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GIA certifiedGIA certified

5.50 Carat Blue Cushion Sapphire

Sapphire

Blue Color

10.5 x 9.4 mm

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Learn about your gemstone

Shape
Cushion · Faceted
Gemstone
Sapphire
Measurements
10.5 x 9.4 mm
Carat
5.50 ct
Treatment
Heated
Color
Blue
Gemstone type
Natural, earth-mined

Sapphire at a glance

September birthstone

Sapphire is corundum, second only to diamond in hardness. Blue is the classic, but it comes in almost every color; red corundum is ruby.

Mineral: Corundum

Hardness

9 on the Mohs scale

Everyday wear. Hard enough for a ring worn every day. Clean it with warm soapy water and a soft brush.

Colors

This one is blue
  • Blue
  • Pink
  • Yellow
  • Orange
  • Purple
  • Teal
  • Green
  • White

Media & Reviews

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Ratings & Reviews

5.0out of 5

Based on 8,565 reviews

m blas
16 hours ago
Couldn’t recommend enough, amazing customer service! Great prices and jewelry
Phillip
11 hours ago
Great work!! Timely delivery!! Thank you!!
Silas Borrmann
Today
Customer service and the whole ordering process was excellent. I was able to follow each step of the way on the ring and my fiancée loves it!
Joseph
14 hours ago
Perfect ring. Great price. She absolutely loved it
D Suss
2 days ago
Easy to understand order pay and receive
Gerardo
19 hours ago
Great customer service and product. Thank you for your help
Aaron Caniglia
6 days ago
Very good customer service , excellent product and prompt safe shipping couldn't ask for more !
Chris Lichtman
20 hours ago
Sent my picks to the free gemologist at Rare Carat and she flagged two with weak light performance. Ended up with a 1.2 carat round for a few thousand less than a local jeweler quoted me.
Noah Jebe
6 days ago
I got exactly what i ordered for a good price and she got her dream ring!!
Kyle
Today
I would recommend Rare Cart the quality is exceptional and outstanding.