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**
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.
Classic guilloche background like those seen on diplomas, stock certificates, etc.
diploma certificate template red and gold color with luxury and modern style vector image, suitable for appreciation.  Vector illustration.
Certificate vector icon, diploma symbol. Modern, simple flat vector illustration for web site or mobile app
Green certificate or diploma frame
Vector illustration of detailed gold certificate
Certificate abstract template background
Vector illustration of detailed certificate
Stock Vector Illustration: Guilloche elements for certificate or diploma / currency and money design / vector / CMYK color / All lines and color are easy editable
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
Classic guilloche background like those seen on diplomas, stock certificates, etc. For more see "Guilloche" in my gallery.
Vector illustration of gold detailed certificate
Diploma or Certificate Vector Template with Custom Typography
Certificate. Template diploma currency border. Award background Gift voucher. Vector illustration.
Vector pattern that is used in currency and diplomas
Vector illustration of gold detailed certificate
Vector illustration of detailed certificate
Certificate icon. Certificate symbol. Flat design. Stock - Vector illustration
Secured document background. Vector guilloche.
Grunge certificate background. Vector illustration
Certificate or diploma retro vintage design template
Green certificate template. Vertical. Additional design elements.
Blue vertical certificate template with additional design elements
Classic guilloche background like those seen on diplomas, stock certificates, etc.
Vector certificate template.
Gold horizontal certificate template with additional design elements
Abstract guilloche pattern (vector complicated red line texture). Blank background useful for business layout, backdrop for design project certificate, diploma, official document, formal paper
Certificate. Template diploma currency border. Award background Gift voucher. Vector illustration.
Vector illustration of detailed certificate
Wall of certificates icon in cartoon style isolated on white background. Office furniture and interior symbol stock vector illustration.
Certificate Template. Diploma of modern design or gift certificate. Frame from guilloche pattern. Elegant and expensive design. Vector illustration.
certificate template with luxury and modern pattern,diploma,Vector illustration
certificate template with clean and modern pattern,Vector illustration
Vector illustration of detailed certificate
Certificate icon. Diploma of gift certificate. Vector illustration.
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.
Vector illustration of detailed certificate
Elegant blue and gold diploma modern certificate template.Use for print, certificate, diploma, graduation
Certificate template. Diploma of modern design or gift certificate. Vector illustration.
Certificate. Template diploma currency border. Award background Gift voucher. Vector illustration.
Certificate. Vector pattern that is used in currency and diplomas
Green certificate template. Horizontal. Additional design elements.
Wall of certificates icon in flat style isolated on white background. Office furniture and interior symbol stock vector illustration.
certificate template with luxury and modern pattern,diploma,Vector illustration
certificate template with clean and modern pattern,Vector illustration
Diploma certificate Icon Isolated on White Background
Light green blank certificate template
Certificate or diploma United States of America flag design
Classic guilloche background like those seen on diplomas, stock certificates, etc.
Certificate. Design Gray. Vector pattern that is used in currency and diplomas
Grey Sample certificate or diploma. With background. Customizable, Easy to edit and change colors. Superior design.
Grey Certificate template or diploma template. Money Pattern design. Customizable, Easy to edit and change colors. Easy to print.
certificate template with additional design elements
Gold vertical certificate template with additional design elements
Gold horizontally certificate template with additional design elements

Search for "blank stock certificate" in these categories

Elegant certificate or diploma retro vintage design
Certificate or diploma template
Vector illustration of detailed certificate
Certificate vector icon, diploma symbol. Modern, simple flat vector illustration for web site or mobile app
certificate template with luxury and modern pattern,diploma,Vector illustration
Certificate. Vector pattern that is used in currency and diplomas
Vector illustration of detailed cerificate
Certificate retro design template
Official certificate with beige simple border. Business beige modern design. Gold emblem.
certificate template with luxury and modern pattern,diploma,Vector illustration
Green certificate or diploma template, moder isolated design.
Vector certificate template
Modern elegant blue and gold diploma certificate template. Use for print, certificate, diploma, graduation
Certificate. Template diploma currency border. Award background Gift voucher. Vector illustration.
Vector illustration of detailed certificate
Certificate template with additional design elements
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 retro design template
Luxury certificate template
Document of certificate with award, linear outline icon. Black icon on white background
Editable vector certificate template with ornamental border
Certificate. Template diploma currency border. Award background Gift voucher. Vector illustration.
Vector illustration of detailed certificate
Vintage retro frame certificate background design template, gold detailed certificate, Gold photo frame with corner thailand line floral for picture,
Certificate. Template diploma currency border. Award background Gift voucher. Vector illustration.
Blue horizontal certificate template with additional design elements
Vector certificate template.
Vector illustration of detailed certificate
Template that is used in certificate, currency and diplomas. Vector illustration
Certificate retro design template
Retro vintage certificate or diploma vector template
Certificate. Template diploma currency border. Award background Gift voucher. Vector illustration.
certificate template with luxury and modern pattern,diploma,Vector illustration
 blank certificate template
Colorful Certificate template
Certificate. Template diplomas, currency. Vector
Vector illustration of multicolored detailed certificates
Certificate. Template diploma currency border. Award background Gift voucher. Vector illustration. - Vector
Vector illustration of detailed gold cerificate
Vector pattern that is used in currency and diplomas
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