Front
Method
Border
Left / Right
42.2 / 57.8
Top / Bottom
50.5 / 49.5
Yaw
−0.02° CCW
Corner Readings · Millimeters
Top Left
X 2.20 · Y 2.50
Top Right
X 3.00 · Y 2.50
Bottom Left
X 2.10 · Y 2.40
Bottom Right
X 2.90 · Y 2.50
Official Grading Record
2019 · Unbroken Bonds
Condition Profile
RBH Grading Standard
Centering
9.0
Corners
1.0
Edges
8.0
Surface
1.0
Supporting Documentation
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Released Grading Record
Border mode calculates centering and yaw from the recorded corner-border measurements. Landmark mode calculates LR/TB from direct design-landmark distances and records yaw independently when a reliable horizontal or vertical reference is available.
Dimensional measurements are recorded manually in millimeters and are subject to an approximate ±0.1 mm measurement uncertainty. Clockwise yaw is positive (+); counterclockwise yaw is negative (−). “Not measured” means no reliable yaw reference was available.
Method
Border
Left / Right
42.2 / 57.8
Top / Bottom
50.5 / 49.5
Yaw
−0.02° CCW
Corner Readings · Millimeters
Top Left
X 2.20 · Y 2.50
Top Right
X 3.00 · Y 2.50
Bottom Left
X 2.10 · Y 2.40
Bottom Right
X 2.90 · Y 2.50
Method
Border
Left / Right
54.8 / 45.2
Top / Bottom
50.0 / 50.0
Yaw
+0.04° CW
Corner Readings · Millimeters
Top Left
X 3.50 · Y 3.50
Top Right
X 2.80 · Y 3.50
Bottom Left
X 3.40 · Y 3.50
Bottom Right
X 2.90 · Y 3.50
Where dimensional measurements are shown, values are recorded manually in millimeters and are subject to an approximate ±0.1 mm measurement uncertainty.
Where dimensional measurements are shown, values are recorded manually in millimeters and are subject to an approximate ±0.1 mm measurement uncertainty.
Documented corner, edge, and surface conditions associated with this grade.
Where dimensional measurements are shown, values are recorded manually in millimeters and are subject to an approximate ±0.1 mm measurement uncertainty.
15 Blemishes
Blemish 01 · Surface
Rear · D2
Larger Visible Stained AreaBlemish 02 · Surface
Rear · D3
Light Localized StainBlemish 03 · Surface
Rear · D4
Light Localized StainBlemish 04 · Edge
Front · Top
Isolated Touch / TickBlemish 05 · Edge
Front · Right
Isolated Touch / TickBlemish 06 · Edge
Front · Bottom
Isolated Touch / TickBlemish 07 · Edge
Rear · Top
Isolated Touch / TickBlemish 08 · Edge
Rear · Bottom
Isolated Touch / TickBlemish 09 · Edge
Rear · Left
Isolated Touch / TickBlemish 10 · Corner
Front · Top Left
Isolated Touch / TickBlemish 11 · Corner
Front · Bottom Right
Surface-Compromising HitBlemish 12 · Corner
Rear · Top Left
Clear Ding / DentBlemish 13 · Corner
Rear · Top Right
Localized Visible FrayBlemish 14 · Corner
Rear · Bottom Left
Localized Visible FrayBlemish 15 · Corner
Rear · Bottom Right
Localized Visible FrayCertified
October 2, 2026
Record Revision
1
This digital record is tied to the exact eight-digit certification number printed on the RBH label. RBH does not expose customer information, grader notes, or private scoring weights in the public registry.