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Round|Natural|GIA

1.00ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 5436735609

Certificate GIA 5436735609

Diamond specifications and retailer prices

From €1,703 EUR
As of November 5, 2026
Save €2,224 EUR (57%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €3,927 EUR at MOH London · As of November 4, 2026
View at MOH London

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5436735609. Listed at 9 retailers as of November 4, 2026, with prices from €1,703 to €3,927, a €2,224 spread on the same certified stone. MOH London lists it at €3,927. 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

1.00
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 5436735609
Dimensions6.32 × 6.36 × 4.00 mm
L/W Ratio1.01
Key to symbols
Crystal, Feather, Indented Natural, Natural
Top View
6.32 mm6.36 mm1.00 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5436735609
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 63.1%

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 5
Current: €3,927 EUR|Low: €1,703 EUR|High: €4,307 EUR|Avg: €2,433 EUR|-8.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 6€1,703 EUR
Retailer 9€1,803 EUR
Retailer 8€1,924 EUR
Retailer 7€2,031 EUR
Retailer 2€2,151 EUR
Retailer 4€2,364 EUR
Retailer 3€2,654 EUR
Retailer 5€2,743 EUR
MOH London€3,927 EUR

14 data points across 9 retailers

9 retailers€1,703 EUR to €3,927 EUR

A
Cheapest Retailer
-
€1,703 EUR
A
Retailer 2
-
€1,803 EUR
View
Final sale: no returns
A
Retailer 3
-
€1,924 EUR
View
A
Retailer 4
-
€2,031 EUR
View
A
Retailer 5
-
€2,151 EUR
View
A
Retailer 6
-
€2,364 EUR
View
A
Retailer 7
-
€2,654 EUR
View
A
Retailer 8
-
€2,743 EUR
View
Most Expensive
B+
MOH London
E320763C6 · Nov 4
€3,927 EUR
£3,471 GBP
View
8 more retailers have this diamond
Prices start from €1,703 EURSave up to €2,224 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
1.00ct Round
€1,703 EUR