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Cushion|Natural|GIA

1.30ct K SI2 Cushion Natural Diamond

EX • K/SI2 • GIA 5231921674

Certificate GIA 5231921674

Diamond specifications and retailer prices

From $2,304 SGD
As of November 6, 2026
Save $1,633 SGD (41%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $3,937 SGD at MOH London · As of November 4, 2026
View at MOH London

About this 1.3ct natural cushion diamond

This 1.3ct natural cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5231921674. Listed at 5 retailers as of November 4, 2026, with prices from $2,304 to $3,937, a $1,633 spread on the same certified stone. MOH London lists it at $3,937. 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

1.30
Carat
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5231921674
Dimensions6.93 × 5.57 × 3.79 mm
L/W Ratio1.24
Top View
6.93 mm5.57 mm1.30 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5231921674
Side View
Table 61.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 68.0%

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 6
Current: $3,937 SGD|Low: $2,253 SGD|High: $3,994 SGD|Avg: $2,876 SGD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 5$2,253 SGD
Retailer 2$2,304 SGD
Retailer 4$2,500 SGD
Retailer 3$3,059 SGD
MOH London$3,937 SGD

41 data points across 5 retailers

5 retailers$2,304 SGD to $3,937 SGD

Retailer 1
-
$2,253 SGD
Price last confirmed 12 days ago
A
Retailer 2
-
$2,304 SGD
View
A
Retailer 3
-
$2,500 SGD
View
B+
Retailer 4
-
$3,059 SGD
View
Most Expensive
B
MOH London
57D7BD527 · Nov 4
$3,937 SGD
£2,419 GBP
View
4 more retailers have this diamond
Prices start from $2,304 SGDSave up to $1,633 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
1.30ct Cushion
$2,304 SGD