B
Evidence Grade B
Graded
under review
Safe to Cite
Current
50%
50% -- percentage of store sales from repeat loyalty program customers for Polish jewelry retail (YES Biżuteria loyalty programs) (2026)
Attribution:
View source
Lighthouse Research Team
Last verified:
·
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Source verified
Evidence graded
Value
50%
Unit
Percentage
Data Vintage
2026
Entity
Evidence Quality
B
Strong, reliable evidence
Sourced from a well-regarded research firm or industry leader with transparent methodology and a reasonably large sample.
Single source - not yet corroborated
Score breakdown
Extraction
75
Source Trust
60
Citation Chain
20
Independence
30
Methodology
45
Freshness
95
Source
Sparta Loyalty / YES Biżuteria
Primary
Tier B
https://spartaloyalty.com/pl/artykuly/walentynki-motorem-wzrostu-sprzedazy-jak-programy-lojalnosciow… ↗
Source Article
Walentynki motorem wzrostu sprzedaży: Jak programy lojalnościowe podbijają serca klientów w branży biżuteryjnej
Walentynki to w branży biżuteryjnej czas szczególny. Zaręczyny oraz rosnąca popularność obdarowywania bliskich prezentami przyczyniają się do wzrostu sprzedaży, szczególnie w kanałach online. Z drugiej strony firmy jubilerskie od lat borykają się ze spadkiem liczby klientów w sklepach stacjonarnych.…
Original Research
Sparta Loyalty / YES Biżuteria
· Original study ↗
Methodology
Internal first-party data from YES Biżuteria loyalty programs (YES CLUB, Verona CLUB); 'ponad 50%' means over 50%, exact figure not stated
Methodology documented
Segmentation
Industrymarketing
Cite this stat
Plain Text
Polish jewelry retail (YES Biżuteria loyalty programs): 50% percentage of store sales from repeat loyalty program customers. Source: Sparta Loyalty / YES Biżuteria (2026). Via Lighthouse Intelligence -- https://lighthousedata.io/data/loyalty-program-repeat-sales-jewelry-poland
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<blockquote cite="https://lighthousedata.io/data/loyalty-program-repeat-sales-jewelry-poland" style="border-left:3px solid #2563eb;padding:12px 16px;margin:16px 0;font-family:system-ui,sans-serif;background:#f0f4ff;"><strong>50%</strong> -- percentage of store sales from repeat loyalty program customers for Polish jewelry retail (YES Biżuteria loyalty programs)<br><small>Source: Sparta Loyalty / YES Biżuteria (2026) · <a href="https://lighthousedata.io/data/loyalty-program-repeat-sales-jewelry-poland" target="_blank" rel="noopener">Lighthouse Intelligence</a></small></blockquote>
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