Rubies
Emeralds
Sapphires
Gemstones
+1-212-869-1165
contact us
Home
/
All Sapphire Rings

All Sapphire Rings

Browse hundreds of beautiful sapphire rings in blue, yellow, pink, padparadscha, and other unique colors. Whether you’re looking for a gift, a ring for everyday wear, or a sapphire engagement ring, you’ll find the perfect piece in our collection. Interested in creating a custom sapphire ring? Select a sapphire or search our ring settings to design your ring from start to finish.

Filters 
Color
Design style
Metal
Carat
Center Stone Shape
Color intensity
Enhancement
Price
Origin
Clarity
Cutting style
Certificate type
Availability
33186 results
Change view:
Sort by:
Select
Change view:
0.70 Ct. Blue Sapphire Ring, 18K White Gold 1
0.70 Ct. Blue Sapphire Ring, 18K White Gold 2
0.70 Ct. Blue Sapphire Ring, 18K White Gold 3
0.70 Ct. Blue Sapphire Ring, 18K White Gold 4
0.70 Ct. Sapphire 18K White Gold ring
Item ID: 154572
$2,146
View Details
2.03 Ct. Greenish Blue Sapphire Ring, 18K White Gold 1
2.03 Ct. Greenish Blue Sapphire Ring, 18K White Gold 2
2.03 Ct. Greenish Blue Sapphire Ring, 18K White Gold 3
2.03 Ct. Greenish Blue Sapphire Ring, 18K White Gold 4
2.03 Ct. Sapphire 18K White Gold ring
Item ID: 202900
$4,828
View Details
5.69 Ct. Color Change Sapphire Ring, 18K White Gold 1
5.69 Ct. Color Change Sapphire Ring, 18K White Gold 2
5.69 Ct. Color Change Sapphire Ring, 18K White Gold 3
5.69 Ct. Color Change Sapphire Ring, 18K White Gold 4
5.69 Ct. Sapphire 18K White Gold ring
Item ID: 97239
$12,384
View Details
0.57 Ct. Purple Sapphire Ring, 18K White Gold 1
0.57 Ct. Purple Sapphire Ring, 18K White Gold 2
0.57 Ct. Purple Sapphire Ring, 18K White Gold 3
0.57 Ct. Purple Sapphire Ring, 18K White Gold 4
0.57 Ct. Sapphire 18K White Gold ring
Item ID: 188367
$2,323
View Details
1.10 Ct. Blue Sapphire Ring, 18K White Gold 1
1.10 Ct. Blue Sapphire Ring, 18K White Gold 2
1.10 Ct. Blue Sapphire Ring, 18K White Gold 3
1.10 Ct. Blue Sapphire Ring, 18K White Gold 4
1.10 Ct. Sapphire 18K White Gold ring
Item ID: 176978
$2,187
View Details
4.04 Ct. Color Change Sapphire Ring, 18K White Gold 1
4.04 Ct. Color Change Sapphire Ring, 18K White Gold 2
4.04 Ct. Color Change Sapphire Ring, 18K White Gold 3
4.04 Ct. Color Change Sapphire Ring, 18K White Gold 4
4.04 Ct. Sapphire 18K White Gold ring
Item ID: 95192
$11,833
View Details
0.74 Ct. Blue Sapphire Ring, 18K White Gold 1
0.74 Ct. Blue Sapphire Ring, 18K White Gold 2
0.74 Ct. Blue Sapphire Ring, 18K White Gold 3
0.74 Ct. Blue Sapphire Ring, 18K White Gold 4
0.74 Ct. Sapphire 18K White Gold ring
Item ID: 156973
$3,902
View Details
2.06 Ct. Purplish Pink Sapphire Ring, 18K White Gold 1
2.06 Ct. Purplish Pink Sapphire Ring, 18K White Gold 2
2.06 Ct. Purplish Pink Sapphire Ring, 18K White Gold 3
2.06 Ct. Purplish Pink Sapphire Ring, 18K White Gold 4
