Random triples
| Subject | Object |
|---|---|
| gptkb:Yogo_Sapphire_Mine | high quality |
| gptkb:Padparadscha_Sapphire | Varies by source |
| gptkb:natural_topaz | evaluated based on cut, clarity, color, and carat weight |
| gptkb:Montepuez_Ruby_Mining_Ltd. | high-quality rubies |
| gptkb:Mogok_mine | exceptional clarity |
| gptkb:The_Imperial_Green_Jadeite_Necklace | top quality jadeite |
| gptkb:Kagem_Mine | high-quality emeralds |
| gptkb:Pte._Fluorite | high-quality specimens are cut and polished for gemstones |