<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2013-07-18</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001566897</issuerCik>
        <issuerName>Diamond Resorts International, Inc.</issuerName>
        <issuerTradingSymbol>DRII</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001581695</rptOwnerCik>
            <rptOwnerName>Praesumo Partners, LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>10600 WEST CHARLESTON BOULEVARD</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LAS VEGAS</rptOwnerCity>
            <rptOwnerState>NV</rptOwnerState>
            <rptOwnerZipCode>89135</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>Member of 10% Group</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>753092</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Call Option (right to buy)</value>
                <footnoteId id="F2"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>12.56</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <value>2016-07-21</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>4535426</value>
                    <footnoteId id="F1"/>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote</value>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Call Option (right to buy)</value>
                <footnoteId id="F4"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>12.56</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F4"/>
            </exerciseDate>
            <expirationDate>
                <value>2016-07-21</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>431875</value>
                    <footnoteId id="F1"/>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote</value>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Represents shares of Common Stock being issued immediately prior to the closing of the initial public offering of the Common Stock in exchange for units of Diamond Resorts Parent, LLC.</footnote>
        <footnote id="F2">Represents a fully exercisable call option, dated as of July 21, 2011, to purchase shares of Common Stock from DRP Holdco, LLC.</footnote>
        <footnote id="F3">By 1818 Partners, LLC.  The reporting person is one of the managing members of 1818 Partners, LLC.  The reporting person disclaims beneficial ownership of any of the reported securities except to the extent of its pecuniary interest therein.</footnote>
        <footnote id="F4">Represents a fully exercisable call option, dated as of July 21, 2011, to purchase shares of Common Stock from third parties.</footnote>
    </footnotes>

    <remarks>The reporting person has entered into a Stockholders Agreement, dated July 17, 2013, with other individuals and entities becoming stockholders of Diamond Resorts International, Inc. (the &quot;Issuer&quot;).  Pursuant to the Stockholders Agreement, each of the parties thereto has agreed to cause the shares of common stock, par value $0.01 per share, of the Issuer (&quot;Common Stock&quot;) held by such party to be voted, at any meeting of stockholders called for such purpose, for the individuals nominated by the Issuer's board of directors for election to the Issuer's board of directors.  As a result of the Stockholders Agreement, the parties thereto constitute a &quot;group&quot; (as such term is defined in Section 13(d)(3) of the Securities Exchange Act, as amended (&quot;Exchange Act&quot;), and Rule 13d-5 promulgated thereunder).  The reporting person disclaims beneficial ownership of the shares of Common Stock held by members of such group, except to the extent of the reporting person's pecuniary interest therein, and this statement shall not be construed as an admission that the reporting person is the beneficial owner of any such shares for purposes of Section 16 of the Exchange Act or for any other purpose.</remarks>

    <ownerSignature>
        <signatureName>/s/ Jared T. Finkelstein, attorney-in-fact for Praesumo Partners, LLC</signatureName>
        <signatureDate>2013-07-18</signatureDate>
    </ownerSignature>
</ownershipDocument>
