1. A computer-implemented method for dynamically generating an item-specific interactive electronic visualization interface, the computer-implemented method comprising: rendering, by a computer system, the electronic visualization interface for selecting and interacting with unique items, the electronic visualization interface comprising: at least one region depicting a selectable listing of unique items configured to receive a selection of a selected item; and a dynamic two-axis plot configured to depict a plurality of interactive markers corresponding to comparison items and a predicted selling price indicator; receiving electronically via the electronic visualization interface, by the computer system, a selection of a unique item of the selectable listing, wherein rendering the electronic visualization further comprises: responsive to receiving the selection of the selected unique item, determining, by the computer system, a set of comparison items, wherein the set of comparison items comprises a subset of a plurality of alternative unique items for which attribute data is stored in an electronic database, the set of comparison items comprising unique items having a similarity to the selected unique item, based at least in part on the stored attribute data, that is within a threshold level; generating, by the computer system, a predicted selling price model by analyzing a plurality of attributes of the plurality of alternative unique items, wherein the predicted selling price model is configured to enable generation of the predicted selling price indicator to be displayed on the dynamic two-axis plot; for each comparison item in the set of comparison items, determining, by the computer system, a set of marker coordinates for that comparison item, wherein each set of marker coordinates comprises a primary attribute value for the respective comparison item and a listing price for the respective comparison item; and generating the dynamic two-axis plot within the electronic visualization interface, the two-axis plot generated including the predicted selling price indicator and the plurality of interactive markers corresponding to the set of comparison items, each interactive marker depicted on the two-axis plot in accordance with the respective marker coordinates, wherein each interactive marker is configured to trigger a visible popup dialogue responsive to its being interacted with via a user input of the electronic visualization interface, the visible popup dialogue comprising information based on the stored attribute data; receiving electronically via the electronic visualization interface, by the computer system, a selection of a new selected item, the new selected item being a unique item from the selectable listing and distinct from the selected unique item; and re-rendering, by the computer system, the electronic visualization interface based on the new selected item, wherein re-rendering comprises: re-generating the dynamic two-axis plot such that the predicted selling price indicator and the plurality of interactive markers are updated in accordance with the new selected item, the updating comprising: adding new interactive markers onto the dynamic two-axis plot or removing one or more existing interactive markers of the plurality of interactive markers from the dynamic two-axis plot based on an updated determination of similarity to the new selected item; and re-generating the predicted selling price indicator based on the new selected item.