撰自Triossi及Mascetti著之《BVLGARI》:「對寶格麗以言,『Modulo』定義為一個擁有明確形狀的元素,不含多餘的裝飾,並可以一系列複製,組合成同質的設計。」這個名為「Doppio Cuore」的系列創於1983年,從意大利文翻譯過來是「兩顆心」的意思,所描述的就這個兩心相扣的幾何設計。According to Triossi and Mascetti in their book BVLGARI, "for Bulgari, the 'modulo' (module) is an element of a well-defined shape, free of unnecessary ornamentation, which can be reproduced in a series and combined to form a variety of homogeneous designs." The 'Doppio Cuore' or ‘double heart’ is a module jewel design of 1983 and consists of two interlocking hearts.