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Cushion|Natural|GIA

1.21ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 6542540034

Certificate GIA 6542540034

Diamond specifications and retailer prices

From $3,681 SGD
As of November 6, 2026
Save $3,907 SGD (51%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $7,588 SGD at MOH London · As of November 2, 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 6542540034. Listed at 19 retailers as of November 2, 2026, with prices from $3,681 to $7,588, a $3,907 spread on the same certified stone. MOH London lists it at $7,588. 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
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6542540034
Dimensions7.29 × 5.37 × 3.69 mm
L/W Ratio1.36
Cert comments
Additional pinpoints are not shown.
Key to symbols
Crystal, Feather, Pinpoint
Top View
7.29 mm5.37 mm1.21 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6542540034
Side View
Table 63.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.7%

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 6
Current: $7,588 SGD|Low: $3,477 SGD|High: $7,679 SGD|Avg: $4,722 SGD|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 7, 2026
Retailer 12$3,681 SGD
Retailer 10$3,792 SGD
Retailer 11$3,847 SGD
Retailer 3$3,860 SGD
Retailer 9$4,110 SGD
Retailer 5$4,401 SGD
Retailer 8$4,661 SGD
Retailer 2$4,695 SGD
Retailer 4$4,859 SGD
Retailer 6$5,281 SGD
Retailer 7$5,537 SGD
MOH London$7,588 SGD

38 data points across 12 retailers

19 retailers$3,681 SGD to $7,588 SGD

Retailer 1
-
$3,599 SGD
Price last confirmed 31 days ago
B+
Retailer 2
-
$3,681 SGD
View
B+
Retailer 3
-
$3,792 SGD
View
Final sale: no returns
B+
Retailer 4
-
$3,847 SGD
View
B+
Retailer 5
-
$3,860 SGD
View
Retailer 6
-
$4,110 SGD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
$4,401 SGD
View
B
Retailer 8
-
$4,419 SGD
View
B
Retailer 9
-
$4,661 SGD
View
Retailer 10
-
$4,661 SGD
View
Price last confirmed 19 days ago
B
Retailer 11
-
$4,665 SGD
View
B
Retailer 12
-
$4,665 SGD
View
B
Retailer 13
-
$4,695 SGD
View
B
Retailer 14
-
$4,819 SGD
View
Retailer 15
-
$4,859 SGD
View
Price last confirmed 30 days ago
Retailer 16
-
$5,140 SGD
View
Price last confirmed 15 days ago
B
Retailer 17
-
$5,281 SGD
View
B
Retailer 18
-
$5,537 SGD
View
Most Expensive
B
MOH London
AB3735B3F · Nov 2
$7,588 SGD
£4,662 GBP
View
18 more retailers have this diamond
Prices start from $3,681 SGDSave up to $3,907 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.

B+
1.21ct Cushion
$3,681 SGD