CaratHunter
Plans
Cushion|Natural|GIA

1.21ct F SI1 Cushion Natural Diamond

EX • F/SI1 • GIA 6411171191

Certificate GIA 6411171191

Diamond specifications and retailer prices

From $2,326 SGD
As of November 6, 2026
Save $3,113 SGD (57%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $5,440 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 F 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 6411171191. Listed at 14 retailers as of November 6, 2026, with prices from $2,326 to $5,440, a $3,113 spread on the same certified stone. MOH London lists it at $5,440. 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
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6411171191
Dimensions6.18 × 5.94 × 4.10 mm
L/W Ratio1.04
Top View
6.18 mm5.94 mm1.21 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6411171191
Side View
Table 65.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 68.9%

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: $5,440 SGD|Low: $2,326 SGD|High: $5,527 SGD|Avg: $3,591 SGD|-1.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 4$2,326 SGD
Retailer 9$2,329 SGD
Retailer 2$3,048 SGD
Retailer 3$3,303 SGD
Retailer 8$3,544 SGD
Retailer 10$3,585 SGD
Retailer 6$3,809 SGD
Retailer 5$3,877 SGD
Retailer 7$4,547 SGD
MOH London$5,440 SGD

25 data points across 10 retailers

14 retailers$2,326 SGD to $5,440 SGD

A
Cheapest Retailer
-
$2,326 SGD
A
Retailer 2
-
$2,329 SGD
View
A
Retailer 3
-
$3,048 SGD
View
A
Retailer 4
-
$3,163 SGD
View
Retailer 5
-
$3,227 SGD
View
Price last confirmed 11 days ago
B+
Retailer 6
-
$3,300 SGD
View
A
Retailer 7
-
$3,303 SGD
View
B+
Retailer 8
-
$3,483 SGD
View
B+
Retailer 9
-
$3,544 SGD
View
B+
Retailer 10
-
$3,809 SGD
View
Retailer 11
-
$3,842 SGD
View
Price last confirmed 31 days ago
B+
Retailer 12
-
$3,877 SGD
View
B+
Retailer 13
-
$4,547 SGD
View
Most Expensive
B
MOH London
63BA0D0F2 · Nov 7
$5,440 SGD
£3,342 GBP
View
13 more retailers have this diamond
Prices start from $2,326 SGDSave up to $3,113 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
$2,326 SGD