| 10 Products | May 2023 | May 2024 | Change |
| Guylian Belgian Chocolate Sea Shells (250g) | £6.28 | £6.28 | £0.00 No change |
| | £6.00 | £6.25 | + £0.25 4.2% increase |
| | £5.50 | £5.50 | £0.00 2.3% increase |
| | £11.49 | £9.95 | - £1.54 -5.6% decrease |
| | £4.50 | £4.50 | £0.00 -4.7% increase |
| | £6.00 | £6.25 | + £0.25 -3.1% increase |
| | £6.00 | £6.50 | + £0.50 -1.4% increase |
| | £4.50 | £5.00 | + £0.50 No change |
| | £6.72 | £8.00 | + £1.28 19% increase |
| | £6.88 | £12.00 | + £5.12 74.4% increase |
| | £10.00 | £10.00 | £0.00 30.3% increase |
| | £5.00 | £5.00 | £0.00 23.5% increase |
| | £5.00 | £5.00 | £0.00 19% increase |
| Guylian The Original Seashells Boxed Chocolates with Hazelnut Praline Filling (65g) | £3.76 | £3.65 | - £0.11 -2.9% decrease |
| | £11.49 | £9.99 | - £1.50 -13.1% decrease |
| | £0.50 | £1.25 | + £0.75 -6.3% increase |
| | £1.55 | £1.60 | + £0.05 -5.1% increase |
| | £1.50 | £1.75 | + £0.25 -2.9% increase |
| Guylian Belgian Chocolates The Original Seashells (500g) | £11.00 | £11.00 | £0.00 No change |
| | £11.00 | £11.00 | £0.00 No change |
| | £11.00 | £11.00 | £0.00 No change |
| | £11.00 | £11.00 | £0.00 No change |
| Guylian Milk Chocolate Egg with 12 Original Praline Seahorses (306g) | £9.00 | £8.67 | - £0.33 -3.7% decrease |
| | £7.00 | £5.00 | - £2.00 -28.6% decrease |
| | £10.00 | £10.00 | £0.00 -11.8% increase |
| | £10.00 | £11.00 | + £1.00 -3.7% increase |
| Guylian Seashells Box (500g) | £9.63 | £10.00 | + £0.37 3.8% increase |
| | £9.25 | £10.00 | + £0.75 8.1% increase |
| | £10.00 | £10.00 | £0.00 3.8% increase |
| Guylian Master's Selection (200g) | £8.00 | £8.00 | £0.00 No change |
| | £8.00 | £8.00 | £0.00 No change |
| Guylian Chocolate Sea Horses (42g) | £0.85 | £0.85 | £0.00 No change |
| | £0.85 | £0.85 | £0.00 No change |
| Guylian Belgian Deluxe Assortment (369g) | £6.88 | £12.00 | + £5.12 74.4% increase |
| | £6.88 | £12.00 | + £5.12 74.4% increase |
| Guylian Seashells Box (500g) | £10.00 | £10.00 | £0.00 No change |
| | £10.00 | £10.00 | £0.00 No change |
