CaratHunter
Plans
Cushion|Natural|GIA

1.03ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 2557814024

Certificate GIA 2557814024

Diamond specifications and retailer prices

From $1,287 AUD
As of November 6, 2026
Save $5,533 AUD (81%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $9,345 AUD at MOH London · As of November 1, 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 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 2557814024. Listed at 9 retailers as of November 5, 2026, with a 430% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2557814024
Dimensions6.38 × 5.11 × 3.55 mm
L/W Ratio1.25
Culet sizeNone
Top View
6.38 mm5.11 mm1.03 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2557814024
Side View
Table 64.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 69.5%

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: $9,345 AUD|Low: $1,287 AUD|High: $9,345 AUD|Avg: $2,961 AUD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 2$1,287 AUD
Retailer 3$2,206 AUD
Retailer 7$4,814 AUD
Retailer 9$5,142 AUD
Retailer 8$5,341 AUD
Retailer 5$5,450 AUD
Retailer 6$6,541 AUD
Retailer 4$6,820 AUD
MOH London$9,345 AUD

41 data points across 9 retailers

9 retailers$1,287 AUD to $6,820 AUD

A
Cheapest Retailer
-
$1,287 AUD
B+
Retailer 2
-
$2,206 AUD
View
B
Retailer 3
-
$4,814 AUD
View
B
Retailer 4
-
$5,142 AUD
View
B
Retailer 5
-
$5,341 AUD
View
B
Retailer 6
-
$5,450 AUD
View
B
Retailer 7
-
$6,541 AUD
View
C
Retailer 8
-
$6,820 AUD
View
Most Expensive
MOH London
5F355E754 · Nov 1
$9,345 AUD
£5,056 GBP
View
Price under review
8 more retailers have this diamond
Prices start from $1,287 AUDSave up to $5,533 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
$1,287 AUD