Diamond 2003 (53.1% Bottling) / 18 Year Old / The Whisky Agency vs Glen Spey 21 Year Old (Special Release 2010)
Side-by-side comparison — price, ABV, scores, tasting notes, pros & cons.

Diamond 2003 (53.1% Bottling) / 18 Year Old / The Whisky Agency
Diamond
£160

Glen Spey 21 Year Old (Special Release 2010)
Glen Spey
★ 5.00
£134
| Diamond 2003 (53.1% Bottling) / 18 Year Old / The Whisky Agency | Glen Spey 21 Year Old (Special Release 2010) | |
|---|---|---|
| Distillery | Diamond | Glen Spey |
| Region | — | Speyside |
| Country | United Kingdom | Scotland |
| Type | Single Malt | |
| ABV | 40% | 50.4% |
| Age | NAS | 21 yr |
| Price | £160 | £133.99 |
| Rating | — | 5.00/5 |
Diamond 2003 (53.1% Bottling) / 18 Year Old / The Whisky Agency
Glen Spey 21 Year Old (Special Release 2010)
Diamond 2003 (53.1% Bottling) / 18 Year Old / The Whisky Agency
Glen Spey 21 Year Old (Special Release 2010)
Quick verdict
Glen Spey 21 Year Old (Special Release 2010) is rated higher (5.00 vs 0.00).
Glen Spey 21 Year Old (Special Release 2010) is better value at £134 vs £160.
For beginners: Diamond 2003 (53.1% Bottling) / 18 Year Old / The Whisky Agency is more approachable (60/100 beginner score).
Diamond 2003 (53.1% Bottling) / 18 Year Old / The Whisky Agency
Pros
- +Balanced smoky character without being overwhelming
- +Vibrant, fresh fruit character
Cons
- −More expensive (£160 vs £133.99)
- −Lower community rating (0.0 vs 5.0)
Glen Spey 21 Year Old (Special Release 2010)
Pros
- +Approachable and beginner-friendly sweetness
- +Better value for money
- +Higher community rating (5.0/5)
- +More affordable (£133.99 vs £160)
Cons
- −High ABV (50.4%) — may need water
- −Lacks smoke character compared to the alternative
Who should buy Diamond?
Diamond 2003 (53.1% Bottling) / 18 Year Old / The Whisky Agency suits whisky enthusiasts looking for a well-rounded, complex dram. It rewards those with some experience and an appreciation for character.
Who should buy Glen?
Glen Spey 21 Year Old (Special Release 2010) suits those who enjoy sweet, honeyed, or fruity whiskies. It's accessible for beginners and crowd-pleasing enough for gifts. Fans of approachable Speyside or Irish whiskey will love it.
Tasting notes
Only Diamond 2003 (53.1% Bottling) / 18 Year Old / The Whisky Agency
Only Glen Spey 21 Year Old (Special Release 2010)