2.06 Ct. Sapphire 18K White Gold ring
Item ID: 83668
$8,723
View Details
5.69 Ct. Color Change Sapphire Ring, 18K White Gold 1
5.69 Ct. Color Change Sapphire Ring, 18K White Gold 2
5.69 Ct. Color Change Sapphire Ring, 18K White Gold 3
5.69 Ct. Color Change Sapphire Ring, 18K White Gold 4
5.69 Ct. Sapphire 18K White Gold ring
Item ID: 97397
$13,015
View Details
4.10 Ct. Blue Sapphire Ring, 18K White Gold 1
4.10 Ct. Blue Sapphire Ring, 18K White Gold 2
4.10 Ct. Blue Sapphire Ring, 18K White Gold 3
4.10 Ct. Blue Sapphire Ring, 18K White Gold 4
4.10 Ct. Sapphire 18K White Gold ring
Item ID: 183446
$22,563
View Details
4.55 Ct. Blue Sapphire Ring, 18K White Gold 1
4.55 Ct. Blue Sapphire Ring, 18K White Gold 2
4.55 Ct. Blue Sapphire Ring, 18K White Gold 3
4.55 Ct. Blue Sapphire Ring, 18K White Gold 4
4.55 Ct. Sapphire 18K White Gold ring
Item ID: 101271
$17,119
View Details
4.33 Ct. Bi Color Sapphire Ring, 18K White Gold 1
4.33 Ct. Bi Color Sapphire Ring, 18K White Gold 2
4.33 Ct. Bi Color Sapphire Ring, 18K White Gold 3
4.33 Ct. Bi Color Sapphire Ring, 18K White Gold 4
4.33 Ct. Sapphire 18K White Gold ring
Item ID: 189060
$9,284
View Details
0.48 Ct. Greenish Blue Sapphire Ring, 18K White Gold 1
0.48 Ct. Greenish Blue Sapphire Ring, 18K White Gold 2
0.48 Ct. Greenish Blue Sapphire Ring, 18K White Gold 3
0.48 Ct. Greenish Blue Sapphire Ring, 18K White Gold 4
0.48 Ct. Sapphire 18K White Gold ring
Item ID: 76286
$2,734
View Details
1.29 Ct. Yellow Sapphire Ring, 18K White Gold 1
1.29 Ct. Yellow Sapphire Ring, 18K White Gold 2
1.29 Ct. Yellow Sapphire Ring, 18K White Gold 3
1.29 Ct. Yellow Sapphire Ring, 18K White Gold 4
1.29 Ct. Sapphire 18K White Gold ring
Item ID: 202919
$3,765
View Details
3.48 Ct. Greyish Blue Sapphire Ring, 18K White Gold 1
3.48 Ct. Greyish Blue Sapphire Ring, 18K White Gold 2
3.48 Ct. Greyish Blue Sapphire Ring, 18K White Gold 3
3.48 Ct. Greyish Blue Sapphire Ring, 18K White Gold 4
3.48 Ct. Sapphire 18K White Gold ring
Item ID: 102880
$12,127
View Details
1.82 Ct. Pink Sapphire Ring, 18K White Gold 1
1.82 Ct. Pink Sapphire Ring, 18K White Gold 2
1.82 Ct. Pink Sapphire Ring, 18K White Gold 3
1.82 Ct. Pink Sapphire Ring, 18K White Gold 4
1.82 Ct. Sapphire 18K White Gold ring
Item ID: 182816
$4,446
View Details
1.01 Ct. Blue Sapphire Ring, 18K White Gold 1
1.01 Ct. Blue Sapphire Ring, 18K White Gold 2
1.01 Ct. Blue Sapphire Ring, 18K White Gold 3
1.01 Ct. Blue Sapphire Ring, 18K White Gold 4
1.01 Ct. Sapphire 18K White Gold ring
Item ID: 182562
$3,403
View Details
1.29 Ct. Yellow Sapphire Ring, 18K White Gold 1
1.29 Ct. Yellow Sapphire Ring, 18K White Gold 2
1.29 Ct. Yellow Sapphire Ring, 18K White Gold 3
1.29 Ct. Yellow Sapphire Ring, 18K White Gold 4
1.29 Ct. Sapphire 18K White Gold ring
Item ID: 205359
$3,249
View Details
3.68 Ct. Blue Sapphire Ring, 18K White Gold 1
