Try these curated collections

Blank U.S. Stock certificate issued in 1914.  Most of the certificate has been removed, so just the boarder remains. **not under copyright**
Green certificate or diploma frame
Stock Vector Illustration: Guilloche elements for certificate or diploma / currency and money design / vector / CMYK color / All lines and color are easy editable
Blanked Stock Certificate.
certificate or coupon template with detailed border and additional design elements (DIN format)
Classic guilloche background like those seen on diplomas, stock certificates, etc.
Grunge certificate background. Vector illustration
Classic guilloche background like those seen on diplomas, stock certificates, etc.
Certificate vector icon, diploma symbol. Modern, simple flat vector illustration for web site or mobile app
Classic guilloche background like those seen on diplomas, stock certificates, etc.
Green certificate template. Vertical. Additional design elements.
Green certificate template. Horizontal. Additional design elements.
Vector illustration of detailed certificate
Certificate abstract template background
Classic guilloche background like those seen on diplomas, stock certificates, etc. For more see "Guilloche" in my gallery.
Template that is used in diplomas, certificate, and currency with floral elements. Vector illustration
Diploma or Certificate Vector Template with Custom Typography
Classic guilloche background like those seen on diplomas, stock certificates, etc. For more see "Guilloche" in my gallery.
Vector illustration of gold detailed certificate
Certificate Template. Diploma of modern design or gift certificate. Frame from guilloche pattern. Elegant and expensive design. Vector illustration.
Vector illustration of detailed certificate
Certificate template. Diploma of modern design or gift certificate. Vector illustration.
Vector pattern that is used in currency and diplomas
Secured document background. Vector guilloche.
Certificate. Template diploma currency border. Award background Gift voucher. Vector illustration.
Certificate or diploma retro vintage design template
Gold horizontal certificate template with additional design elements
Blue vertical certificate template with additional design elements
Vector illustration of detailed gold certificate
Investment bond or stock obligation document with seal stamp and money flat cartoon illustration, legal grant agreement, financial heritage inheritance paper certificate, award idea image
Certificate icon. Certificate symbol. Flat design. Stock - Vector illustration
certificate icon or logo isolated sign symbol vector illustration - high quality black style vector icons
Vector certificate template.
Vector illustration of detailed certificate
Wall of certificates icon in flat style isolated on white background. Office furniture and interior symbol stock vector illustration.
Abstract guilloche pattern (vector complicated red line texture). Blank background useful for business layout, backdrop for design project certificate, diploma, official document, formal paper
Green certificate or diploma template, moder isolated design.
Vector illustration of detailed certificate
Certificate. Template diploma currency border. Award background Gift voucher. Vector illustration.
Wall of certificates icon in cartoon style isolated on white background. Office furniture and interior symbol stock vector illustration.
Vector illustration of gold detailed certificate.
certificate template with luxury and modern pattern,diploma,Vector illustration
certificate template with clean and modern pattern,Vector illustration
Vector illustration of detailed certificate
Document of certificate with award, linear outline icon. White paper symbol on gray round button or badge with shadow
certificate template with luxury and modern pattern,diploma,Vector illustration
Certificate. Vector pattern that is used in currency and diplomas
Certificate. Template diploma currency border. Award background Gift voucher. Vector illustration.
Light green blank certificate template
certificate template with clean and modern pattern,Vector illustration
Diploma certificate Icon Isolated on White Background
Classic guilloche background like those seen on diplomas, stock certificates, etc.
Vector certificate template.
Premium set of shares [S] icons. Simple shares icon pack. Stroke vector illustration on a white background. Modern outline style icons collection of Diploma, Ipo, Certificate
Bond icon line symbol. Isolated  illustration of  icon sign concept for your web site mobile app logo UI design.
Vector illustration of gold detailed certificate
Certificate icon. Diploma of gift certificate. Vector illustration.

Search for "blank stock certificate" in these categories

Gold vertical certificate template with additional design elements
Certificate. Design Gray. Vector pattern that is used in currency and diplomas
certificate template with luxury and modern pattern,diploma,Vector illustration
Modern elegant blue and gold diploma certificate template. Use for print, certificate, diploma, graduation
certificate icon or logo isolated sign symbol vector illustration - high quality black style vector icons
Vector illustration of detailed certificate
certificate template with additional design elements
Template that is used in certificate, currency and diplomas. Vector illustration
Certificate vector template design. Diploma design graduation, award, success.
Certificate. Vector pattern that is used in currency and diplomas
Gold horizontally certificate template with additional design elements
Elegant blue and gold diploma modern certificate template.Use for print, certificate, diploma, graduation
Vector illustration of detailed cerificate
certificate template with luxury and modern pattern,diploma,Vector illustration
Editable vector certificate template with ornamental border
Brown money style rosette. Vector Illustration. Detailed.
Certificate or diploma template
Vector illustration of detailed certificate
certificate template with luxury and modern pattern,diploma,Vector illustration
Stock Vector Illustration: Guilloche elements for certificate or diploma / currency and money design / vector / CMYK color / All lines and color are easy editable
Vector illustration of detailed certificate
Certificate template with additional design elements
Vector certificate template
Certificate vector icon, diploma symbol. Modern, simple flat vector illustration for web site or mobile app
Luxury certificate template
Certificate retro design template
Vector illustration of detailed certificate
Certificate. Template diploma currency border. Award background Gift voucher. Vector illustration. - Vector
retro frame certificate template Vector
Certificate. Template diploma currency border. Award background Gift voucher. Vector illustration.
certificate template
Vector certificate template.
Certificate of appreciation template, gold and Black color. Clean modern certificate with gold badge. Certificate border template with luxury and modern line pattern.
Vector illustration of multicolored detailed certificates
Vector illustration of detailed certificate
Vector illustration of detailed gold cerificate
Certificate. Template diploma currency border. Award background Gift voucher. Vector illustration.
Elegant certificate or diploma retro vintage design
Colorful Certificate template
Classic guilloche background like those seen on diplomas, stock certificates, etc. For more see "Guilloche" in my gallery.
Vintage retro frame certificate background design template, gold detailed certificate, Gold photo frame with corner thailand line floral for picture,
Certificate retro design template
Blue horizontal certificate template with additional design elements
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