Montana Color-Change Sapphire, Diamond, Platinum Ring Stones: Oval-shaped color-change sapphire weighing 1.61 carats; full and baguette-cut diamonds weighing a total of 0.50 carat Metal: Platinum Gross Weight: 5.90 grams Size: 7-1/2 (sizeable) GIA Report # 6321812646, dated May, 28, 2019, stating Natural Corundum, Natural Sapphire, Gray-Green changing to Purple color, USA Montana origin, No Indications of Heating HID03101062020品相报告: Diamonds:Avg Color: J-K-LAvg Clarity: SIShape(s): Full, BaguetteCount: 26 - 50Colored Gems:Certified Gems: Gem: 1Lab: GIACertification #: 6321812646Carat: 1.61Shape: OvalOrigin: USA (Montana)Treatment: No Indications of HeatingType: Natural Corundum, Natural SapphireMetals:PlatinumOverall Condition: Very GoodCondition Notes: A dainty ring with an alluring color-change gem offers a bit of mystique, right? Marked Pt900 161 050, tests platinum with XRF technology. Stone weights are known and marked in shank. Sapphire shows minor natural inclusions and some nicks on facet junctions. Heritage Auctions strongly encourages in-person inspection of items by the bidder. Statements by Heritage regarding the condition of objects are for guidance only And should Not be relied upon as statements of fact, And do Not constitute a representation, warranty, Or assumption of liability by Heritage. All lots offered are sold "As Is"