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Cushion|Natural|GIA

1.03ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 1558000551

Certificate GIA 1558000551

Diamond specifications and retailer prices

From €1,135 EUR
As of November 6, 2026
Save €1,390 EUR (55%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €2,525 EUR 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1558000551. Listed at 18 retailers as of November 4, 2026, with prices from €1,135 to €2,525, a €1,390 spread on the same certified stone. MOH London lists it at €2,525. 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1558000551
Dimensions6.44 × 5.11 × 3.52 mm
L/W Ratio1.26
Girdle conditionFaceted
Top View
6.44 mm5.11 mm1.03 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1558000551
Side View
Table 68.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.9%

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: €2,525 EUR|Low: €1,123 EUR|High: €2,605 EUR|Avg: €1,568 EUR|-3.1%
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
November 6, 2026
Retailer 4€1,135 EUR
Retailer 14€1,197 EUR
Retailer 15€1,268 EUR
Retailer 6€1,272 EUR
Retailer 2€1,334 EUR
Retailer 8€1,343 EUR
Retailer 10€1,343 EUR
Retailer 3€1,370 EUR
Retailer 7€1,436 EUR
Retailer 5€1,497 EUR
Retailer 9€1,570 EUR
Retailer 12€1,589 EUR
Retailer 13€1,748 EUR
Retailer 11€1,945 EUR
Retailer 16€2,338 EUR
MOH London€2,525 EUR

23 data points across 16 retailers

18 retailers€1,135 EUR to €2,525 EUR

A
Cheapest Retailer
-
€1,135 EUR
A
Retailer 2
-
€1,197 EUR
View
Final sale: no returns
A
Retailer 3
-
€1,268 EUR
View
A
Retailer 4
-
€1,272 EUR
View
A
Retailer 5
-
€1,334 EUR
View
A
Retailer 6
-
€1,343 EUR
View
A
Retailer 7
-
€1,343 EUR
View
A
Retailer 8
-
€1,370 EUR
View
A
Retailer 9
-
€1,436 EUR
View
A
Retailer 10
-
€1,497 EUR
View
A
Retailer 11
-
€1,570 EUR
View
A
Retailer 12
-
€1,589 EUR
View
B+
Retailer 13
-
€1,721 EUR
View
A
Retailer 14
-
€1,748 EUR
View
B+
Retailer 15
-
€1,945 EUR
View
Retailer 16
-
€1,969 EUR
View
Price last confirmed 33 days ago
B+
Retailer 17
-
€2,338 EUR
View
Most Expensive
B+
MOH London
55261932A · Nov 4
€2,525 EUR
£2,220 GBP
View
17 more retailers have this diamond
Prices start from €1,135 EURSave up to €1,390 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
€1,135 EUR