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Cushion|Natural|GIA

1.51ct M SI1 Cushion Natural Diamond

M/SI1 • GIA 7556422306

Certificate GIA 7556422306

Diamond specifications and retailer prices

From $3,887 AUD
As of November 6, 2026
Save $2,110 AUD (35%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $5,997 AUD at Cape Diamonds · As of November 5, 2026
View at Cape Diamonds

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included) and certified by GIA 7556422306. Listed at 7 retailers as of November 5, 2026, with prices from $3,887 to $5,997, a $2,110 spread on the same certified stone. Cape Diamonds lists it at $5,997. 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
M
Colour
SI1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7556422306
Dimensions7.92 × 5.63 × 3.62 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Pinpoint
Top View
7.92 mm5.63 mm1.51 ctM / SI1
OriginNatural
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7556422306
Side View
Table 63.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 64.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $5,997 AUD|Low: $3,887 AUD|High: $6,501 AUD|Avg: $5,139 AUD|-7.7%
Cape Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 2$3,887 AUD
Retailer 5$4,745 AUD
Retailer 3$4,896 AUD
Retailer 7$4,956 AUD
Retailer 6$5,123 AUD
Retailer 4$5,720 AUD
Cape Diamonds$5,997 AUD

41 data points across 7 retailers

7 retailers$3,887 AUD to $5,997 AUD

B+
Cheapest Retailer
-
$3,887 AUD
B
Retailer 2
-
$4,745 AUD
View
B
Retailer 3
-
$4,896 AUD
View
Retailer 4
-
$4,956 AUD
View
Price last confirmed 9 days ago
B
Retailer 5
-
$5,123 AUD
View
B
Retailer 6
-
$5,720 AUD
View
Most Expensive
C
Cape Diamonds
cert_7556422306 · Nov 5
$5,997 AUD
ZAR 66,571 ZAR
View
6 more retailers have this diamond
Prices start from $3,887 AUDSave up to $2,110 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.

B+
1.51ct Cushion
$3,887 AUD