diff --git a/app/code/Magento/Catalog/Model/Product/Option/Validator/DefaultValidator.php b/app/code/Magento/Catalog/Model/Product/Option/Validator/DefaultValidator.php
index 1e5c7f76d829b..d1fe4c570dc75 100644
--- a/app/code/Magento/Catalog/Model/Product/Option/Validator/DefaultValidator.php
+++ b/app/code/Magento/Catalog/Model/Product/Option/Validator/DefaultValidator.php
@@ -132,7 +132,7 @@ protected function validateOptionType(Option $option)
      */
     protected function validateOptionValue(Option $option)
     {
-        return $this->isInRange($option->getPriceType(), $this->priceTypes) && !$this->isNegative($option->getPrice());
+        return $this->isInRange($option->getPriceType(), $this->priceTypes);
     }
 
     /**
diff --git a/app/code/Magento/Catalog/Model/Product/Option/Validator/Select.php b/app/code/Magento/Catalog/Model/Product/Option/Validator/Select.php
index f04ab497e1d4f..44756890b6ed7 100644
--- a/app/code/Magento/Catalog/Model/Product/Option/Validator/Select.php
+++ b/app/code/Magento/Catalog/Model/Product/Option/Validator/Select.php
@@ -83,7 +83,7 @@ protected function isValidOptionPrice($priceType, $price, $storeId)
         if (!$priceType && !$price) {
             return true;
         }
-        if (!$this->isInRange($priceType, $this->priceTypes) || $this->isNegative($price)) {
+        if (!$this->isInRange($priceType, $this->priceTypes)) {
             return false;
         }
 
diff --git a/app/code/Magento/Catalog/Test/Unit/Model/Product/Option/Validator/DefaultValidatorTest.php b/app/code/Magento/Catalog/Test/Unit/Model/Product/Option/Validator/DefaultValidatorTest.php
index 1eb5f1a2dacd2..086af60994d8d 100644
--- a/app/code/Magento/Catalog/Test/Unit/Model/Product/Option/Validator/DefaultValidatorTest.php
+++ b/app/code/Magento/Catalog/Test/Unit/Model/Product/Option/Validator/DefaultValidatorTest.php
@@ -60,10 +60,10 @@ public function isValidTitleDataProvider()
     {
         $mess = ['option required fields' => 'Missed values for option required fields'];
         return [
-            ['option_title', 'name 1.1', 'fixed', 10, new \Magento\Framework\DataObject(['store_id' => 1]), [], true],
-            ['option_title', 'name 1.1', 'fixed', 10, new \Magento\Framework\DataObject(['store_id' => 0]), [], true],
-            [null, 'name 1.1', 'fixed', 10, new \Magento\Framework\DataObject(['store_id' => 1]), [], true],
-            [null, 'name 1.1', 'fixed', 10, new \Magento\Framework\DataObject(['store_id' => 0]), $mess, false],
+            ['option_title', 'name 1.1', 'fixed', new \Magento\Framework\DataObject(['store_id' => 1]), [], true],
+            ['option_title', 'name 1.1', 'fixed', new \Magento\Framework\DataObject(['store_id' => 0]), [], true],
+            [null, 'name 1.1', 'fixed', new \Magento\Framework\DataObject(['store_id' => 1]), [], true],
+            [null, 'name 1.1', 'fixed', new \Magento\Framework\DataObject(['store_id' => 0]), $mess, false],
         ];
     }
 
@@ -71,20 +71,19 @@ public function isValidTitleDataProvider()
      * @param $title
      * @param $type
      * @param $priceType
-     * @param $price
      * @param $product
      * @param $messages
      * @param $result
      * @dataProvider isValidTitleDataProvider
      */
-    public function testIsValidTitle($title, $type, $priceType, $price, $product, $messages, $result)
+    public function testIsValidTitle($title, $type, $priceType, $product, $messages, $result)
     {
         $methods = ['getTitle', 'getType', 'getPriceType', 'getPrice', '__wakeup', 'getProduct'];
         $valueMock = $this->createPartialMock(\Magento\Catalog\Model\Product\Option::class, $methods);
         $valueMock->expects($this->once())->method('getTitle')->will($this->returnValue($title));
         $valueMock->expects($this->any())->method('getType')->will($this->returnValue($type));
         $valueMock->expects($this->once())->method('getPriceType')->will($this->returnValue($priceType));
