Known as the "King of Gems" in Sanskrit, ruby is one of the most desired and valuable gemstones, prized as far back as biblical times. Ruby is the most valuable variety of corundum and commands the highest per-carat price of any colored stone. The trace element chromium is responsible for its color, which ranges from orangy red to purplish red — with pure, vivid red to slightly purplish red being the most highly valued. Some inclusions are to be expected, as inclusion-free rubies are exceptionally rare. Heat treatment is standard practice, as nearly all rubies available today undergo some form of heat treatment. Ruby is also the birthstone of July, making it a perennially popular choice for fine jewelry.
Clean with warm, soapy water. Use of an ultrasonic or steam cleaner is generally safe.
Features
- Genuine faceted round ruby, available in four quality grades
- Color ranges from orangy red to purplish red depending on grade
- Heat treated — standard practice for nearly all rubies in today's market
- Birthstone of July
-
Grade C: Included stones with variation in pinkish-red color
-
Grade A: Medium pinkish red; moderate eye-visible inclusions with moderate effect on the stone
-
Grade AA: Medium to medium-dark pinkish red; minor eye-visible inclusions with moderate effect on the stone
-
Grade AAA: Medium to dark red; eye-clean with minor to no effect on the stone
Specifications
| Stone Type |
Genuine Ruby |
| Variety |
Corundum |
| Shape |
Round Faceted |
| Treatment |
Heat treated |
| Available Grades |
C, A, AA, AAA |
| Available Sizes |
2.0 mm – 5.0 mm |
| Birthstone Month |
July |
| Cleaning |
Warm soapy water; ultrasonic and steam generally safe |
Available Options
| Part # |
Size |
Grade |
| 920-720 |
2.0 mm |
Grade C |
| 920-720-A |
2.0 mm |
Grade A |
| 920-720-AA |
2.0 mm |
Grade AA |
| 920-720-AAA |
2.0 mm |
Grade AAA |
| 920-725 |
2.5 mm |
Grade C |
| 920-725-A |
2.5 mm |
Grade A |
| 920-725-AA |
2.5 mm |
Grade AA |
| 920-725-AAA |
2.5 mm |
Grade AAA |
| 920-730 |
3.0 mm |
Grade C |
| 920-730-A |
3.0 mm |
Grade A |
| 920-730-AA |
3.0 mm |
Grade AA |
| 920-730-AAA |
3.0 mm |
Grade AAA |
| 920-735 |
3.5 mm |
Grade C |
| 920-735-A |
3.5 mm |
Grade A |
| 920-735-AA |
3.5 mm |
Grade AA |
| 920-735-AAA |
3.5 mm |
Grade AAA |
| 920-740 |
4.0 mm |
Grade C |
| 920-740-A |
4.0 mm |
Grade A |
| 920-740-AA |
4.0 mm |
Grade AA |
| 920-740-AAA |
4.0 mm |
Grade AAA |
| 920-745 |
4.5 mm |
Grade C |
| 920-745-A |
4.5 mm |
Grade A |
| 920-745-AA |
4.5 mm |
Grade AA |
| 920-745-AAA |
4.5 mm |
Grade AAA |
| 920-750 |
5.0 mm |
Grade C |
| 920-750-A |
5.0 mm |
Grade A |
| 920-750-AA |
5.0 mm |
Grade AA |
| 920-750-AAA |
5.0 mm |
Grade AAA |