01Nov Facts about Citrine


Citrine is the yellow variety of macrocrystalline quartz and comes in a range of yellow to orange colours. It can be very pale through to vivid. The colour comes from a trace element of iron…

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06Oct Bristol Gem Fair (October 2023)


On Tuesday 17th October, I will be visiting Bristol for a gem fair at Clifton Rocks.There will be a range of gemstones on display from my many fully traceable source countries, including Sri Lanka, Australia…

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05Aug Chicago Responsible Jewelry Conference & Gem Boutique 2023


On Friday 11th and Saturday 12th August, Nineteen48 will be taking part in one of the panels at the Chicago Responsible Jewelry Conference.https://www.chiresponsiblejewelryconference.com/We will be discussing how gem traders working in the source countries can…

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12Feb What does ChatGPT think about Sri Lankan (Ceylon) sapphires?


The blog post content below about Sri Lankan sapphires was automatically generated using the ChatGPT AI chatbot as an experiment to determine the quality of the output. What do you think?There are certainly some aspects…

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08Sep Gem Fair in Edinburgh with Gemstones Brazil


On Monday 19th and Tuesday 20th September, Gemstones Brazil and Nineteen48 are hosting an ethical gem fair in Edinburgh.This is a collaborative partnership between two of the UK’s leading suppliers of responsibly sourced gemstones, Stuart…

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14May Penzance Gem Fair at Justin Duance


On Friday 20th May, we will be at Justin Duance Jewellery in Penzance, Cornwall, for a gem fair from 11am to 3pm.There will be a range of gemstones to buy, including sapphire, ruby, opal, aquamarine,…

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29Mar Brilliant Earth and Moyo Gems Collaboration


The Moyo Gems project has achieved another significant milestone with the announcement that US-based jewellery e-tailer, Brilliant Earth, is now offering their customers the option to create beautiful pieces of jewellery using Moyo gemstones.The initial…

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04Mar Don Ariyaratna 02/11/47 - 21/01/21


On January 21st 2021, we lost our friend and gemmology mentor, Don Ariyaratna, to a combination of coronavirus and pneumonia. Below are some of Stuart's memories of Don..."Don had been my gemmology tutor for the…

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01Mar Ethical Gem Fair Tucson 2021 - Watch the Videos


From Wednesday 10th to Saturday 13th February, we joined eight other gem traders for a virtual gem fair.The key sessions included a conversation about Moyo Gems when we were joined by our commercial partner Monica…

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03Jan Basic Gemstone Terminology


If you are new to the world of gemstones, here are a few terms and definitions that you might find useful.Carat (ct) - a measure of weight of gemstones. One carat is a fifth of…

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