Gemstone Enhancements
ROUND BRILLIANT CUT STONES
Gemstone Enhancements
Swipe -> to see more
| Gemstone | Code | Enhancement Method | Use | Stability | Care | Notes |
| Alexandrite | N | None | N/A | N/A | Normal | |
| Amethyst | H | Heated to Lighten Color | Occasional | Excellent | Special | Some unheated stones may fade in color |
| Aquamarine | H | Heated to remove yellow | Usually | Excellent | Normal | |
| Beryl-Red | H or O | Colorless Oil to fill fissures | Common | Very Good | Special | Avoid High Temperature |
| Beryl-Pink | H | Heated to remove yellow | Common | Excellent | Normal | |
| Chrysoberyl | N | None | N/A | Excellent | Normal | |
| Chrysoberyl-Cats Eye | R | Irradiated to Change Color | Occasional | Excellent | Normal | |
| Diamond-Colorless | LC | Laser drilled to improve appearance | Common/Occasional | Very Good | Normal | |
| Diamond-Colored | LC,F, or R | Laser drilled to improve appearance
Irradiated for fancy color |
Very Good
Occasional |
Very Good
Fair/Poor |
Normal
Special |
Steaming/Ultrasonic may affect color/appearance
|
| Emerald | H or O | Oil, Wax or Resin to improve appearance | Common | Fair/Very Good | Special | Avoid Chemicals/Ultrasonic |
| Garnet | N | None | N/A | N/A | Normal | |
| Kunzite | H | Heated to improve color | Common | Fair | Special | Avoid strong light/ultrasonic |
| Opal-White,Black | N | None | N/A | N/A | Special | Avoid Heat/Ultrasonic/Chemicals |
| Opal-White,Black | O | Impregnated with Oil | Rarely | Fair | Special | Avoid Heat/Ultrasonic/Chemicals |
| Opal-Boulder | N | None | N/A | N/A | Normal | |
| Opal-Boulder | O | Infusion of colorless substances | Occasional | Fair | Special | Avoid Heat/Ultrasonic/Chemicals |
| Opal-Fire | N | None | N/A | N/A | Special | Avoid Heat |
| Pearl-Natural | B | Bleached to improve color | Common | Very Good | Special | Avoid Chemicals |
| Pearl-Natural | D | Dyed to produce grey/black | Rarely | Good/Very Good | Special | Avoid Chemicals/Ultrasonic |
| Peridot | N | None | N/A | N/A | Normal | |
| Peridot | H or O | Improve appearance | Rarely | Good/Fair | Special | Avoid Heat/Ultrasonic/Chemicals |
| Ruby | N | None | N/A | N/A | Normal | |
| Ruby | H | Improve color/appearance | Usually | Excellent | Normal | |
| Ruby | D or F | Improve color/appearance | Common | Good/Poor | Special | Avoid Heat/Ultrasonic/Chemicals |
| Ruby | DI | Artificial color | Occasional | Good | Special | Avoid repolishing |
| Sapphire | N | None | N/A | N/A | Normal | |
| Sapphire | H | Improve color/appearance | Usually | Excellent | Normal | |
| Sapphire | DI | Artificial color | Common | Good | Special | Avoid repolishing |
| Sapphire | R | Intense yellow or orange color | Occasional | Very Poor | Special | Fades quickly in light/heat |
| Spinel | N | None | N/A | N/A | Normal | |
| Tanzanite | H | Heated to produce blue/violet color | Usually | Excellent | Special | Avoid temperature changes |
| Topaz-Blue | R/H | Heated/Irradiated for color | Usually | Excellent | Normal | |
| Topaz-Yellow/Orange | R | Intensify color | Occasional | Fair | Special | Avoid heat/strong light |
| Topaz-Pink | H | Heated for color | Usually | Excellent | Normal | |
| Topaz-Green | R | Irradiated to produce color | Usually | Good | Special | Avoid repolishing |
| Tourmaline | N | None | N/A | N/A | Normal | |
| Tourmaline | H | Heated for color | Common | Excellent | Normal | |
| Tourmaline | R | Irradiated to intensify color | Common | Good | Normal | |
| Zircon | N | None | N/A | N/A | Special | Avoid abrasives |
| Zircon | H | Heated for color | Rarely | Good | Special | Avoid abrasives/strong light |
B Bleaching-Artificial Color
D Dyeing-Artificial Color
F Filling-Durability/Appearance
H Heating-Color/Clarity
R Irradiation-Color Enhancement
O Oiling/Resin Infusion-Appearance
N None
D Dyeing-Artificial Color
F Filling-Durability/Appearance
H Heating-Color/Clarity
R Irradiation-Color Enhancement
O Oiling/Resin Infusion-Appearance
N None
DI Diffusion-Chemicals and High Temperature-Artificial Color
WO Waxing Oiling-Colorless Wax or Oil Introduced for Clarity
LC Laser/Chemicals-Laser Chemicals to alter inclusions
PI Plastic Introduction-Durability/Appearance
WO Waxing Oiling-Appearance
HP Heating/Pressure-Color/Clarity
WO Waxing Oiling-Colorless Wax or Oil Introduced for Clarity
LC Laser/Chemicals-Laser Chemicals to alter inclusions
PI Plastic Introduction-Durability/Appearance
WO Waxing Oiling-Appearance
HP Heating/Pressure-Color/Clarity
Download Gem Guides
Subscribe to our newsletter to instantly download all gem guides with exclusive savings for our email clients.
[et_bloom_inline optin_id="optin_2"]