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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 $2,722 SGD
As of November 6, 2026
Save $3,585 SGD (57%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $6,307 SGD 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 $2,722 to $6,307, a $3,585 spread on the same certified stone. MOH London lists it at $6,307. 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: $6,307 SGD|Low: $2,722 SGD|High: $6,408 SGD|Avg: $3,992 SGD|-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$2,722 SGD
Retailer 6$2,836 SGD
Retailer 11$3,225 SGD
Retailer 4$3,340 SGD
Retailer 7$3,512 SGD
Retailer 5$3,637 SGD
Retailer 9$3,787 SGD
Retailer 3$3,801 SGD
Retailer 2$3,831 SGD
Retailer 12$3,935 SGD
Retailer 8$4,213 SGD
Retailer 10$4,418 SGD
MOH London$6,307 SGD

25 data points across 13 retailers

17 retailers$2,722 SGD to $6,307 SGD

A
Cheapest Retailer
-
$2,722 SGD
A
Retailer 2
-
$2,836 SGD
View
B+
Retailer 3
-
$3,225 SGD
View
B+
Retailer 4
-
$3,340 SGD
View
Final sale: no returns
B+
Retailer 5
-
$3,423 SGD
View
B+
Retailer 6
-
$3,428 SGD
View
B+
Retailer 7
-
$3,512 SGD
View
Retailer 8
-
$3,637 SGD
View
Price last confirmed 9 days ago
B+
Retailer 9
-
$3,646 SGD
View
B+
Retailer 10
-
$3,787 SGD
View
B+
Retailer 11
-
$3,801 SGD
View
B+
Retailer 12
-
$3,831 SGD
View
B
Retailer 13
-
$3,935 SGD
View
Retailer 14
-
$4,116 SGD
View
Price last confirmed 31 days ago
B+
Retailer 15
-
$4,213 SGD
View
B
Retailer 16
-
$4,418 SGD
View
Most Expensive
B
MOH London
A1072B078 · Nov 7
$6,307 SGD
£3,875 GBP
View
16 more retailers have this diamond
Prices start from $2,722 SGDSave up to $3,585 SGD

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
$2,722 SGD