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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 $4,818 NZD
As of November 6, 2026
Save $2,615 NZD (35%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $7,433 NZD 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 $4,818 to $7,433, a $2,615 spread on the same certified stone. Cape Diamonds lists it at $7,433. 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: $7,433 NZD|Low: $4,818 NZD|High: $8,057 NZD|Avg: $6,369 NZD|-7.7%
Cape Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 2$4,818 NZD
Retailer 5$5,881 NZD
Retailer 3$6,068 NZD
Retailer 7$6,142 NZD
Retailer 6$6,350 NZD
Retailer 4$7,089 NZD
Cape Diamonds$7,433 NZD

41 data points across 7 retailers

7 retailers$4,818 NZD to $7,433 NZD

B+
Cheapest Retailer
-
$4,818 NZD
B
Retailer 2
-
$5,881 NZD
View
B
Retailer 3
-
$6,068 NZD
View
Retailer 4
-
$6,142 NZD
View
Price last confirmed 9 days ago
B
Retailer 5
-
$6,350 NZD
View
B
Retailer 6
-
$7,089 NZD
View
Most Expensive
C
Cape Diamonds
cert_7556422306 · Nov 5
$7,433 NZD
ZAR 66,571 ZAR
View
6 more retailers have this diamond
Prices start from $4,818 NZDSave up to $2,615 NZD

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
$4,818 NZD