The different colours show where light can make the diamond sparkle when worn in a ring.
Too much Blue is bad because it means the light will be blocked by the person’s head and body.
Red is best because it is usually brighter lights up high.
Green is light that likely comes from the walls and maybe a window.
Ideal-Scope is easier to use, but ASET is great and best for fancy shaped diamonds.
- AGS quantify’s blue, red, green and leakage with its Performance Grading Software™ in 1° steps of tilt from 0° to 45°
- Face-up (0°) is weighted much more than 45°
- We recommend tilting the stone to about 15° while looking at it through your ASET scope
- ‘Face Up’ counts the most
- Downgrade leakage – for a lot, or large zones
- Downgrade for mostly green & little red
- Downgrade for too much or too little blue
Our Recommendations in using ASET Scope
- We prefer to back light diamonds
- Comparing brightness of colors is easier
- Seeing leakage makes it easier to discern good from poor stones
The best way to use ASET is rock stones from side to side as shown on the moviesWe recommend you ‘weight’ 50% from the face up view and 50% from rocking views
While not ‘scientific’, with some practice you can identify stones that look bad when tilted
Bảng so sánh giữa các loại kính.
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