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Cushion|Natural|GIA

1.03ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 2557814024

Certificate GIA 2557814024

Diamond specifications and retailer prices

From €792 EUR
As of November 6, 2026
Save €3,405 EUR (81%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €5,751 EUR 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: €5,751 EUR|Low: €792 EUR|High: €5,751 EUR|Avg: €1,822 EUR
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 2€792 EUR
Retailer 3€1,358 EUR
Retailer 7€2,963 EUR
Retailer 9€3,164 EUR
Retailer 8€3,287 EUR
Retailer 5€3,354 EUR
Retailer 6€4,025 EUR
Retailer 4€4,197 EUR
MOH London€5,751 EUR

41 data points across 9 retailers

9 retailers€792 EUR to €4,197 EUR

A
Cheapest Retailer
-
€792 EUR
B+
Retailer 2
-
€1,358 EUR
View
B
Retailer 3
-
€2,963 EUR
View
B
Retailer 4
-
€3,164 EUR
View
B
Retailer 5
-
€3,287 EUR
View
B
Retailer 6
-
€3,354 EUR
View
B
Retailer 7
-
€4,025 EUR
View
C
Retailer 8
-
€4,197 EUR
View
Most Expensive
MOH London
5F355E754 · Nov 1
€5,751 EUR
£5,056 GBP
View
Price under review
8 more retailers have this diamond
Prices start from €792 EURSave up to €3,405 EUR

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
€792 EUR