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Radiant|Natural|GIA

1.51ct J SI2 Radiant Natural Diamond

ID • J/SI2 • GIA 1509049420

Certificate GIA 1509049420

Diamond specifications and retailer prices

From €2,118 EUR
£1,864 GBP
As of November 1, 2026
Save €2,587 EUR (55%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: €4,705 EUR at NZ Jewellers · As of October 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 J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1509049420. Listed at 7 retailers as of October 30, 2026, with prices from €2,118 to €4,705, a €2,587 spread on the same certified stone. NZ Jewellers lists it at €4,705. 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
J
Color
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.94°
Pavilion angle30.54°
OriginNatural
Grading LabGIA
CertificateGIA 1509049420
Dimensions7.29 × 5.66 × 3.86 mm
L/W Ratio1.29
Girdle conditionVery Thick
Key to symbols
Crystal, Cloud, Needle
Top View
7.29 mm5.66 mm1.51 ctJ / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1509049420
Side View
Table 68.0%Crown 46.94°Girdle: ThickPavilion 30.54°Culet: NoneDepth 68.2%

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 1
Current: €4,705 EUR|Low: €2,053 EUR|High: €4,847 EUR|Avg: €2,951 EUR|-2.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 4€2,118 EUR
Retailer 2€2,225 EUR
Retailer 6€2,250 EUR
Retailer 5€2,354 EUR
Retailer 7€2,380 EUR
Retailer 3€3,943 EUR
NZ Jewellers€4,705 EUR

41 data points across 7 retailers

7 retailers€2,118 EUR to €4,705 EUR

A
Cheapest Retailer
-
€2,118 EUR
£1,864 GBP
A
Retailer 2
-
€2,225 EUR
£1,957 GBP
View
A
Retailer 3
-
€2,250 EUR
$2,514 USD
View
A
Retailer 4
-
€2,354 EUR
$2,630 USD
View
A
Retailer 5
-
€2,380 EUR
$2,659 USD
View
B+
Retailer 6
-
€3,943 EUR
£3,469 GBP
View
Most Expensive
B
NZ Jewellers
2e6e491d-5770-4b9f-a3a8-e7cd0dc121c4 · Oct 30
€4,705 EUR
$5,257 USD
View
6 more retailers have this diamond
Prices start from €2,118 EURSave up to €2,587 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
€2,118 EUR