Yes ... around 2009 BC :-) ..when they stipulated a Tola of gold is about 100 Rattis ..

A Ratti is a traditional Indian unit of measurement for mass. It is based on the weight of the Gunja seed (Abrus precatorius), a small, vibrant red seed with a black spot.

* Historical Use: Historically, due to their consistent weight, Gunja seeds were used in India to weigh precious metals like gold and silver, especially before the advent of modern weighing tools.

* Standardized Weight: The standardized weight of one Ratti is approximately 0.1215 grams or 1.8 to 1.75 grains. However, other conversions exist, with some jewelers considering 1 Ratti to be around 121.5 milligrams or 0.1215 grams, and in astrological contexts sometimes around 182 milligrams or 0.18 grams.

* Relationship to other units:

* 8 Rattis = 1 Masha

* 12 Mashas = 1 Tola (approximately 11.6 grams)

* Approximately 0.90 to 0.91 carats = 1 Ratti

* Approximately 1.11 carats = 1 Ratti (another conversion factor)

* Astrological Significance: In Vedic astrology, the weight of gemstones is often recommended in Rattis. Astrologers may suggest a specific Ratti weight based on the wearer's body weight and the gemstone's properties.