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Cushion|Natural|GIA

0.42ct F SI1 Cushion Natural Diamond

EX • F/SI1 • GIA 1528116085

Certificate GIA 1528116085

Diamond specifications and retailer prices

From $1,005 SGD
£619 GBP
As of November 3, 2026
Save $880 SGD (47%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,886 SGD at MOH London · As of November 2, 2026
View at MOH London

About this 0.42ct natural cushion diamond

This 0.42ct natural cushion sits in the sub-half-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 1528116085. Listed at 5 retailers as of November 2, 2026, with prices from $1,005 to $1,886, a $880 spread on the same certified stone. MOH London lists it at $1,886. 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

0.42
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1528116085
Dimensions4.35 × 4.30 × 2.98 mm
L/W Ratio1.01
Top View
4.35 mm4.30 mm0.42 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateGIA 1528116085
Side View
Table 63.0%CrownGirdlePavilionCulet: NoneDepth 69.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 3
Current: $1,886 SGD|Low: $943 SGD|High: $1,908 SGD|Avg: $1,267 SGD|-0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 3, 2026
Retailer 2$1,005 SGD
Retailer 4$1,023 SGD
Retailer 3$1,202 SGD
Retailer 5$1,228 SGD
MOH London$1,886 SGD

45 data points across 5 retailers

5 retailers$1,005 SGD to $1,886 SGD

B+
Cheapest Retailer
-
$1,005 SGD
£619 GBP
B+
Retailer 2
-
$1,023 SGD
£630 GBP
View
B
Retailer 3
-
$1,202 SGD
€895 EUR
View
Retailer 4
-
$1,228 SGD
A$1,477 AUD
View
Price last confirmed 30 days ago
Most Expensive
B
MOH London
04F43B370 · Nov 2
$1,886 SGD
£1,161 GBP
View
4 more retailers have this diamond
Prices start from $1,005 SGDSave up to $880 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+
0.42ct Cushion
$1,005 SGD