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Gemstone - Our Crown Jewel. A unique single vineyard Riesling with a quarter of the blend fermented & matured in granite tanks.
Enticing and textural with notes of luscious citrus blossom and white florals. A beautiful flow and balance with subtle sweetness and hints of smokiness.
Each vintage the fruit comes exclusively from a single vineyard within the Marlborough wine region. The 2017 vintage was from the Giesen-owned Eden Valley Vineyard in the lower Waihopai Valley; our 2018 and 2020 vintages were from a single vineyard in the Awatere Valley.
A portion of the blend is fermented and matured in granite tanks. It’s the use of granite which makes Gemstone special.
Granite tanks are made from one giant slab of plutonic rock and the French have been fermenting in them for centuries. Granite acts a little like oak barrels, it lets air in and they ever so slightly ‘sweat’, this slight evaporation adds concentration to the wine. This ensures the wine portion matured in granite is clean, bright and full of flavour.
A unique Gemstone of a wine.
These wines feature something a little bit out of the ordinary - a little bit extra-special. We invite you to explore these delightful wines, discover what makes them unique, and maybe even find a new favourite.
Awatere Valley, Marlborough
Fruit is hand harvested before being pressed as whole bunches.
The free run juice was fermented in a combination of granite tanks, used French oak barrels and stainless.
After fermentation the wine is matured on light lees for five months.
The use of granite adds another dimension to the wine, creating an intense, pure Riesling.
If you’ve mastered making New Zealand’s number one selling Riesling, it makes sense to challenge yourself, right? That’s why the Giesen winemaking team has created a limited release, Gemstone Riesling. Giesen has a quality Riesling pedigree. Founders Theo, Alex...Read more
"Fresh, fruity and primary on the nose with lifted aromas of lemonade, gala apple and honeysuckle. Pure, zesty, tangy and lemony on the palate, showing the hallmarks of the variety. Finishes delicately sweet, balanced by saline, crystalline acidity.
2020 Vintage, Reviewed May 2021."
NZ Wine Rater
"If you like a smack of sweetness in your riesling then you’ve come to the right place, because this mandarin, apple and lime-laden lovely is saturated with zesty citrus sweetness, gum-tingling acidity and hefty, honeyed notes on
the finish. Unique in that it’s fermented in a granite tank which kind of lets the wine ‘sweat’ and increases concentration. Granite tanks are made from one giant slab of plutonic rock and the French have been fermenting in them for centuries. Sept 2018."
Yvonne Lorkin - NZ Wine Writer
"2018 Vintage: Excellent - Explosive nose of citrus blossom, fruit jube, sherbet and apple. The rich and bold palate continues the theme, adding honeyed elements, yet for all its fatness, it does retain a light, aerial quality. Distinctly youthful and primary, developing more creaminess in the glass with aeration: time should be a friend here. August 2018."
Mark Henderson - Otago Daily Times
"2018 Vintage: Top Drops - This wine is enticing and textural with notes of luscious citrus blossom band white florals. A beautiful flow and balance with subtle sweetness, minerality and a lingering character-filled finish. August 2018."
"2018 Vintage: Light (10.5% alc/vol), with a splash of sweetness and vibrant, citrusy, slightly appley flavours, this drink-young charmer is distinctive, with complexity reflecting its handling in barrels and large granite tanks. $20. August 2018."
Michael Cooper - NZ Wine Writer
"2018 Vintage: Medium riesling with citrus, lime and wildflower flavours. Initial sweetness creates a lovely tension with fruity acidity, which helps drive a lengthy finish. An ethereal texture adds delicacy and charm. Bob Campbell - The Real Review. August 2018"
Bob Campbell - The Real Review
"2018 Vintage - August 2018"
"2017 Vintage: It is delightfully charming on the nose showing lime sorbet, red apple and white floral characters with a hint of savoury complexity. The palate is concentrated and linear, displaying delicate fruit intensity and fine texture, fabulously enhanced by elegant sweetness and perfectly pitched acidity, leading to a superbly long juicy finish. At its best: 2018 to 2027."
Sam Kim - Wine Orbit
"2017 Vintage: Very fragrant and quite complex with aromas of flowers, apples, citrus fruits and spice. On the palate – off-dry, but with a focused acidity the wine finishes almost dry. Flavours of lemon and ginger tea, apple and honeysuckle. A lovely example with concentration and length. Drink now and through 2028."
Cameron Douglas - The Shout
"2017 Vintage: This new limited release label for Giesen offers a medium riesling with precise, taut acidity creating lively tension with some residual sweetness. An appealing wine in a great aperitif style and with the potential to develop well in bottle."
Bob Campbell - NZ Master of Wine
"2017 Vintage: This thought-provoking wine was handled in stainless-steel tanks, oak barrels and large granite tanks. Full of personality, it is light-bodied (10% alc/vol), with incisive lemon/ lime flavours, seductive balance of sweetness and acidity and a lasting finish."
Michael Cooper - NZ Wine Writer
"2017 Vintage: A gorgeously seductive, sweetish wine, a portion of this wine was fermented and matured in granite tanks, which may be responsible for the clean and incisive minerality and excellent concentration."
Simon Wood - NZ Wine Writer