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Radiant|Natural|GIA

1.51ct F SI1 Radiant Natural Diamond

ID • F/SI1 • GIA 2556028833

Certificate GIA 2556028833

Diamond specifications and retailer prices

From €5,325 EUR
$5,973 USD
As of November 2, 2026
Save €4,774 EUR (47%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €10,100 EUR at NZ Jewellers · As of November 3, 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 F 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 2556028833. Listed at 9 retailers as of November 2, 2026, with prices from €5,325 to €10,100, a €4,774 spread on the same certified stone. NZ Jewellers lists it at €10,100. 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
F
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.89°
Pavilion angle34.11°
OriginNatural
Grading LabGIA
CertificateGIA 2556028833
Dimensions7.58 × 5.77 × 3.90 mm
L/W Ratio1.31
Top View
7.58 mm5.77 mm1.51 ctF / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556028833
Side View
Table 70.0%Crown 44.89°Girdle: Slightly ThickPavilion 34.11°Culet: NoneDepth 67.6%

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 2
Current: €10,100 EUR|Low: €5,325 EUR|High: €10,339 EUR|Avg: €6,708 EUR|-2.3%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 9€5,325 EUR
Retailer 8€5,599 EUR
Retailer 5€5,650 EUR
Retailer 12€5,884 EUR
Retailer 10€6,032 EUR
Retailer 6€6,039 EUR
Retailer 2€6,131 EUR
Retailer 11€6,218 EUR
Retailer 4€6,430 EUR
Retailer 3€6,834 EUR
Retailer 7€8,897 EUR
NZ Jewellers€10,100 EUR

38 data points across 12 retailers

9 retailers€5,325 EUR to €10,100 EUR

A
Cheapest Retailer
-
€5,325 EUR
$5,973 USD
A
Retailer 2
-
€5,599 EUR
$6,280 USD
View
A
Retailer 3
-
€5,650 EUR
£4,990 GBP
View
Retailer 4
-
€6,032 EUR
A$10,408 AUD
View
Price last confirmed 30 days ago
A
Retailer 5
-
€6,039 EUR
$6,773 USD
View
A
Retailer 6
-
€6,131 EUR
$6,877 USD
View
B+
Retailer 7
-
€6,218 EUR
$6,974 USD
View
B+
Retailer 8
-
€8,897 EUR
£7,857 GBP
View
Most Expensive
B
NZ Jewellers
8996cd54-20d8-49ae-966b-2b52284cc1fc · Nov 3
€10,100 EUR
$11,328 USD
View
8 more retailers have this diamond
Prices start from €5,325 EURSave up to €4,774 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
€5,325 EUR