Exhibit 4.3


 


SPECIMEN
WARRANT CERTIFICATE


 


	NUMBER	 	[    ]
    WARRANTS
	WA-	 	 


 


(THIS WARRANT WILL BE
VOID IF NOT EXERCISED PRIOR TO 5:00 P.M.





NEW YORK CITY TIME, FIVE
YEARS FROM THE CLOSING DATE OF THE COMPANY’S INITIAL





BUSINESS COMBINATION)


 


AQUARIUS II ACQUISITION
CORP.


 


CUSIP: G0441M 127


 


WARRANT


 


THIS
WARRANT CERTIFIES THAT, for value received                                         ,
or registered agents, is the registered holder of a whole Warrant or Warrants (the “Warrant”), expiring on a date which is
five (5) years from the completion of the Company’s initial business combination, to purchase one fully paid and non-assessable
ordinary share (the “Warrant Shares”), with a par value $0.0001 per share, of AQUARIUS II ACQUISITION CORP., a Cayman Islands
company (the “Company”), for each Warrant evidenced by this Warrant Certificate. This Warrant Certificate is subject to and
shall be interpreted under the terms and conditions of the Warrant Agreement (as defined below).


 


Each
whole Warrant is initially exercisable for one fully paid and non-assessable share of Warrant Share. No fractional shares will be issued
upon exercise of any Warrant. If, upon the exercise of Warrant, a holder would be entitled to receive a fractional interest in a share,
the Company will, upon exercise, round down to the nearest whole number of the number of shares of Warrant Share to be issued to the
holder. The number of shares of Warrant Share issuable upon exercise of the Warrants is subject to adjustment upon the occurrence of
certain events set forth in the Warrant Agreement.


 


The
Warrant entitles the holder thereof to purchase from the Company, from time to time, in whole or in part, commencing 30 days after the
consummation of the Company’s initial business combination and twelve (12) months from date that the registration statement is
declared effective, such number of Warrant Shares at the price of $11.50 per full share (the “Warrant Price”), upon surrender
of this Warrant Certificate and payment of the Warrant Price at the office or agency of American Stock Transfer & Trust Company,
LLC (the “Warrant Agent”), such payment to be made subject to the conditions set forth herein and in the Warrant Agreement,
dated [______], 2021, between the Company and the Warrant Agent (the “Warrant Agreement”). In no event shall the registered
holder(s) of this Warrant be entitled to receive a net-cash settlement in lieu of physical settlement in Warrant Shares of the Company.
The Warrant Agreement provides that, upon the occurrence of certain events, the Warrant Price and the number of Warrant Shares purchasable
hereunder, set forth on the face hereof, may be adjusted, subject to certain conditions. The term Warrant Price as used in this Warrant
Certificate refers to the price per full Warrant Share at which Warrant Shares may be purchased at the time the Warrant is exercised.


 


This
Warrant will expire on the date first referenced above if it is not exercised prior to such date by the registered holder pursuant to
the terms of the Warrant Agreement or if it is not redeemed by the Company prior to such date.


 


Upon
any exercise of the Warrant for less than the total number of full Warrant Shares provided for herein, there shall be issued to the registered
holder(s) hereof or its assignee(s) a new Warrant Certificate covering the number of Warrant Shares for which the Warrant has not been
exercised.


 


Warrant
Certificates, when surrendered at the office or agency of the Warrant Agent by the registered holder(s) hereof in person or by attorney
duly authorized in writing, may be exchanged in the manner and subject to the limitations provided in the Warrant Agreement, but without
payment of any service charge, for another Warrant Certificate or Warrant Certificates of like tenor and evidencing in the aggregate
a like number of Warrants.


 






     


     


    

 


Upon
due presentment for registration of transfer of the Warrant Certificate at the office or agency of the Warrant Agent, a new Warrant Certificate
or Warrant Certificates of like tenor and evidencing in the aggregate a like number of Warrants shall be issued to the transferee(s)
in exchange for this Warrant Certificate, subject to the limitations provided in the Warrant Agreement, without charge except for any
applicable tax or other governmental charge.


 


The
Company and the Warrant Agent may deem and treat the registered holder(s) as the absolute owner(s) of this Warrant Certificate (notwithstanding
any notation of ownership or other writing hereon made by anyone) for the purpose of any exercise hereof, of any distribution to the
registered holder(s), and for all other purposes, and neither the Company nor the Warrant Agent shall be affected by any notice to the
contrary.


 


This
Warrant does not entitle the registered holder(s) to any of the rights of a shareholder of the Company.


 


After
the Warrant becomes exercisable and prior to its expiration date, the Company reserves the right to call the Warrant at any time, with
a notice of call in writing to the holder(s) of record of the Warrant, giving thirty (30) days’ written notice of such call if
the last reported sale price of the shares has been equal to or greater than $18.00 per share for any twenty (20) trading days within
a thirty (30) trading day period ending on the third (3rd) trading day prior to the date on which notice of such call is given, provided
that (i) a registration statement under the Securities Act of 1933, as amended (the “Act”) with respect to the ordinary shares
underlying the Warrants issuable upon exercise must be effective and a current prospectus must be available for use by the registered
holders hereof or (ii) the Warrants may be exercised on cashless basis as set forth in the Warrant Agreement and such cashless exercise
is exempt from registration under the Act. The call price is $0.01 per Warrant Share.


