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

    <schemaVersion>X0708</schemaVersion>

    <submissionType>D/A</submissionType>

    <testOrLive>LIVE</testOrLive>

    <primaryIssuer>
        <cik>0001794834</cik>
        <entityName>Gradian Diagnostics Inc</entityName>
        <issuerAddress>
            <street1>1815 Purdy Avenue</street1>
            <city>MIAMI BEACH</city>
            <stateOrCountry>FL</stateOrCountry>
            <stateOrCountryDescription>FLORIDA</stateOrCountryDescription>
            <zipCode>33139</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>7868884550</issuerPhoneNumber>
        <jurisdictionOfInc>DELAWARE</jurisdictionOfInc>
        <issuerPreviousNameList>
            <value>None</value>
        </issuerPreviousNameList>
        <edgarPreviousNameList>
            <value>None</value>
        </edgarPreviousNameList>
        <entityType>Corporation</entityType>
        <yearOfInc>
            <withinFiveYears>true</withinFiveYears>
            <value>2018</value>
        </yearOfInc>
    </primaryIssuer>

    <relatedPersonsList>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Gabriel</firstName>
                <lastName>Tirouflet</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>Fluchtgasse 6/7</street1>
                <city>Wien</city>
                <stateOrCountry>C4</stateOrCountry>
                <stateOrCountryDescription>AUSTRIA</stateOrCountryDescription>
                <zipCode>A-1090</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Alejandro</firstName>
                <lastName>Malbran</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>9 Island Avenue 1210</street1>
                <city>Miami Beach</city>
                <stateOrCountry>FL</stateOrCountry>
                <stateOrCountryDescription>FLORIDA</stateOrCountryDescription>
                <zipCode>33139</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Jakob</firstName>
                <lastName>Glatz</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>Johannesgasse 23</street1>
                <city>Wien</city>
                <stateOrCountry>C4</stateOrCountry>
                <stateOrCountryDescription>AUSTRIA</stateOrCountryDescription>
                <zipCode>A-1010</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Vladimir</firstName>
                <lastName>Soha</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>Nizza Paradise Residence</street1>
                <street2>Via Guidino 4, App. 4.1</street2>
                <city>Lugano</city>
                <stateOrCountry>V8</stateOrCountry>
                <stateOrCountryDescription>SWITZERLAND</stateOrCountryDescription>
                <zipCode>CH-6900</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Matias</firstName>
                <lastName>Bullrich</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>6 East 65th Street</street1>
                <city>New York</city>
                <stateOrCountry>NY</stateOrCountry>
                <stateOrCountryDescription>NEW YORK</stateOrCountryDescription>
                <zipCode>10065</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
    </relatedPersonsList>

    <offeringData>
        <industryGroup>
            <industryGroupType>Other</industryGroupType>
        </industryGroup>
        <issuerSize>
            <revenueRange>Decline to Disclose</revenueRange>
        </issuerSize>
        <federalExemptionsExclusions>
            <item>06b</item>
        </federalExemptionsExclusions>
        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>true</isAmendment>
                <previousAccessionNumber>0001794834-19-000001</previousAccessionNumber>
            </newOrAmendment>
            <dateOfFirstSale>
                <value>2019-11-04</value>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>false</moreThanOneYear>
        </durationOfOffering>
        <typesOfSecuritiesOffered>
            <isEquityType>true</isEquityType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
            <clarificationOfResponse></clarificationOfResponse>
        </businessCombinationTransaction>
        <minimumInvestmentAccepted>4998</minimumInvestmentAccepted>
        <salesCompensationList></salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>Indefinite</totalOfferingAmount>
            <totalAmountSold>99208</totalAmountSold>
            <totalRemaining>Indefinite</totalRemaining>
            <clarificationOfResponse></clarificationOfResponse>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>4</totalNumberAlreadyInvested>
        </investors>
        <salesCommissionsFindersFees>
            <salesCommissions>
                <dollarAmount>0</dollarAmount>
            </salesCommissions>
            <findersFees>
                <dollarAmount>0</dollarAmount>
            </findersFees>
            <clarificationOfResponse></clarificationOfResponse>
        </salesCommissionsFindersFees>
        <useOfProceeds>
            <grossProceedsUsed>
                <dollarAmount>12000</dollarAmount>
            </grossProceedsUsed>
            <clarificationOfResponse></clarificationOfResponse>
        </useOfProceeds>
        <signatureBlock>
            <authorizedRepresentative>false</authorizedRepresentative>
            <signature>
                <issuerName>Gradian Diagnostics Inc</issuerName>
                <signatureName>/s/ Gabriel Tirouflet</signatureName>
                <nameOfSigner>Gabriel Tirouflet</nameOfSigner>
                <signatureTitle>CEO</signatureTitle>
                <signatureDate>2020-12-23</signatureDate>
            </signature>
        </signatureBlock>
    </offeringData>
</edgarSubmission>
