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Cushion|Natural|GIA

1.51ct K SI1 Cushion Natural Diamond

GD • K/SI1 • GIA 6247005011

Certificate GIA 6247005011

Diamond specifications and retailer prices

From $2,981 AUD
As of November 6, 2026
Save $4,067 AUD (58%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $7,048 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 1.51ct natural cushion diamond

This 1.51ct 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 6247005011. Listed at 16 retailers as of November 4, 2026, with prices from $2,981 to $7,048, a $4,067 spread on the same certified stone. MOH London lists it at $7,048. 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

1.51
Carat
K
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6247005011
Dimensions7.47 × 5.74 × 4.16 mm
L/W Ratio1.30
Girdle conditionFaceted
Top View
7.47 mm5.74 mm1.51 ctK / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6247005011
Side View
Table 67.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 72.4%

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 6
Current: $7,048 AUD|Low: $2,924 AUD|High: $7,214 AUD|Avg: $4,502 AUD|-2.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 7, 2026
Retailer 3$2,981 AUD
Retailer 13$3,723 AUD
Retailer 14$3,764 AUD
Retailer 8$3,769 AUD
Retailer 2$3,893 AUD
Retailer 9$3,912 AUD
Retailer 4$4,103 AUD
Retailer 11$4,144 AUD
Retailer 7$4,183 AUD
Retailer 6$4,427 AUD
Retailer 5$4,672 AUD
Retailer 10$4,695 AUD
Retailer 12$4,922 AUD
Retailer 15$6,316 AUD
MOH London$7,048 AUD

25 data points across 15 retailers

16 retailers$2,981 AUD to $7,048 AUD

A
Cheapest Retailer
-
$2,981 AUD
B+
Retailer 2
-
$3,723 AUD
View
Final sale: no returns
B+
Retailer 3
-
$3,764 AUD
View
B+
Retailer 4
-
$3,769 AUD
View
B+
Retailer 5
-
$3,893 AUD
View
B+
Retailer 6
-
$3,912 AUD
View
B+
Retailer 7
-
$4,103 AUD
View
B+
Retailer 8
-
$4,144 AUD
View
B+
Retailer 9
-
$4,183 AUD
View
B+
Retailer 10
-
$4,359 AUD
View
Retailer 11
-
$4,427 AUD
View
Price last confirmed 18 days ago
B+
Retailer 12
-
$4,672 AUD
View
B+
Retailer 13
-
$4,695 AUD
View
B+
Retailer 14
-
$4,922 AUD
View
B
Retailer 15
-
$6,316 AUD
View
Most Expensive
B
MOH London
F25328684 · Nov 4
$7,048 AUD
£3,813 GBP
View
15 more retailers have this diamond
Prices start from $2,981 AUDSave up to $4,067 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
1.51ct Cushion
$2,981 AUD