World Best Grade Gem - Natural Amazing Color Change Alexandrite. Wish You Prosperous Happy "X-Mas" & New Year 2018!!
Mon-Fri, GMT+7 Fax: +66-2 631 8930. Collector's World Best Grade Gem - Natural Amazing Color Change Alexandrite. 100% Natural Earth Mined Gemstones!!
4.50 x 3.25 x 2.65 mm. Color Change Green To Purple Red. Is the rare, phenomenal, color-change variety of the chrysoberyl mineral, along with its cousins yellowish transparent chrysoberyl and chatoyant or cat's-eye chrysoberyl. Alexandrite's rarity is a result of its chemical makeup; alexandrite can only form when aluminum and beryllium combine with trace elements like iron, titanium and, most importantly, chromium--which causes alexandrite's color change and is very rarely found in nature.The unlikelihood of the rare element chromium being in the right place to combine with aluminum and beryllium under exactly the right conditions to create alexandrite is what makes it so rare and valuable. At 8.5 on Mohs' hardness scale, alexandrite is hard, tough, and durable enough for daily wear.
It requires no special or unusual care, so you're safe to wear and enjoy it freely. Alexandrite is green or bluish-green in daylight, changing to raspberry red or purplish-red in incandescent light. Alexandrite can also appear in yellowish-, brownish-, or grayish-green shades in daylight, with an orangish- or brownish-red counterpart in incandescent light. Because of its color change, alexandrite has sometimes been referred to as emerald by day and ruby by night.
You can be assured of receiving exactly what you order. Since our Gems come directly from the mines to our factory, our gemstones are guaranteed to be natural. Your satisfaction is our most important asset. Sellers: Add a FREE map to your listings. The item "0.43Cts CERTIFIED Natural Gem Top Green To Purple Color Change ALEXANDRITE G01" is in sale since Monday, April 22, 2019.This item is in the category "Jewelry & Watches\Loose Diamonds & Gemstones\Loose Gemstones\Alexandrite". The seller is "googlehi-tech" and is located in Bangkok, Thailand. This item can be shipped worldwide.