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Cushion|Natural|GIA

1.21ct E SI1 Cushion Natural Diamond

EX • E/SI1 • GIA 5231993495

Certificate GIA 5231993495

Diamond specifications and retailer prices

From $4,041 NZD
As of November 6, 2026
Save $4,818 NZD (54%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $8,859 NZD at MOH London · As of November 4, 2026
View at MOH London

About this 1.21ct natural cushion diamond

This 1.21ct natural cushion sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5231993495. Listed at 15 retailers as of November 4, 2026, with prices from $4,041 to $8,859, a $4,818 spread on the same certified stone. MOH London lists it at $8,859. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.21
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.4°
Pavilion angle36.5°
OriginNatural
Grading LabGIA
CertificateGIA 5231993495
Dimensions6.42 × 6.10 × 4.01 mm
L/W Ratio1.05
Culet sizeNone
Top View
6.42 mm6.10 mm1.21 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5231993495
Side View
Table 59.0%Crown 38.4°Girdle: MED-ETKPavilion 36.5°Culet: NoneDepth 65.6%

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: $8,859 NZD|Low: $3,987 NZD|High: $9,363 NZD|Avg: $5,583 NZD|-5.4%
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
November 6, 2026
Retailer 10$4,041 NZD
Retailer 8$4,064 NZD
Retailer 9$4,313 NZD
Retailer 3$4,441 NZD
Retailer 14$4,531 NZD
Retailer 5$4,952 NZD
Retailer 4$5,213 NZD
Retailer 12$5,213 NZD
Retailer 13$5,394 NZD
Retailer 7$5,623 NZD
Retailer 2$5,823 NZD
Retailer 6$5,910 NZD
Retailer 11$6,508 NZD
MOH London$8,859 NZD

41 data points across 14 retailers

15 retailers$4,041 NZD to $8,859 NZD

A
Cheapest Retailer
-
$4,041 NZD
A
Retailer 2
-
$4,064 NZD
View
A
Retailer 3
-
$4,313 NZD
View
A
Retailer 4
-
$4,441 NZD
View
Final sale: no returns
A
Retailer 5
-
$4,531 NZD
View
B+
Retailer 6
-
$4,952 NZD
View
B+
Retailer 7
-
$5,213 NZD
View
B+
Retailer 8
-
$5,213 NZD
View
B+
Retailer 9
-
$5,394 NZD
View
B+
Retailer 10
-
$5,623 NZD
View
B+
Retailer 11
-
$5,823 NZD
View
Retailer 12
-
$5,910 NZD
View
Price last confirmed 30 days ago
Retailer 13
-
$6,420 NZD
View
Price last confirmed 14 days ago
B+
Retailer 14
-
$6,508 NZD
View
Most Expensive
B
MOH London
B80125C31 · Nov 4
$8,859 NZD
£3,867 GBP
View
14 more retailers have this diamond
Prices start from $4,041 NZDSave up to $4,818 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
1.21ct Cushion
$4,041 NZD