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Cushion|Natural|GIA

1.01ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 1558450738

Certificate GIA 1558450738

Diamond specifications and retailer prices

From $1,280 SGD
As of November 5, 2026
Save $1,321 SGD (51%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,601 SGD at MOH London · As of November 4, 2026
View at MOH London

About this 1.01ct natural cushion diamond

This 1.01ct 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 1558450738. Listed at 11 retailers as of November 4, 2026, with prices from $1,280 to $2,601, a $1,321 spread on the same certified stone. MOH London lists it at $2,601. 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

1.01
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1558450738
Dimensions6.72 × 5.57 × 3.84 mm
L/W Ratio1.21
Girdle conditionFaceted
Key to symbols
Feather, Natural
Top View
6.72 mm5.57 mm1.01 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1558450738
Side View
Table 52.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 69.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $2,601 SGD|Low: $1,365 SGD|High: $2,637 SGD|Avg: $1,759 SGD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 2$1,379 SGD
Retailer 6$1,423 SGD
Retailer 7$1,596 SGD
Retailer 4$1,605 SGD
Retailer 5$1,735 SGD
Retailer 3$1,980 SGD
MOH London$2,601 SGD

37 data points across 7 retailers

11 retailers$1,280 SGD to $2,601 SGD

A
Cheapest Retailer
-
$1,280 SGD
A
Retailer 2
-
$1,362 SGD
View
A
Retailer 3
-
$1,379 SGD
View
Retailer 4
-
$1,423 SGD
View
Price last confirmed 13 days ago
Retailer 5
-
$1,566 SGD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$1,593 SGD
View
B+
Retailer 7
-
$1,596 SGD
View
A
Retailer 8
-
$1,605 SGD
View
A
Retailer 9
-
$1,735 SGD
View
B+
Retailer 10
-
$1,980 SGD
View
Most Expensive
B+
MOH London
179E14EB5 · Nov 4
$2,601 SGD
£1,598 GBP
View
10 more retailers have this diamond
Prices start from $1,280 SGDSave up to $1,321 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
1.01ct Cushion
$1,280 SGD