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Cushion|Natural|GIA

1.21ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 7553811117

Certificate GIA 7553811117

Diamond specifications and retailer prices

From $3,831 NZD
As of November 6, 2026
Save $5,046 NZD (57%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $8,877 NZD at MOH London · As of November 7, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7553811117. Listed at 17 retailers as of November 6, 2026, with prices from $3,831 to $8,877, a $5,046 spread on the same certified stone. MOH London lists it at $8,877. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7553811117
Dimensions7.05 × 5.38 × 3.74 mm
L/W Ratio1.31
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Knot, Feather, Needle
Top View
7.05 mm5.38 mm1.21 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7553811117
Side View
Table 64.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 69.4%

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: $8,877 NZD|Low: $3,831 NZD|High: $9,019 NZD|Avg: $5,619 NZD|-1.6%
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
November 7, 2026
Retailer 13$3,831 NZD
Retailer 6$3,992 NZD
Retailer 11$4,539 NZD
Retailer 4$4,701 NZD
Retailer 7$4,943 NZD
Retailer 5$5,119 NZD
Retailer 9$5,331 NZD
Retailer 3$5,350 NZD
Retailer 2$5,392 NZD
Retailer 12$5,538 NZD
Retailer 8$5,929 NZD
Retailer 10$6,218 NZD
MOH London$8,877 NZD

25 data points across 13 retailers

17 retailers$3,831 NZD to $8,877 NZD

A
Cheapest Retailer
-
$3,831 NZD
A
Retailer 2
-
$3,992 NZD
View
B+
Retailer 3
-
$4,539 NZD
View
B+
Retailer 4
-
$4,701 NZD
View
Final sale: no returns
B+
Retailer 5
-
$4,818 NZD
View
B+
Retailer 6
-
$4,825 NZD
View
B+
Retailer 7
-
$4,943 NZD
View
Retailer 8
-
$5,119 NZD
View
Price last confirmed 9 days ago
B+
Retailer 9
-
$5,132 NZD
View
B+
Retailer 10
-
$5,331 NZD
View
B+
Retailer 11
-
$5,350 NZD
View
B+
Retailer 12
-
$5,392 NZD
View
B
Retailer 13
-
$5,538 NZD
View
Retailer 14
-
$5,794 NZD
View
Price last confirmed 31 days ago
B+
Retailer 15
-
$5,929 NZD
View
B
Retailer 16
-
$6,218 NZD
View
Most Expensive
B
MOH London
A1072B078 · Nov 7
$8,877 NZD
£3,875 GBP
View
16 more retailers have this diamond
Prices start from $3,831 NZDSave up to $5,046 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
$3,831 NZD