 


If
the foregoing conditions are satisfied and the Company calls the Warrant for redemption, each holder will then be entitled to exercise
his, her or its Warrant prior to the date scheduled for redemption; provided that the Company may require the Registered Holder who desires
to exercise the Warrant, to elect cashless exercise as set forth in the Warrant Agreement, and such Registered Holder must exercise the
Warrants on a cashless basis if the Company so requires. Any Warrant either not exercised or tendered back to the Company by the end
of the date specified in the notice of call shall be canceled on the books of the Company and have no further value except for the $0.01
call price.


 


COUNTERSIGNED:


 


AMERICAN STOCK TRANSFER & TRUST COMPANY,
LLC


 


WARRANT AGENT


 


	BY:	                                                	 
	AUTHORIZED OFFICER



 


	DATED: 	          	 
	 
	(Signature)
	CHIEF EXECUTIVE OFFICER






 


(Seal)


 


(Signature)


 





SECRETARY


 


[REVERSE OF CERTIFICATE]


 






    2


     


    










 


SUBSCRIPTION FORM


 


To Be Executed by the
Registered Holder(s) in Order to Exercise Warrants


 


The undersigned hereby
irrevocably elects to exercise the right, represented by this Warrant Certificate, to receive ordinary shares in accordance with the
terms of this Warrant Certificate and pursuant to the method selected below. Capitalized terms used herein and not otherwise defined
have the respective meanings set forth in the Warrant Certificate. PLEASE CHECK ONE METHOD OF PAYMENT:


 


	 	 	 	 
	 	 

	 	a “Cash Exercise” with respect
    to                  Warrant Shares; and/or
	 	 
	 	 

	 	a “Cashless Exercise” with respect to                 
    Warrant Shares because on

     

    the date of this exercise, there is no effective registration
    statement

     

    registering the Warrant Shares, or the prospectus contained therein
    is not available for the resale of the Warrant Shares, in which event the Company shall deliver to the registered holder(s)                 
    ordinary shares pursuant to Section 3.3.2 of the Warrant Agreement.

    






 


The undersigned requests
that a certificate for such shares be registered in the name(s) of:


 


	 
	 


	(PLEASE TYPE OR PRINT NAME(S) AND ADDRESS)
	 
	 


	 
	 


	 
	 


	(SOCIAL SECURITY OR TAX IDENTIFICATION NUMBER(S))





 


	 	 	 
	and be delivered to	 	 


	 	 	(PLEASE PRINT OR TYPE NAME(S) AND ADDRESS) and, if such number of Warrants shall not
be all the Warrants evidenced by this Warrant Certificate, that a new Warrant Certificate for the balance of such Warrants be registered
in the name of, and delivered to, the registered holder(s) at the address(es) stated below:








 


Dated:


 





	 	 
	(SIGNATURE(S))	 
	 	 
	 	 
	(ADDRESS(ES))	 
	 	 
	 	 
	 	 
	 	 
	 	 
	(TAX IDENTIFICATION NUMBER(S))	 











 






    3


     


    

 


ASSIGNMENT


 


To Be Executed by the
Registered Holder in Order to Assign Warrants


 


For Value Received,                                     
hereby sell(s), assign(s), and transfer(s) unto





 


	 	 
	 

	 
	(PLEASE TYPE OR PRINT NAME(S) AND ADDRESS(ES))	 
	 	 
	 

	 
	 	 
	 

	 
	 	 
	 

	 


(SOCIAL SECURITY OR TAX IDENTIFICATION NUMBER(S))





 


	 	 	 	 	 
	and to be delivered to	 	 

	 	 
	 	 	(PLEASE PRINT OR TYPE NAME(S) AND ADDRESS(ES))	 	 
	 	 
	 

	 	 
	 	 
	 

	 	 


(SOCIAL SECURITY OR TAX IDENTIFICATION
NUMBER(S)) of the Warrants represented by this Warrant Certificate, and hereby irrevocably constitute and appoint
                     Attorney to
transfer this Warrant Certificate on the books of the Company, with full power of substitution in the premises.


 


Dated:


 


	 	 
	(SIGNATURE(S))	 


 


NOTICE: THE SIGNATURE(S) TO THIS ASSIGNMENT
MUST CORRESPOND WITH THE NAME AS WRITTEN UPON THE FACE OF THE CERTIFICATE IN EVERY PARTICULAR, WITHOUT ALTERATION OR ENLARGEMENT OR ANY
CHANGE WHATEVER.


 


Signature(s) Guaranteed:





 


	By	 	 




 


THE SIGNATURE(S) MUST BE GUARANTEED BY AN
ELIGIBLE GUARANTOR INSTITUTION (BANKS, STOCKBROKERS, SAVINGS AND LOAN ASSOCIATIONS AND CREDIT UNIONS WITH MEMBERSHIP IN AN APPROVED SIGNATURE
GUARANTEE MEDALLION PROGRAM, PURSUANT TO S.E.C. RULE 17Ad-15).


 


 


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