-        $valueMock->expects($this->once())->method('getPrice')->will($this->returnValue($price));
+        $valueMock->expects($this->never())->method('getPrice');
         $valueMock->expects($this->once())->method('getProduct')->will($this->returnValue($product));
         $this->assertEquals($result, $this->validator->isValid($valueMock));
         $this->assertEquals($messages, $this->validator->getMessages());
@@ -126,37 +125,72 @@ public function testIsValidFail($product)
     }
 
     /**
-     * Data provider for testValidationNegativePrice
+     * Data provider for testValidPriceTypeIsValid
      * @return array
      */
-    public function validationNegativePriceDataProvider()
+    public function validPriceTypeIsValidDataProvider()
     {
         return [
-            ['option_title', 'name 1.1', 'fixed', -12, new \Magento\Framework\DataObject(['store_id' => 1])],
-            ['option_title', 'name 1.1', 'fixed', -12, new \Magento\Framework\DataObject(['store_id' => 0])],
+            ['option_title', 'name 1.1', 'fixed', new \Magento\Framework\DataObject(['store_id' => 1])],
+            ['option_title', 'name 1.1', 'fixed', new \Magento\Framework\DataObject(['store_id' => 0])],
         ];
     }
 
     /**
+     *
+     *
      * @param $title
      * @param $type
      * @param $priceType
-     * @param $price
      * @param $product
-     * @dataProvider validationNegativePriceDataProvider
+     * @dataProvider validPriceTypeIsValidDataProvider
      */
-    public function testValidationNegativePrice($title, $type, $priceType, $price, $product)
+    public function testValidPriceTypeIsValid($title, $type, $priceType, $product)
     {
         $methods = ['getTitle', 'getType', 'getPriceType', 'getPrice', '__wakeup', 'getProduct'];
         $valueMock = $this->createPartialMock(\Magento\Catalog\Model\Product\Option::class, $methods);
         $valueMock->expects($this->once())->method('getTitle')->will($this->returnValue($title));
         $valueMock->expects($this->exactly(2))->method('getType')->will($this->returnValue($type));
         $valueMock->expects($this->once())->method('getPriceType')->will($this->returnValue($priceType));
-        $valueMock->expects($this->once())->method('getPrice')->will($this->returnValue($price));
+        $valueMock->expects($this->never())->method('getPrice');
+        $valueMock->expects($this->once())->method('getProduct')->will($this->returnValue($product));
+
+        $messages = [];
+        $this->assertTrue($this->validator->isValid($valueMock));
+        $this->assertEquals($messages, $this->validator->getMessages());
+    }
+
+    /**
+     * Data provider for testInvalidPriceTypeIsFail
+     * @return array
+     */
+    public function invalidPriceTypeIsFailDataProvider()
+    {
+        return [
+            ['option_title', 'name 1.1', 'notexisting', new \Magento\Framework\DataObject(['store_id' => 1])],
+            ['option_title', 'name 1.1', 'wrongtype', new \Magento\Framework\DataObject(['store_id' => 0])],
+        ];
+    }
+
+    /**
+     * @param $title
+     * @param $type
+     * @param $priceType
+     * @param $product
+     * @dataProvider invalidPriceTypeIsFailDataProvider
+     */
+    public function testInvalidPriceTypeIsFail($title, $type, $priceType, $product)
+    {
+        $methods = ['getTitle', 'getType', 'getPriceType', 'getPrice', '__wakeup', 'getProduct'];
+        $valueMock = $this->createPartialMock(\Magento\Catalog\Model\Product\Option::class, $methods);
+        $valueMock->expects($this->once())->method('getTitle')->will($this->returnValue($title));
+        $valueMock->expects($this->exactly(2))->method('getType')->will($this->returnValue($type));
+        $valueMock->expects($this->once())->method('getPriceType')->will($this->returnValue($priceType));
+        $valueMock->expects($this->never())->method('getPrice');
