Ruby – Lab-made, Faceted, Pink, 5.59 ct

Large natural rubies are very rare and expensive. On the other hand, synthetic or lab-created rubies are far more affordable. Synthetic gems have the same optical and physical properties as their natural counterparts, but they're manufactured in laboratories. 5.59-ct synthetic ruby. Photo courtesy of liveauctionners.com and Kissing Auction.

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Credit: Kissing Auction