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Cushion|Natural|GIA

1.21ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 7191728315

Certificate GIA 7191728315

Diamond specifications and retailer prices

From $3,571 SGD
As of November 4, 2026
Save $4,205 SGD (54%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $7,775 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7191728315. Listed at 15 retailers as of November 2, 2026, with prices from $3,571 to $7,775, a $4,205 spread on the same certified stone. MOH London lists it at $7,775. 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
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7191728315
Dimensions6.72 × 5.63 × 3.86 mm
L/W Ratio1.19
Top View
6.72 mm5.63 mm1.21 ctK / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 7191728315
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.6%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $7,775 SGD|Low: $3,624 SGD|High: $7,870 SGD|Avg: $4,947 SGD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 8$3,624 SGD
Retailer 5$3,665 SGD
Retailer 7$4,213 SGD
Retailer 6$4,523 SGD
Retailer 2$4,811 SGD
Retailer 3$5,107 SGD
Retailer 4$5,675 SGD
MOH London$7,775 SGD

45 data points across 8 retailers

15 retailers$3,571 SGD to $7,775 SGD

B
Cheapest Retailer
-
$3,571 SGD
B
Retailer 2
-
$3,624 SGD
View
B
Retailer 3
-
$3,665 SGD
View
B
Retailer 4
-
$3,724 SGD
View
B
Retailer 5
-
$3,738 SGD
View
B
Retailer 6
-
$3,992 SGD
View
B
Retailer 7
-
$4,075 SGD
View
Retailer 8
-
$4,213 SGD
View
Price last confirmed 9 days ago
B
Retailer 9
-
$4,523 SGD
View
B
Retailer 10
-
$4,578 SGD
View
B
Retailer 11
-
$4,811 SGD
View
B
Retailer 12
-
$5,107 SGD
View
Retailer 13
-
$5,266 SGD
View
Price last confirmed 15 days ago
B
Retailer 14
-
$5,675 SGD
View
Most Expensive
B
MOH London
7F28ECEFC · Nov 2
$7,775 SGD
£4,777 GBP
View
14 more retailers have this diamond
Prices start from $3,571 SGDSave up to $4,205 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
$3,571 SGD