| 14 Products | Apr 2023 | Apr 2024 | Change |
| Guylian Belgian Chocolate Sea Shells (250g) | £5.07 | £5.38 | + £0.31 6.1% increase |
| | £4.50 | £4.50 | £0.00 No change |
| | £5.50 | £6.50 | + £1.00 10% increase |
| | £5.50 | £5.50 | £0.00 6.4% increase |
| | £4.50 | £5.00 | + £0.50 7.6% increase |
| | £5.18 | £4.50 | - £0.68 3.2% decrease |
| | £5.25 | £6.25 | + £1.00 6.1% increase |
| Guylian The Original Seashells Chocolate Box (375g) | £6.20 | £6.60 | + £0.40 6.5% increase |
| | £6.50 | £6.50 | £0.00 No change |
| | £8.00 | £8.00 | £0.00 No change |
| | £6.50 | £7.50 | + £1.00 4.7% increase |
| | £3.00 | £4.00 | + £1.00 8.3% increase |
| | £7.00 | £7.00 | £0.00 6.5% increase |
| | £6.72 | £8.00 | + £1.28 19% increase |
| | £6.88 | £12.00 | + £5.12 74.4% increase |
| | £5.00 | £5.00 | £0.00 43.1% increase |
| | £5.00 | £5.00 | £0.00 30.2% increase |
| | £10.00 | £10.00 | £0.00 19% increase |
| Guylian Belgian Chocolates The Original Seashells (500g) | £10.50 | £11.00 | + £0.50 4.8% increase |
| | £11.00 | £11.00 | £0.00 No change |
| | £11.00 | £11.00 | £0.00 No change |
| | £9.50 | £11.00 | + £1.50 4.8% increase |
| Guylian Milk Chocolate Egg with 12 Original Praline Seahorses (306g) | £8.67 | £10.33 | + £1.66 19.1% increase |
| | £10.00 | £11.00 | + £1.00 10% increase |
| | £7.00 | £10.00 | + £3.00 23.5% increase |
| | £9.00 | £10.00 | + £1.00 19.1% increase |
| Guylian The Original Seashells Boxed Chocolates with Hazelnut Praline Filling (65g) | £1.20 | £1.45 | + £0.25 20.8% increase |
| | £1.50 | £1.50 | £0.00 No change |
| | £1.60 | £1.60 | £0.00 No change |
| | £0.50 | £1.25 | + £0.75 20.8% increase |
| Guylian Seashells Box (500g) | £10.00 | £10.00 | £0.00 No change |
| | £10.00 | £10.00 | £0.00 No change |
| | £10.00 | £10.00 | £0.00 No change |
| Guylian No Added Sugar Milk Bars (100g) | £2.25 | £2.25 | £0.00 No change |
| | £2.49 | £2.49 | £0.00 No change |
| | £2.00 | £2.00 | £0.00 No change |
| Guylian Hazelnut Bars (100g) | £1.60 | £1.60 | £0.00 No change |
| | £1.50 | £1.50 | £0.00 No change |
| | £1.70 | £1.70 | £0.00 No change |
| Guylian Master's Selection (200g) | £8.00 | £8.00 | £0.00 No change |
| | £8.00 | £8.00 | £0.00 No change |
