AN UNMOUNTED RUBY Jewellery > Rings > Gemstone Rings 28 Cts (marked)
Description
28 Cts (marked)
each depicting figures in landscape with calligraphic text above
wear to boards and binding
Elementa Matheseos Universae (Elements of Universal Mathematics)
Fair vintage condition
AN UNMOUNTED RUBY Jewellery > Rings > Gemstone Rings 28 Cts (marked)Featuring a 1. 30 Cts marquise mixed cut ruby, measuring approximately 10. 28 x 5. 45 x 2. 98 mm. Accompanied with Nan Yang Gemological Institute Report No. 32890267 dated August 28, 2025 stating that there are indications of heating and that natural rubies are commonly heated.
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