All genuine Optima Gem products come with our certificate of quality and authenticity upon request.
Fine Cut = Precision cut or visually imitates a precision cut. These stones have equal and symmetrical faceting with proper cutting angles ("critical angle') and depth. Depth is between 60% and 70% of size listed. Size can vary +-0.1mm.
AAA = eye clean, any inclusions will not be visible to the eye.
Optima Gem is a US based small business that has provided honest, accurately graded gemstones for over 25 years. Satisfaction Guaranteed.
A deep rich red with flashes of hot pink cut from premium rough selected to best imitate the highest end Burma material. These gems are created by the Flame Fusion process and have essentially the same physical properties as natural Ruby. Ruby is the July and Capricorn birthstone. Our gems are calibrated for easy design for the artist and use in standard settings by the jeweler, goldsmith or silversmith.
Our purpose is to champion and campaign for the sustainable delivery of water level management, offering guidance, advice and support to our members across the UK, and informing the public about our members’ essential work.
We hope you find our website helpful and informative, and if you have any queries please do contact us for assistance.
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Become a member
Membership is open to public authorities, organisations and companies that have a direct interest in water level management, flood risk management and land drainage, from a legislative, technical or operational standpoint. Or if you just have an interest in water level and flood management then this may be for you too.
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