3.68 Ct. Blue Sapphire Ring, 18K White Gold 2
3.68 Ct. Blue Sapphire Ring, 18K White Gold 3
3.68 Ct. Blue Sapphire Ring, 18K White Gold 4
3.68 Ct. Sapphire 18K White Gold ring
Item ID: 103806
$12,347
View Details
0.65 Ct. Bluish Green Sapphire Ring, 18K White Gold 1
0.65 Ct. Bluish Green Sapphire Ring, 18K White Gold 2
0.65 Ct. Bluish Green Sapphire Ring, 18K White Gold 3
0.65 Ct. Bluish Green Sapphire Ring, 18K White Gold 4
0.65 Ct. Sapphire 18K White Gold ring
Item ID: 204123
$2,440
View Details
2.04 Ct. Pink Sapphire Ring, 18K White Gold 1
2.04 Ct. Pink Sapphire Ring, 18K White Gold 2
2.04 Ct. Pink Sapphire Ring, 18K White Gold 3
2.04 Ct. Pink Sapphire Ring, 18K White Gold 4
2.04 Ct. Sapphire 18K White Gold ring
Item ID: 167373
$8,311
View Details
2.64 Ct. Color Change Sapphire Ring, 18K White Gold 1
2.64 Ct. Color Change Sapphire Ring, 18K White Gold 2
2.64 Ct. Color Change Sapphire Ring, 18K White Gold 3
2.64 Ct. Color Change Sapphire Ring, 18K White Gold 4
2.64 Ct. Sapphire 18K White Gold ring
Item ID: 176720
$3,594
View Details
4.08 Ct. Blue Sapphire Ring, 18K White Gold 1
4.08 Ct. Blue Sapphire Ring, 18K White Gold 2
4.08 Ct. Blue Sapphire Ring, 18K White Gold 3
4.08 Ct. Blue Sapphire Ring, 18K White Gold 4
4.08 Ct. Sapphire 18K White Gold ring
Item ID: 180582
$9,623
View Details
1.55 Ct. White Sapphire Ring, 18K White Gold 1
1.55 Ct. White Sapphire Ring, 18K White Gold 2
1.55 Ct. White Sapphire Ring, 18K White Gold 3
1.55 Ct. White Sapphire Ring, 18K White Gold 4
1.55 Ct. Sapphire 18K White Gold ring
Item ID: 174329
$2,792
View Details
2.06 Ct. Greenish Blue Sapphire Ring, 18K White Gold 1
2.06 Ct. Greenish Blue Sapphire Ring, 18K White Gold 2
2.06 Ct. Greenish Blue Sapphire Ring, 18K White Gold 3
2.06 Ct. Greenish Blue Sapphire Ring, 18K White Gold 4
2.06 Ct. Sapphire 18K White Gold ring
Item ID: 100334
$6,013
View Details
2.06 Ct. Green Sapphire Ring, 18K White Gold 1
2.06 Ct. Green Sapphire Ring, 18K White Gold 2
2.06 Ct. Green Sapphire Ring, 18K White Gold 3
2.06 Ct. Green Sapphire Ring, 18K White Gold 4
2.06 Ct. Sapphire 18K White Gold ring
Item ID: 162389
$5,009
View Details
2.17 Ct. Violet Sapphire Ring, 18K White Gold 1
2.17 Ct. Violet Sapphire Ring, 18K White Gold 2
2.17 Ct. Violet Sapphire Ring, 18K White Gold 3
2.17 Ct. Violet Sapphire Ring, 18K White Gold 4
2.17 Ct. Sapphire 18K White Gold ring
Item ID: 167263
$3,603
View Details
1.02 Ct. Pink Sapphire Ring, 18K White Gold 1
1.02 Ct. Pink Sapphire Ring, 18K White Gold 2
1.02 Ct. Pink Sapphire Ring, 18K White Gold 3
1.02 Ct. Pink Sapphire Ring, 18K White Gold 4
1.02 Ct. Sapphire 18K White Gold ring
Item ID: 189131
$2,995
View Details
0.94 Ct. Reddish Pink Sapphire Ring, 18K White Gold 1
0.94 Ct. Reddish Pink Sapphire Ring, 18K White Gold 2
0.94 Ct. Reddish Pink Sapphire Ring, 18K White Gold 3
0.94 Ct. Reddish Pink Sapphire Ring, 18K White Gold 4
