GUILLEMIN & SOULAINE Ring In 18k yellow gold, set with a rare oval ruby and six piriform diamonds Weight of the ruby: 6.917 cts TDD: 49, Gross weight: 5.77 g SSEF certificate (2023): origin Vietnam, indications of heat treatment, high saturation red colour A 6.917 cts ruby, pear-shaped diamond and 18k yellow gold ring, by Guillemin & Soulaine SSEF Certificate : Vietnam origin, indications of heating, red colour of strong saturation CONDITION REPORT : Very good condition Waist ring Unsigned, Guillemin & Soulaine hallmark Ruby size: 10.99 x 8.59 x 8.21 mm In an SJ Phillips jewellery box CONDITION REPORT : Very good condition Ring sizer Unsigned, Guillemin & Soulaine jeweller's hallmark Meas. of the ruby : 10.99 x 8.59 x 8.21 mm In a SJ Phillips box