The first version of this missile, with France's first satellite " Astérix " was launched on 26 November 1965 in Hammaguir, had the first stage of the Emeraude rocket from 10 meters in length, 1.4 meters in diameter and a weight of 14.7 tons. Your engine type lrba Vexin supplied for 93 seconds a thrust of 269 kN. The second stage was 4.7 feet long and had a diameter of 80 centimeters. She weighed 2.9 tons and 44 seconds long developed a thrust of 165 kN. The third stage had a length of 2 meters and a diameter of 65 centimeters. My weight was 709 kg. It burned for 45 seconds and this developed a thrust of 27 kN to 53 kN. A fully assembled diamond A was 18.95 meters high and weighed 18.4 tons.
The Diamond B was an improved version of the diamond A with more thrust. Their first stage was 14.2 feet long, had a diameter of 1.4 meters and weighed 20.1 tons. Your engine developed as a function of altitude thrust of 316 kN to 400 kN for 116 seconds. The second stage of the Diamond B corresponded to the Diamond A. The third stage was 1.67 meters long and had a diameter of 80 centimeters. She developed for 46 seconds of thrust 24 kN. A fully assembled diamond B was 23.5 meters high and weighed 24.6 tons.
The diamond BP4, whose development began in January 1972, and had the same first and third level as the diamond as your second stage, which was derived from an SLBM, was 2.28 meters long and 1.5 meters in diameter and had developed for 55 seconds a thrust of 180 kN.