         $valueMock->expects($this->once())->method('getProduct')->will($this->returnValue($product));
 
         $messages = [
-            'option values' => 'Invalid option value',
+            'option values' => 'Invalid option value'
         ];
         $this->assertFalse($this->validator->isValid($valueMock));
         $this->assertEquals($messages, $this->validator->getMessages());
diff --git a/app/code/Magento/Catalog/Test/Unit/Model/Product/Option/Validator/FileTest.php b/app/code/Magento/Catalog/Test/Unit/Model/Product/Option/Validator/FileTest.php
index 3c06db0e7ce5f..557ef7ef930dc 100644
--- a/app/code/Magento/Catalog/Test/Unit/Model/Product/Option/Validator/FileTest.php
+++ b/app/code/Magento/Catalog/Test/Unit/Model/Product/Option/Validator/FileTest.php
@@ -59,7 +59,7 @@ public function testIsValidSuccess()
         $this->valueMock->expects($this->once())->method('getTitle')->will($this->returnValue('option_title'));
         $this->valueMock->expects($this->exactly(2))->method('getType')->will($this->returnValue('name 1.1'));
         $this->valueMock->expects($this->once())->method('getPriceType')->will($this->returnValue('fixed'));
-        $this->valueMock->expects($this->once())->method('getPrice')->will($this->returnValue(10));
+        $this->valueMock->expects($this->never())->method('getPrice')->will($this->returnValue(10));
         $this->valueMock->expects($this->once())->method('getImageSizeX')->will($this->returnValue(10));
         $this->valueMock->expects($this->once())->method('getImageSizeY')->will($this->returnValue(15));
         $this->assertEmpty($this->validator->getMessages());
@@ -71,7 +71,7 @@ public function testIsValidWithNegativeImageSize()
         $this->valueMock->expects($this->once())->method('getTitle')->will($this->returnValue('option_title'));
         $this->valueMock->expects($this->exactly(2))->method('getType')->will($this->returnValue('name 1.1'));
         $this->valueMock->expects($this->once())->method('getPriceType')->will($this->returnValue('fixed'));
-        $this->valueMock->expects($this->once())->method('getPrice')->will($this->returnValue(10));
+        $this->valueMock->expects($this->never())->method('getPrice')->will($this->returnValue(10));
         $this->valueMock->expects($this->once())->method('getImageSizeX')->will($this->returnValue(-10));
         $this->valueMock->expects($this->never())->method('getImageSizeY');
         $messages = [
@@ -86,7 +86,7 @@ public function testIsValidWithNegativeImageSizeY()
         $this->valueMock->expects($this->once())->method('getTitle')->will($this->returnValue('option_title'));
         $this->valueMock->expects($this->exactly(2))->method('getType')->will($this->returnValue('name 1.1'));
         $this->valueMock->expects($this->once())->method('getPriceType')->will($this->returnValue('fixed'));
-        $this->valueMock->expects($this->once())->method('getPrice')->will($this->returnValue(10));
+        $this->valueMock->expects($this->never())->method('getPrice')->will($this->returnValue(10));
         $this->valueMock->expects($this->once())->method('getImageSizeX')->will($this->returnValue(10));
         $this->valueMock->expects($this->once())->method('getImageSizeY')->will($this->returnValue(-10));
         $messages = [
diff --git a/app/code/Magento/Catalog/Test/Unit/Model/Product/Option/Validator/SelectTest.php b/app/code/Magento/Catalog/Test/Unit/Model/Product/Option/Validator/SelectTest.php
index 046ee703c850e..924893bce23a4 100644
--- a/app/code/Magento/Catalog/Test/Unit/Model/Product/Option/Validator/SelectTest.php
+++ b/app/code/Magento/Catalog/Test/Unit/Model/Product/Option/Validator/SelectTest.php
@@ -87,7 +87,7 @@ public function isValidSuccessDataProvider()
                 ]
             ],
             [
-                false,
+                true,
                 [
                     'title' => 'Some Title',
                     'price_type' => 'fixed',
