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Cushion|Natural|GIA

1.03ct E SI1 Cushion Natural Diamond

EX • E/SI1 • GIA 1558304813

Certificate GIA 1558304813

Diamond specifications and retailer prices

From $2,253 AUD
As of November 6, 2026
Save $2,935 AUD (57%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $5,188 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 1.03ct natural cushion diamond

This 1.03ct natural cushion sits in the classic one-carat band, graded E 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 1558304813. Listed at 19 retailers as of November 4, 2026, with prices from $2,253 to $5,188, a $2,935 spread on the same certified stone. MOH London lists it at $5,188. 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

1.03
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1558304813
Dimensions5.80 × 5.80 × 3.87 mm
L/W Ratio1.00
Girdle conditionFaceted
Top View
5.80 mm5.80 mm1.03 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1558304813
Side View
Table 66.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 66.8%

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: $5,188 AUD|Low: $2,217 AUD|High: $5,447 AUD|Avg: $3,107 AUD|-4.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 6, 2026
Retailer 18$2,253 AUD
Retailer 7$2,305 AUD
Retailer 4$2,481 AUD
Retailer 15$2,534 AUD
Retailer 2$2,653 AUD
Retailer 9$2,691 AUD
Retailer 10$2,757 AUD
Retailer 6$2,765 AUD
Retailer 17$2,780 AUD
Retailer 8$2,873 AUD
Retailer 11$2,880 AUD
Retailer 3$2,902 AUD
Retailer 14$3,225 AUD
Retailer 5$3,254 AUD
Retailer 13$3,624 AUD
Retailer 12$4,031 AUD
Retailer 16$4,679 AUD
MOH London$5,188 AUD

21 data points across 18 retailers

19 retailers$2,253 AUD to $5,188 AUD

A
Cheapest Retailer
-
$2,253 AUD
A
Retailer 2
-
$2,305 AUD
View
A
Retailer 3
-
$2,481 AUD
View
Final sale: no returns
A
Retailer 4
-
$2,534 AUD
View
A
Retailer 5
-
$2,653 AUD
View
A
Retailer 6
-
$2,691 AUD
View
A
Retailer 7
-
$2,757 AUD
View
A
Retailer 8
-
$2,765 AUD
View
A
Retailer 9
-
$2,780 AUD
View
A
Retailer 10
-
$2,873 AUD
View
A
Retailer 11
-
$2,880 AUD
View
A
Retailer 12
-
$2,902 AUD
View
A
Retailer 13
-
$3,225 AUD
View
A
Retailer 14
-
$3,254 AUD
View
B+
Retailer 15
-
$3,624 AUD
View
Retailer 16
-
$3,863 AUD
View
Price last confirmed 31 days ago
B+
Retailer 17
-
$4,031 AUD
View
B+
Retailer 18
-
$4,679 AUD
View
Most Expensive
B+
MOH London
2853DEC1A · Nov 4
$5,188 AUD
£2,807 GBP
View
18 more retailers have this diamond
Prices start from $2,253 AUDSave up to $2,935 AUD

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
1.03ct Cushion
$2,253 AUD