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Cushion|Natural|GIA

1.31ct K SI1 Cushion Natural Diamond

VG • K/SI1 • GIA 1395417930

Certificate GIA 1395417930

Diamond specifications and retailer prices

From $4,710 NZD
As of November 4, 2026
Save $5,501 NZD (54%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $10,211 NZD at MOH London · As of November 7, 2026
View at MOH London

About this 1.31ct natural cushion diamond

This 1.31ct natural cushion sits in the one-and-a-quarter to one-and-a-half 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 1395417930. Listed at 15 retailers as of November 4, 2026, with prices from $4,710 to $10,211, a $5,501 spread on the same certified stone. MOH London lists it at $10,211. 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

1.31
Carat
K
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1395417930
Dimensions6.50 × 6.13 × 4.21 mm
L/W Ratio1.06
Culet sizeNone
Top View
6.50 mm6.13 mm1.31 ctK / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 1395417930
Side View
Table 67.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 68.6%

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 4
Current: $10,211 NZD|Low: $4,815 NZD|High: $10,389 NZD|Avg: $6,344 NZD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 10$4,815 NZD
Retailer 5$4,843 NZD
Retailer 6$4,979 NZD
Retailer 9$5,561 NZD
Retailer 7$5,965 NZD
Retailer 8$5,989 NZD
Retailer 2$6,350 NZD
Retailer 3$6,738 NZD
Retailer 4$7,492 NZD
MOH London$10,211 NZD

45 data points across 10 retailers

15 retailers$4,710 NZD to $10,211 NZD

B+
Cheapest Retailer
-
$4,710 NZD
B+
Retailer 2
-
$4,815 NZD
View
B+
Retailer 3
-
$4,843 NZD
View
B+
Retailer 4
-
$4,917 NZD
View
B+
Retailer 5
-
$4,979 NZD
View
B
Retailer 6
-
$5,412 NZD
View
Retailer 7
-
$5,561 NZD
View
Price last confirmed 9 days ago
B
Retailer 8
-
$5,965 NZD
View
B
Retailer 9
-
$5,989 NZD
View
B
Retailer 10
-
$6,039 NZD
View
B
Retailer 11
-
$6,350 NZD
View
B
Retailer 12
-
$6,738 NZD
View
Retailer 13
-
$6,956 NZD
View
Price last confirmed 15 days ago
B
Retailer 14
-
$7,492 NZD
View
Most Expensive
C
MOH London
ABE43FA0F · Nov 7
$10,211 NZD
£4,457 GBP
View
14 more retailers have this diamond
Prices start from $4,710 NZDSave up to $5,501 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+
1.31ct Cushion
$4,710 NZD