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Radiant|Natural|GIA

1.51ct E SI2 Radiant Natural Diamond

EX • E/SI2

Diamond specifications and retailer prices

From €5,832 EUR
$6,516 USD
As of October 25, 2026
Save €5,833 EUR (50%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €11,775 EUR at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA. Listed at 19 retailers as of October 24, 2026, with a 100% 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

1.51
Carat
E
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
Dimensions7.67 × 5.68 × 3.79 mm
L/W Ratio1.35
Top View
7.67 mm5.68 mm1.51 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA
Side View
Table 67.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 66.7%

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: Oct 25
Current: €11,666 EUR|Low: €5,832 EUR|High: €11,775 EUR|Avg: €7,023 EUR|-0.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 3€5,832 EUR
Retailer 10€6,006 EUR
Retailer 7€6,198 EUR
Retailer 5€6,318 EUR
Retailer 4€6,416 EUR
Retailer 8€6,540 EUR
Retailer 2€6,592 EUR
Retailer 9€6,912 EUR
Retailer 6€7,291 EUR
NZ Jewellers€11,666 EUR

40 data points across 10 retailers

19 retailers€5,832 EUR to €11,666 EUR

A
Cheapest Retailer
-
€5,832 EUR
$6,516 USD
A
Retailer 2
-
€5,832 EUR
$6,516 USD
View
Retailer 3
-
€5,887 EUR
$6,577 USD
View
Price last confirmed 22 days ago
A
Retailer 4
-
€6,006 EUR
CA$9,320 CAD
View
A
Retailer 5
-
€6,198 EUR
$6,924 USD
View
A
Retailer 6
-
€6,318 EUR
$7,059 USD
View
B+
Retailer 7
-
€6,318 EUR
$7,059 USD
View
Retailer 8
-
€6,378 EUR
$7,125 USD
View
Price last confirmed 22 days ago
B+
Retailer 9
-
€6,416 EUR
$7,168 USD
View
B+
Retailer 10
-
€6,416 EUR
$7,168 USD
View
Retailer 11
-
€6,476 EUR
$7,235 USD
View
Price last confirmed 29 days ago
B+
Retailer 12
-
€6,540 EUR
$7,306 USD
View
B+
Retailer 13
-
€6,592 EUR
£5,799 GBP
View
B+
Retailer 14
-
€6,912 EUR
$7,722 USD
View
Retailer 15
-
€7,291 EUR
$8,145 USD
View
Price last confirmed 7 days ago
Retailer 16
-
€7,359 EUR
$8,222 USD
View
Price last confirmed 53 days ago
Retailer 17
-
€7,359 EUR
$8,222 USD
View
Price last confirmed 31 days ago
B
Retailer 18
-
€11,666 EUR
$13,033 USD
View
Most Expensive
NZ Jewellers
ff8c50ad-30fc-4b3c-9998-5b3eced69d03 · Sep 30
€11,775 EUR
$13,155 USD
View
Price last confirmed 30 days ago
18 more retailers have this diamond
Prices start from €5,832 EURSave up to €5,833 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
€5,832 EUR