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Cushion|Natural|GIA

1.21ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 6555416527

Certificate GIA 6555416527

Diamond specifications and retailer prices

From $2,329 SGD
As of November 6, 2026
Save $3,060 SGD (57%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $5,389 SGD 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 H 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 6555416527. Listed at 18 retailers as of November 4, 2026, with prices from $2,329 to $5,389, a $3,060 spread on the same certified stone. MOH London lists it at $5,389. 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555416527
Dimensions6.21 × 6.14 × 4.03 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
6.21 mm6.14 mm1.21 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555416527
Side View
Table 65.0%CrownGirdle: MED-THKPavilionCulet: 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: $5,389 SGD|Low: $2,297 SGD|High: $5,498 SGD|Avg: $3,184 SGD|-2.0%
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 6$2,329 SGD
Retailer 9$2,356 SGD
Retailer 15$2,556 SGD
Retailer 8$2,577 SGD
Retailer 10$2,725 SGD
Retailer 14$2,749 SGD
Retailer 3$2,813 SGD
Retailer 4$2,884 SGD
Retailer 13$2,921 SGD
Retailer 7$2,928 SGD
Retailer 2$2,976 SGD
Retailer 5$3,168 SGD
Retailer 12$3,764 SGD
Retailer 11$3,828 SGD
Retailer 16$4,759 SGD
MOH London$5,389 SGD

24 data points across 16 retailers

18 retailers$2,329 SGD to $5,389 SGD

A
Cheapest Retailer
-
$2,329 SGD
A
Retailer 2
-
$2,356 SGD
View
A
Retailer 3
-
$2,556 SGD
View
A
Retailer 4
-
$2,577 SGD
View
Final sale: no returns
A
Retailer 5
-
$2,725 SGD
View
A
Retailer 6
-
$2,749 SGD
View
A
Retailer 7
-
$2,813 SGD
View
A
Retailer 8
-
$2,884 SGD
View
A
Retailer 9
-
$2,921 SGD
View
A
Retailer 10
-
$2,928 SGD
View
A
Retailer 11
-
$2,976 SGD
View
B+
Retailer 12
-
$3,168 SGD
View
B+
Retailer 13
-
$3,255 SGD
View
B+
Retailer 14
-
$3,764 SGD
View
B+
Retailer 15
-
$3,828 SGD
View
Retailer 16
-
$3,849 SGD
View
Price last confirmed 31 days ago
B
Retailer 17
-
$4,759 SGD
View
Most Expensive
B
MOH London
948ED028E · Nov 4
$5,389 SGD
£3,311 GBP
View
17 more retailers have this diamond
Prices start from $2,329 SGDSave up to $3,060 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
$2,329 SGD