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OTi by Presidium enhances the diamond authentication process by accurately identifying natural diamonds from synthetics, like lab grown diamonds. This tool is essential with the increase in popularity of lab-grown diamonds. With its dual technologies of Optical/Thermal testing in a single probe, it provides a cost-effective and fast test. The OTi helps to identify colorless diamonds against CVD/HPHT lab-grown colorless diamonds, all types of moissanites, and all common diamond simulants such as Glass, Sapphire and Cubic Zirconia (CZ). It tests loose or mounted diamonds in any jewelry setting. The Replaceable Probe Technology minimizes equipment downtime. The compact and portable design is perfect for on-the-spot testing.

The Beverage People of Santa Rosa, located in Sonoma County, sells supplies for making wine, brewing beer, cheese, mead, cider, kombucha, vinegar, sauerkraut, kimchi, and many other fermented foods!

Browse our luxurious, affordable and inexpensive party favors and personalized gifts. Shop thousands of party favor ideas in a wide array of colors, designs and themes for all life's celebrations.