價格：免費
檔案大小：1.9 MB
版本需求：需要 iOS 7.0 或以上版本。與 iPhone、iPad 及 iPod touch 相容。
支援語言：英語
Gemstones and Diamonds have the most characteristic of nature's beautiful creations: perfect crystals, with no two alike. Here’s an entire guide to the glittering world of colourful gemstones, Diamonds and jewels by GemTrove
支援平台：iPhone