Quality Classifications

Open, RapSpec-inspired tiers. Versioned and auditable.

Q1

Q1 (Strict)

Investment grade precision.

Top Tier
Table %57 - 59%
Depth %60 - 62.5%
CutExcellent or better
PolishExcellent or better
SymmetryExcellent or better
FluorescenceNone
Eye CleanRequired
Q2

Q2 (Fine)

Balanced beauty and value.

Table %56 - 60%
Depth %59 - 62.8%
CutVery Good or better
PolishVery Good or better
SymmetryVery Good or better
FluorescenceUp to Faint
Eye CleanRequired
Q3

Q3 (Commercial)

Broader make specifications.

Table %55 - 62%
Depth %58.5 - 63.2%
CutGood or better
PolishGood or better
SymmetryGood or better
FluorescenceUp to Medium
Eye CleanNot required
Q4

Q4 (Professional)

Some length description

Table %54 - 63%
Depth %58 - 64%
CutGood or better
PolishGood or better
SymmetryGood or better
FluorescenceUp to Strong
Eye CleanNot required