@@ -157,7 +157,6 @@ public function testIsValidateWithInvalidData($priceType, $price, $title)
     public function isValidateWithInvalidDataDataProvider()
     {
         return [
-            'invalid_price' => ['fixed', -10, 'Title'],
             'invalid_price_type' => ['some_value', '10', 'Title'],
             'empty_title' => ['fixed', 10, null]
         ];
diff --git a/app/code/Magento/Catalog/Test/Unit/Model/Product/Option/Validator/TextTest.php b/app/code/Magento/Catalog/Test/Unit/Model/Product/Option/Validator/TextTest.php
index cf31d67817684..1405e4faaace5 100644
--- a/app/code/Magento/Catalog/Test/Unit/Model/Product/Option/Validator/TextTest.php
+++ b/app/code/Magento/Catalog/Test/Unit/Model/Product/Option/Validator/TextTest.php
@@ -59,7 +59,7 @@ public function testIsValidSuccess()
         $this->valueMock->expects($this->once())->method('getTitle')->will($this->returnValue('option_title'));
         $this->valueMock->expects($this->exactly(2))->method('getType')->will($this->returnValue('name 1.1'));
         $this->valueMock->expects($this->once())->method('getPriceType')->will($this->returnValue('fixed'));
-        $this->valueMock->expects($this->once())->method('getPrice')->will($this->returnValue(10));
+        $this->valueMock->expects($this->never())->method('getPrice')->will($this->returnValue(10));
         $this->valueMock->expects($this->once())->method('getMaxCharacters')->will($this->returnValue(10));
         $this->assertTrue($this->validator->isValid($this->valueMock));
         $this->assertEmpty($this->validator->getMessages());
@@ -70,7 +70,7 @@ public function testIsValidWithNegativeMaxCharacters()
         $this->valueMock->expects($this->once())->method('getTitle')->will($this->returnValue('option_title'));
         $this->valueMock->expects($this->exactly(2))->method('getType')->will($this->returnValue('name 1.1'));
         $this->valueMock->expects($this->once())->method('getPriceType')->will($this->returnValue('fixed'));
-        $this->valueMock->expects($this->once())->method('getPrice')->will($this->returnValue(10));
+        $this->valueMock->expects($this->never())->method('getPrice')->will($this->returnValue(10));
         $this->valueMock->expects($this->once())->method('getMaxCharacters')->will($this->returnValue(-10));
         $messages = [
             'option values' => 'Invalid option value',
diff --git a/app/code/Magento/Catalog/Ui/DataProvider/Product/Form/Modifier/CustomOptions.php b/app/code/Magento/Catalog/Ui/DataProvider/Product/Form/Modifier/CustomOptions.php
index 7995926d27de5..2b75c4926516f 100755
--- a/app/code/Magento/Catalog/Ui/DataProvider/Product/Form/Modifier/CustomOptions.php
+++ b/app/code/Magento/Catalog/Ui/DataProvider/Product/Form/Modifier/CustomOptions.php
@@ -923,7 +923,7 @@ protected function getPriceFieldConfig($sortOrder)
                         'addbeforePool' => $this->productOptionsPrice->prefixesToOptionArray(),
                         'sortOrder' => $sortOrder,
                         'validation' => [
-                            'validate-zero-or-greater' => true
+                            'validate-zero-or-greater' => false
                         ],
                     ],
                 ],
diff --git a/app/code/Magento/Catalog/view/base/web/js/price-options.js b/app/code/Magento/Catalog/view/base/web/js/price-options.js
index ceeea4c878622..e86f48c93aca8 100644
--- a/app/code/Magento/Catalog/view/base/web/js/price-options.js
+++ b/app/code/Magento/Catalog/view/base/web/js/price-options.js
@@ -20,8 +20,10 @@ define([
         optionConfig: {},
         optionHandlers: {},
         optionTemplate: '<%= data.label %>' +
-        '<% if (data.finalPrice.value) { %>' +
+        '<% if (data.finalPrice.value > 0) { %>' +
         ' +<%- data.finalPrice.formatted %>' +
+        '<% } else if (data.finalPrice.value) { %>' +
+        ' <%- data.finalPrice.formatted %>' +
         '<% } %>',
         controlContainer: 'dd'
     };