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Round|Natural|GIA

1.23ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 6247074140

Certificate GIA 6247074140

Diamond specifications and retailer prices

From €3,956 EUR
As of November 1, 2026
Save €3,165 EUR (44%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: €7,121 EUR at MOH London · As of November 2, 2026
View at MOH London

About this 1.23ct natural round diamond

This 1.23ct 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 6247074140. Listed at 6 retailers as of November 1, 2026, with prices from €3,956 to €7,121, a €3,165 spread on the same certified stone. MOH London lists it at €7,121. 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

1.23
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6247074140
Dimensions6.77 × 6.82 × 4.28 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Cloud, Needle
Top View
6.77 mm6.82 mm1.23 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6247074140
Side View
Table 57.0%Crown 35.5°Girdle: Sli. ThickPavilion 41°Culet: NoneDepth 62.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €7,121 EUR|Low: €3,956 EUR|High: €7,794 EUR|Avg: €5,090 EUR|-7.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 5€3,956 EUR
Retailer 4€4,024 EUR
Retailer 2€4,374 EUR
Retailer 6€4,800 EUR
Retailer 3€5,021 EUR
MOH London€7,121 EUR

42 data points across 6 retailers

6 retailers€3,956 EUR to €7,121 EUR

B+
Cheapest Retailer
-
€3,956 EUR
B+
Retailer 2
-
€4,024 EUR
View
B+
Retailer 3
-
€4,374 EUR
View
Retailer 4
-
€4,800 EUR
View
Price last confirmed 28 days ago
B+
Retailer 5
-
€5,021 EUR
View
Most Expensive
B
MOH London
6DEF767AC · Nov 2
€7,121 EUR
£6,293 GBP
View
5 more retailers have this diamond
Prices start from €3,956 EURSave up to €3,165 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.

B+
1.23ct Round
€3,956 EUR