The little Argentine has been particularly crucial away from home, playing a key role in wins at Arsenal, Liverpool, Manchester City and Saturday's 2-2 draw at Sunderland where the Hammers came from 2-0 down.
His impressive performances have drawn praise from fans, pundits and his manager Slaven Bilic who has likened him to David Silva in that his diminutive stature does not impact on his ability to perform in the Premier League.
Key man on the road
Lanzini was one of West Ham's best players in the 2-2 draw with the Mackems, constantly probing and trying to make things happen.
It was his shot from distance which forced Costel Pantilimon to parry into the path of Dimitri Payet for the Hammers' equaliser.
With so much attention on the young star, Hammers co-owner Gold fielded a key question from a number of the club's fans who were worried a bigger club might snatch him from under their noses given he is only on loan.
But Gold has confirmed the Hammers will be at the front of queue at the end of the season, posting on Twitter: "Yes we do have an option to buy Lanzini at the end of the season."
Yes we do have an option to buy Lanzini at the end of the season. dg https://t.co/MfMITfhrkp— David Gold (@davidgold) October 4, 2015
Lanzini has been key to the way West Ham play this season, helping launch counter attacks with his pace and skill.
More importantly, though, Lanzini's presence in midfield and the way he interchanges with the Hammers' star man Dimitri Payet makes him the ideal foil for the Frenchman.
And the more Payet gets on the ball in and around the opposition's box, the more chance West Ham have of winning football matches.
Manuel Lanzini: The story so far
The 22-year-old was another in a long line of skilful Argentinians who were likened to Lionel Messi when he broke through at River Plate as a 17-year-old.
Somewhat bizarrely though, Lanzini, who holds an Italian passport, has been playing in the footballing backwater that is the UAE Arabian Gulf League with Al Jazira.
The tricky ace, nicknamed 'the Jewel', has a very similar style to Manchester United's Angel Di Maria and after signing him back in August Bilic said he may well have 'hit the jackpot'.
Well it seems that prediction has been pretty accurate so far, although it remains to be seen if he can sustain his form and fitness over the course of a grueling Premier League season.
If he can, Gold and fellow co-owner David Sullivan may want to have the chequebook at the ready.