CaratHunter
Plans
Cushion|Natural|GIA

1.51ct K SI1 Cushion Natural Diamond

VG • K/SI1 • GIA 5556305352

Certificate GIA 5556305352

Diamond specifications and retailer prices

From $4,248 NZD
As of November 6, 2026
Save $4,900 NZD (54%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $9,148 NZD 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 5556305352. Listed at 17 retailers as of November 4, 2026, with prices from $4,248 to $9,148, a $4,900 spread on the same certified stone. MOH London lists it at $9,148. 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
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5556305352
Dimensions7.51 × 5.76 × 4.19 mm
L/W Ratio1.30
Girdle conditionFaceted
Top View
7.51 mm5.76 mm1.51 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5556305352
Side View
Table 68.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 72.8%

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: $9,148 NZD|Low: $4,178 NZD|High: $9,558 NZD|Avg: $5,814 NZD|-4.3%
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
Retailer 16
November 7, 2026
Retailer 4$4,248 NZD
Retailer 6$4,255 NZD
Retailer 12$4,535 NZD
Retailer 13$4,587 NZD
Retailer 14$4,609 NZD
Retailer 16$4,880 NZD
Retailer 8$4,952 NZD
Retailer 5$5,213 NZD
Retailer 9$5,322 NZD
Retailer 3$5,340 NZD
Retailer 7$5,625 NZD
Retailer 2$5,821 NZD
Retailer 10$6,384 NZD
Retailer 11$6,694 NZD
Retailer 15$8,763 NZD
MOH London$9,148 NZD

25 data points across 16 retailers

17 retailers$4,248 NZD to $9,148 NZD

A
Cheapest Retailer
-
$4,248 NZD
A
Retailer 2
-
$4,255 NZD
View
A
Retailer 3
-
$4,535 NZD
View
A
Retailer 4
-
$4,587 NZD
View
Final sale: no returns
A
Retailer 5
-
$4,609 NZD
View
A
Retailer 6
-
$4,880 NZD
View
B+
Retailer 7
-
$4,952 NZD
View
A
Retailer 8
-
$5,213 NZD
View
A
Retailer 9
-
$5,322 NZD
View
A
Retailer 10
-
$5,340 NZD
View
Retailer 11
-
$5,625 NZD
View
Price last confirmed 18 days ago
B+
Retailer 12
-
$5,821 NZD
View
B+
Retailer 13
-
$5,929 NZD
View
B+
Retailer 14
-
$6,384 NZD
View
B+
Retailer 15
-
$6,694 NZD
View
B
Retailer 16
-
$8,763 NZD
View
Most Expensive
B
MOH London
83913B52F · Nov 4
$9,148 NZD
£3,993 GBP
View
16 more retailers have this diamond
Prices start from $4,248 NZDSave up to $4,900 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.

A
1.51ct Cushion
$4,248 NZD