By Michael Oleaga / m.oleaga@latinospost.com (staff@latinospost.com) | First Posted: Jun 03, 2013 05:53 PM EDT

The rollercoaster ride that is Amazon's pricing of the Nokia Lumia 920 continues.

As Latinos Post reported on Friday, Amazon had listed the Windows Phone 8 smartphone at $599.99 for its black and cyan models when choosing the "Without a Service Plan." Meanwhile, the white, yellow and red models remained at $449.99.

As of today, the black and cyan models' reverted back to the $449.99 price tag again. In fact, the cyan model is listed as "unavailable," running out of stock as of Monday afternoon.

"We don't know when or if this item will be back in stock," writes Amazon in regards to the cyan variant.

Current AT&T customers can purchase the Lumia 920 on Amazon for $39.99 for either an individual plan or family plan, regardless of the smartphone's color. New customers can obtain the Lumia 920 at $19.99 when signing a two-year contract with exclusive carrier AT&T for either an individual plan or family plan.

The on-contact prices on Amazon are still lower compared to AT&T Online. The official AT&T website has the Lumia 920 at $99.99 when signing a two-year contract. A one-year contract with AT&T will increase the price to $349.99 while a month-to-month price will equal the Amazon's "Without a Service Plan" price tag - $449.99.

The Lumia 920 smartphone has a screen size of 4.5 inches, 32GB of internal storage with 1GB of RAM, an 8-megapixel rear-facing camera with 3,264x2,448 pixels with LED flash, Bluetooth 4.0, an NFC chip and a 2,000 mAh battery capacity.

Related Articles:

- For the reviews round up of the Lumia 920, click here.

- For the drop test results of the Lumia 920, click here.

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