Fronsac's fine Château Dalem perches high on a hill, surrounded by its 14 hectares of sloping vineyards. It's an historic estate, with records dating back to 1610, that stayed in the same family until 1955. Michel Rullier then took it over and today it's run with great success by his descendant, Brigitte Rullier-Loussert. Its vineyards are nearly all planted to Merlot, with a small amount of Cabernet Franc, and tended with meticulous care.

As you can see from critics' scores (92 points from James Suckling and 94 from Vertedevin), it is an admired claret and one that ages very well too. Matured in French oak (50% new), it has structure and length, but above all an appealing fruity depth. Perfect with roast meat or wild mushroom risotto.

Until 1997, Château Haut Brisson was an 8-hectare estate in the Vignonet section of Saint Emilion. New owner Peter Kwok was keen to expand its vineyards and the range of terroir, so began to buy up vine parcels to make it up to the 18 hectares it has today. Judging by today's scores and the quality of the wine, Kwok purchased wisely and quality has soared. Today it is under the ownership of Stephane Schinazi and continues its stellar projection, with Michel Rolland as consultant.

All its top grapes go into this wine (they no longer make La Réserve), ageing 30% of it in new French barriques, so as not to overwwhelm the fruit with oak notes. Now certified organic, with the aim of going biodynamic too, the 2020 is a magnificent wine.

This is one of those 'under-the-radar' regions I love to search out, home to the finest quality wines, but not so well-known. As Wine International says, "If it weren't for the [political] line dividing Castillon from Saint-Émilion, its wines would be twice the price. The hills are the same, the soil is the same, the exposure is the same." The estate has won over 150 awards, including the Paris Lauréat Prix d'Excellence – not once, but twice – and Decanter magazine calls it the "leading estate in the Côtes de Castillon". La Clarière is our flagship wine and absolutely no expense is spared. Low yields, careful hand-sorting, months ageing in the finest new French oak, and rigorous tasting ensure only the best parcels become La Clarière. Mostly Merlot, silky, elegant, and supple, with a dash of Cabernet Sauvignon for structure, and slightly portioned Malbec and Cabernet Franc for balance. It's truly magnificent!

Castillon is a tucked-away Right Bank Bordeaux appellation that, for too long, has lived in the shadow of its famous neighbour, Saint-Emilion. The two regions share the same soils, grapes and climate and the best Castillon wines certainly stand scrutiny next to the Grands Crus of the famous one. The upside is that claret lovers can still find Castillon wines at exceptionally good prices.

Château Joanin came into the Bécot family in 2001. It has the highest vineyards in all Castillon, in the lieu-dit of Joanin. Juliette Bécot is today in charge and, with the renowned Bordeaux winemaker Thomas Duclos as consultant, it’s clear they are aiming high. Merlot with Cabernet Franc, aged 50% in new oak, this is a rich red. Open early and decant.

Love a luxury Italian wine? Then put your name on the list to reserve for this sublime Tuscan wine – the "best wine ever from here" according to James Suckling, who rates it a stellar 96pts.

Tenuta Prima Pietra was founded in 2002 by Massimo Ferragamo, who searched out the highest land possible (450 metres above sea level) in coastal Tuscany, near the beautiful medieval village of Riparbella, just north of Bolgheri. He wanted his wine to benefit from the purity and freshness gained from the cooler, elevated site, where the sunshine is hot and intense during the day, and temperatures drop sharply at night.

The 100% certified organic vineyards overlooking the sea are comprised of 50% Merlot, 30% Cabernet Sauvignon, 10% Cabernet Franc and 10% Petit Verdot, ratios which mirror the portions used in the final ‘Super Tuscan' blend. Hand-picked, each batch was vinified separately, then blended and matured in luxury French oak for 18 months. The end result? This exquisitely rich and lavish wine, boasting 93pts from The Wine Advocate, 95pts from Falstaff Magazine and an impressive 96pts from James Suckling.

"Fabulous red with bright aromas of dark berries, mint, spices and blueberries. Best wine ever from here… 96pts" (James Suckling)

Prima Pietra embodies complexity and elegance, the highest expression of the potential of the terroir. "Elegance, attention to detail and quality, refined simplicity and a love of the land are the hallmarks of Prima Pietra, and pair with my sense of style too," says Massimo Ferragamo. This luxury collector's red, which appears on some of the finest wine lists, is one you must have for your cellar.