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Cushion|Natural|GIA

1.81ct K SI1 Cushion Natural Diamond

VG • K/SI1 • GIA 7451255837

Certificate GIA 7451255837

Diamond specifications and retailer prices

From $3,845 AUD
As of November 4, 2026
Save $4,511 AUD (54%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $8,356 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 1.81ct natural cushion diamond

This 1.81ct natural cushion sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 7451255837. Listed at 14 retailers as of November 4, 2026, with prices from $3,845 to $8,356, a $4,511 spread on the same certified stone. MOH London lists it at $8,356. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.81
Carat
K
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7451255837
Dimensions6.80 × 6.65 × 4.52 mm
L/W Ratio1.02
Top View
6.80 mm6.65 mm1.81 ctK / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7451255837
Side View
Table 65.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $8,356 AUD|Low: $3,845 AUD|High: $8,469 AUD|Avg: $5,351 AUD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7$3,845 AUD
Retailer 6$4,410 AUD
Retailer 8$4,539 AUD
Retailer 2$4,814 AUD
Retailer 9$4,849 AUD
Retailer 5$5,187 AUD
Retailer 3$5,778 AUD
Retailer 4$6,116 AUD
MOH London$8,356 AUD

38 data points across 9 retailers

14 retailers$3,845 AUD to $8,356 AUD

A
Cheapest Retailer
-
$3,845 AUD
A
Retailer 2
-
$4,065 AUD
View
B+
Retailer 3
-
$4,410 AUD
View
Retailer 4
-
$4,539 AUD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$4,545 AUD
View
B+
Retailer 6
-
$4,570 AUD
View
A
Retailer 7
-
$4,814 AUD
View
B+
Retailer 8
-
$4,849 AUD
View
B+
Retailer 9
-
$4,886 AUD
View
B+
Retailer 10
-
$5,187 AUD
View
Retailer 11
-
$5,678 AUD
View
Price last confirmed 14 days ago
B+
Retailer 12
-
$5,778 AUD
View
B+
Retailer 13
-
$6,116 AUD
View
Most Expensive
B
MOH London
9C11DC99E · Nov 4
$8,356 AUD
£4,521 GBP
View
13 more retailers have this diamond
Prices start from $3,845 AUDSave up to $4,511 AUD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.81ct Cushion
$3,845 AUD