| Shapton | 5.9% → 9.5% | 10.5%Nov 2025 | 3.7%May 2026 | 4th |
Each finding as a sentence
- Across the 12 months ending September 2026, Shun’s share of searches among sharpening stone brands in New Zealand increased from 29.4% to 42.9%.
- Across the 12 months ending September 2026, Norton Abrasives’ share of searches among sharpening stone brands in New Zealand decreased from 47.1% to 38.1%.
- Across the 12 months ending September 2026, Naniwa’s share of searches among sharpening stone brands in New Zealand decreased from 17.6% to 9.5%.
- Across the 12 months ending September 2026, Shapton’s share of searches among sharpening stone brands in New Zealand increased from 5.9% to 9.5%.
- Across the 12 months ending September 2026, Shun’s share of searches among sharpening stone brands in New Zealand peaked at 53.8% in December 2025 and was lowest at 25.9% in May 2026.
- Across the 12 months ending September 2026, Norton Abrasives’ share of searches among sharpening stone brands in New Zealand peaked at 66.7% in May 2026 and was lowest at 31.6% in November 2025.
- Across the 12 months ending September 2026, Naniwa’s share of searches among sharpening stone brands in New Zealand peaked at 17.6% in October 2025 and was lowest at 3.7% in May 2026.
- Across the 12 months ending September 2026, Shapton’s share of searches among sharpening stone brands in New Zealand peaked at 10.5% in November 2025 and was lowest at 3.7% in May 2026.
- Across the 12 months ending September 2026, Shun rose from 2nd to 1st among sharpening stone brands in New Zealand.
- Across the 12 months ending September 2026, Norton Abrasives fell from 1st to 2nd among sharpening stone brands in New Zealand.
How did search popularity change for New Zealand sharpening stone brands in September 2026?
4 changes

In September 2026, Shun overtook Norton Abrasives to become the leader among sharpening stone brands in New Zealand, with 42.9% of the searches.
In September 2026, Naniwa overtook Shapton to rank 3rd among sharpening stone brands in New Zealand, with 9.5% of the searches.
In September 2026, Shapton gained share of searches among sharpening stone brands in New Zealand, from 7.7% to 9.5%.

In September 2026, Norton Abrasives lost share of searches among sharpening stone brands in New Zealand, from 53.8% to 38.1%.
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