0.94 Ct. Sapphire 18K White Gold ring
Item ID: 178850
$2,678
View Details
3.24 Ct. Blue Sapphire Ring, 18K White Gold 1
3.24 Ct. Blue Sapphire Ring, 18K White Gold 2
3.24 Ct. Blue Sapphire Ring, 18K White Gold 3
3.24 Ct. Blue Sapphire Ring, 18K White Gold 4
3.24 Ct. Sapphire 18K White Gold ring
Item ID: 113896
$16,506
View Details
6.65 Ct. Greenish Blue Sapphire Ring, 18K White Gold 1
6.65 Ct. Greenish Blue Sapphire Ring, 18K White Gold 2
6.65 Ct. Greenish Blue Sapphire Ring, 18K White Gold 3
6.65 Ct. Greenish Blue Sapphire Ring, 18K White Gold 4
6.65 Ct. Sapphire 18K White Gold ring
Item ID: 203259
$15,981
View Details
1.24 Ct. Yellow Sapphire Ring, 18K White Gold 1
1.24 Ct. Yellow Sapphire Ring, 18K White Gold 2
1.24 Ct. Yellow Sapphire Ring, 18K White Gold 3
1.24 Ct. Yellow Sapphire Ring, 18K White Gold 4
1.24 Ct. Sapphire 18K White Gold ring
Item ID: 56485
$5,748
View Details
2.06 Ct. Blue Sapphire Ring, 18K White Gold 1
2.06 Ct. Blue Sapphire Ring, 18K White Gold 2
2.06 Ct. Blue Sapphire Ring, 18K White Gold 3
2.06 Ct. Blue Sapphire Ring, 18K White Gold 4
2.06 Ct. Sapphire 18K White Gold ring
Item ID: 186529
$6,079
View Details
3.26 Ct. Blue Sapphire Ring, 18K White Gold 1
3.26 Ct. Blue Sapphire Ring, 18K White Gold 2
3.26 Ct. Blue Sapphire Ring, 18K White Gold 3
3.26 Ct. Blue Sapphire Ring, 18K White Gold 4
3.26 Ct. Sapphire 18K White Gold ring
Item ID: 183905
$9,026
View Details
2.00 Ct. Bi Color Sapphire Ring, 18K White Gold 1
2.00 Ct. Bi Color Sapphire Ring, 18K White Gold 2
2.00 Ct. Bi Color Sapphire Ring, 18K White Gold 3
2.00 Ct. Bi Color Sapphire Ring, 18K White Gold 4
2.00 Ct. Sapphire 18K White Gold ring
Item ID: 204941
$12,166
View Details
2.06 Ct. Blue Sapphire Ring, 18K White Gold 1
2.06 Ct. Blue Sapphire Ring, 18K White Gold 2
2.06 Ct. Blue Sapphire Ring, 18K White Gold 3
2.06 Ct. Blue Sapphire Ring, 18K White Gold 4
2.06 Ct. Sapphire 18K White Gold ring
Item ID: 124094
$6,202
View Details
2.67 Ct. Greenish Blue Sapphire Ring, 18K White Gold 1
2.67 Ct. Greenish Blue Sapphire Ring, 18K White Gold 2
2.67 Ct. Greenish Blue Sapphire Ring, 18K White Gold 3
2.67 Ct. Greenish Blue Sapphire Ring, 18K White Gold 4
2.67 Ct. Sapphire 18K White Gold ring
Item ID: 209196
$10,471
View Details
0.66 Ct. Blue Sapphire Ring, 18K White Gold 1
0.66 Ct. Blue Sapphire Ring, 18K White Gold 2
0.66 Ct. Blue Sapphire Ring, 18K White Gold 3
0.66 Ct. Blue Sapphire Ring, 18K White Gold 4
0.66 Ct. Sapphire 18K White Gold ring
Item ID: 184365
$2,556
View Details
3.34 Ct. Blue Sapphire Ring, 18K White Gold 1
3.34 Ct. Blue Sapphire Ring, 18K White Gold 2
3.34 Ct. Blue Sapphire Ring, 18K White Gold 3
3.34 Ct. Blue Sapphire Ring, 18K White Gold 4
3.34 Ct. Sapphire 18K White Gold ring
Item ID: 201039
$89,056
View Details
3.03 Ct. White Sapphire Ring, 18K White Gold 1
3.03 Ct. White Sapphire Ring, 18K White Gold 2
