Pima Cotton Duvet Cover White Damask by Charter Club Full Queen v Soft & Quality

High quality pima cotton duvet cover , soft to the touch fabric. Condition excellent, looked unused, was just washed. Size is 96" x 90" for full or queen. Button edge . Clear white color. One Tiny green thread, original 'flaw', not a stain - see pic. No stains, wear or damage. Luxurious feel. Thread count not marked - currently similar sets are on the Macy's website at 550 and 800 thread counts, it feels like at least 550.