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Radiant|Natural|GIA

1.51ct E SI1 Radiant Natural Diamond

EX • E/SI1 • GIA 1553522952

Certificate GIA 1553522952

Diamond specifications and retailer prices

From €5,601 EUR
$6,257 USD
As of October 31, 2026
Save €3,778 EUR (40%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: €9,378 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1553522952. Listed at 6 retailers as of October 31, 2026, with prices from €5,601 to €9,378, a €3,778 spread on the same certified stone. MOH London lists it at €9,378. 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

1.51
Carat
E
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.86°
Pavilion angle30.38°
OriginNatural
Grading LabGIA
CertificateGIA 1553522952
Dimensions7.27 × 5.64 × 3.89 mm
L/W Ratio1.29
Girdle conditionThick
Key to symbols
Crystal, Cloud, Feather, Indented Natural, Needle
Top View
7.27 mm5.64 mm1.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553522952
Side View
Table 65.0%Crown 44.86°Girdle: STK-THKPavilion 30.38°Culet: NoneDepth 68.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: €9,378 EUR|Low: €5,004 EUR|High: €9,378 EUR|Avg: €6,062 EUR
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 6€5,004 EUR
Retailer 7€5,514 EUR
Retailer 4€5,601 EUR
Retailer 3€5,890 EUR
Retailer 2€5,956 EUR
Retailer 9€6,013 EUR
Retailer 5€6,051 EUR
Retailer 8€7,013 EUR
MOH London€9,378 EUR

10 data points across 9 retailers

6 retailers€5,601 EUR to €9,378 EUR

Retailer 1
-
€5,004 EUR
$5,590 USD
Price last confirmed 11 days ago
A
Retailer 2
-
€5,601 EUR
$6,257 USD
View
A
Retailer 3
-
€5,890 EUR
$6,580 USD
View
A
Retailer 4
-
€5,956 EUR
£5,239 GBP
View
A
Retailer 5
-
€6,051 EUR
$6,760 USD
View
Most Expensive
B
MOH London
C5EB9B06C · Nov 1
€9,378 EUR
£8,250 GBP
View
5 more retailers have this diamond
Prices start from €5,601 EURSave up to €3,778 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
1.51ct Radiant
€5,601 EUR