3.03 Ct. White Sapphire Ring, 18K White Gold 3
3.03 Ct. White Sapphire Ring, 18K White Gold 4
3.03 Ct. Sapphire 18K White Gold ring
Item ID: 169357
$6,975
View Details
1.45 Ct. Blue Sapphire Ring, 18K White Gold 1
1.45 Ct. Blue Sapphire Ring, 18K White Gold 2
1.45 Ct. Blue Sapphire Ring, 18K White Gold 3
1.45 Ct. Blue Sapphire Ring, 18K White Gold 4
1.45 Ct. Sapphire 18K White Gold ring
Item ID: 209463
$5,846
View Details
44.85 Ct. Blue Sapphire Ring, 18K White Gold 1
44.85 Ct. Blue Sapphire Ring, 18K White Gold 2
44.85 Ct. Blue Sapphire Ring, 18K White Gold 3
44.85 Ct. Blue Sapphire Ring, 18K White Gold 4
44.85 Ct. Sapphire 18K White Gold ring
Item ID: 141028
$777,928
View Details
5.02 Ct. Blue Sapphire Ring, 18K White Gold 1
5.02 Ct. Blue Sapphire Ring, 18K White Gold 2
5.02 Ct. Blue Sapphire Ring, 18K White Gold 3
5.02 Ct. Blue Sapphire Ring, 18K White Gold 4
5.02 Ct. Sapphire 18K White Gold ring
Item ID: 126655
$49,673
View Details
1.18 Ct. Purple Sapphire Ring, 18K White Gold 1
1.18 Ct. Purple Sapphire Ring, 18K White Gold 2
1.18 Ct. Purple Sapphire Ring, 18K White Gold 3
1.18 Ct. Purple Sapphire Ring, 18K White Gold 4
1.18 Ct. Sapphire 18K White Gold ring
Item ID: 140586
$4,173
View Details
1.25 Ct. Yellow Sapphire Ring, 18K White Gold 1
1.25 Ct. Yellow Sapphire Ring, 18K White Gold 2
1.25 Ct. Yellow Sapphire Ring, 18K White Gold 3
1.25 Ct. Yellow Sapphire Ring, 18K White Gold 4
1.25 Ct. Sapphire 18K White Gold ring
Item ID: 209928
$2,163
View Details
2.05 Ct. Bluish Green Sapphire Ring, 18K White Gold 1
2.05 Ct. Bluish Green Sapphire Ring, 18K White Gold 2
2.05 Ct. Bluish Green Sapphire Ring, 18K White Gold 3
2.05 Ct. Bluish Green Sapphire Ring, 18K White Gold 4
2.05 Ct. Sapphire 18K White Gold ring
Item ID: 193892
$4,010
View Details
2.52 Ct. Pink Sapphire Ring, 18K White Gold 1
2.52 Ct. Pink Sapphire Ring, 18K White Gold 2
2.52 Ct. Pink Sapphire Ring, 18K White Gold 3
2.52 Ct. Pink Sapphire Ring, 18K White Gold 4
2.52 Ct. Sapphire 18K White Gold ring
Item ID: 184193
$9,653
View Details
6.30 Ct. Blue Sapphire Ring, 18K White Gold 1
6.30 Ct. Blue Sapphire Ring, 18K White Gold 2
6.30 Ct. Blue Sapphire Ring, 18K White Gold 3
6.30 Ct. Blue Sapphire Ring, 18K White Gold 4
6.30 Ct. Sapphire 18K White Gold ring
Item ID: 190811
$28,630
View Details
2.07 Ct. Blue Sapphire Ring, 18K White Gold 1
2.07 Ct. Blue Sapphire Ring, 18K White Gold 2
2.07 Ct. Blue Sapphire Ring, 18K White Gold 3
2.07 Ct. Blue Sapphire Ring, 18K White Gold 4
2.07 Ct. Sapphire 18K White Gold ring
Item ID: 209602
$12,582
View Details
6.18 Ct. Padparadscha Sapphire Ring, 18K White Gold 1
6.18 Ct. Padparadscha Sapphire Ring, 18K White Gold 2
6.18 Ct. Padparadscha Sapphire Ring, 18K White Gold 3
6.18 Ct. Padparadscha Sapphire Ring, 18K White Gold 4
6.18 Ct. Sapphire 18K White Gold ring
Item ID: 182144
$45,682
View Details
