Decent Colors in White Base… No Extra Charge To Drill - Just Ask! No Extra Charge For Sterling Silver Pinch Bail - Just Ask! Origin: Coober Pedy; Australia… Appx. Size: 15 x 8.7 mm - 3 mm Thick… Appx. Weight: 2.4 Ct…. Solid, Natural, Untreated, Mined Opal…NO Doublets or Triplets All My Pictures Are Taken in Full Sun & LED Desk Lamp - No Photoshop All Stones Are Cut & Polished By Me, Unless Noted Australian opals often show better color in indoor room lighting… Some Common Opal Terminology Directional Stone - Colors Flash With Stone Held At Certain Angles Contra-Luz Colors - Needs Light From The Side, Or From Behind To Show Color Play Hydrophane - Stone Will Absorb Water, Usually Going Clear When Wet Natural - 100% Mined, Untreated, Unassembled RETURNS: Return Any Stone, For Any Reason, I Give 100% Refund! I want you to LOVE my opals! 2.4 Ct. Opal - Coober Pedy, Australia 15 X 8.7 Mm Natural