1.49 Ct. Blue Sapphire Ring, 18K White Gold 1
1.49 Ct. Blue Sapphire Ring, 18K White Gold 2
1.49 Ct. Blue Sapphire Ring, 18K White Gold 3
1.49 Ct. Blue Sapphire Ring, 18K White Gold 4
1.49 Ct. Sapphire 18K White Gold ring
Item ID: 194232
$5,097
View Details
2.54 Ct. Purple Sapphire Ring, 18K White Gold 1
2.54 Ct. Purple Sapphire Ring, 18K White Gold 2
2.54 Ct. Purple Sapphire Ring, 18K White Gold 3
2.54 Ct. Purple Sapphire Ring, 18K White Gold 4
2.54 Ct. Sapphire 18K White Gold ring
Item ID: 203921
$9,025
View Details
2.93 Ct. Blue Sapphire Ring, 18K White Gold 1
2.93 Ct. Blue Sapphire Ring, 18K White Gold 2
2.93 Ct. Blue Sapphire Ring, 18K White Gold 3
2.93 Ct. Blue Sapphire Ring, 18K White Gold 4
2.93 Ct. Sapphire 18K White Gold ring
Item ID: 119316
$14,284
View Details
2.18 Ct. Blue Sapphire Ring, 18K White Gold 1
2.18 Ct. Blue Sapphire Ring, 18K White Gold 2
2.18 Ct. Blue Sapphire Ring, 18K White Gold 3
2.18 Ct. Blue Sapphire Ring, 18K White Gold 4
2.18 Ct. Sapphire 18K White Gold ring
Item ID: 94033
$15,968
View Details
1.59 Ct. Padparadscha Sapphire Ring, 18K White Gold 1
1.59 Ct. Padparadscha Sapphire Ring, 18K White Gold 2
1.59 Ct. Padparadscha Sapphire Ring, 18K White Gold 3
1.59 Ct. Padparadscha Sapphire Ring, 18K White Gold 4
1.59 Ct. Sapphire 18K White Gold ring
Item ID: 97699
$8,068
View Details
0.23 Ct. Greenish Blue Sapphire Ring, 18K White Gold 1
0.23 Ct. Greenish Blue Sapphire Ring, 18K White Gold 2
0.23 Ct. Greenish Blue Sapphire Ring, 18K White Gold 3
0.23 Ct. Greenish Blue Sapphire Ring, 18K White Gold 4
0.23 Ct. Sapphire 18K White Gold ring
Item ID: 211145
$2,097
View Details
2.54 Ct. Padparadscha Sapphire Ring, 18K White Gold 1
2.54 Ct. Padparadscha Sapphire Ring, 18K White Gold 2
2.54 Ct. Padparadscha Sapphire Ring, 18K White Gold 3
2.54 Ct. Padparadscha Sapphire Ring, 18K White Gold 4
2.54 Ct. Sapphire 18K White Gold ring
Item ID: 210413
$21,744
View Details
9.16 Ct. Blue Sapphire Ring, 18K White Gold 1
9.16 Ct. Blue Sapphire Ring, 18K White Gold 2
9.16 Ct. Blue Sapphire Ring, 18K White Gold 3
9.16 Ct. Blue Sapphire Ring, 18K White Gold 4
9.16 Ct. Sapphire 18K White Gold ring
Item ID: 190670
$187,110
View Details
1.84 Ct. Peach Sapphire Ring, 18K White Gold 1
1.84 Ct. Peach Sapphire Ring, 18K White Gold 2
1.84 Ct. Peach Sapphire Ring, 18K White Gold 3
1.84 Ct. Peach Sapphire Ring, 18K White Gold 4
1.84 Ct. Sapphire 18K White Gold ring
Item ID: 164686
$4,559
View Details
3.16 Ct. Purplish Pink Sapphire Ring, 18K White Gold 1
3.16 Ct. Purplish Pink Sapphire Ring, 18K White Gold 2
3.16 Ct. Purplish Pink Sapphire Ring, 18K White Gold 3
3.16 Ct. Purplish Pink Sapphire Ring, 18K White Gold 4
3.16 Ct. Sapphire 18K White Gold ring
Item ID: 210229
$12,744
View Details
1
...
311312313314315316317
...
554

Our Customers Love Us

See what people are saying on Google and Verified Reviews