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Radiant|Natural|GIA

1.51ct K SI2 Radiant Natural Diamond

ID • K/SI2 • GIA 6243086864

Certificate GIA 6243086864

Diamond specifications and retailer prices

From €1,765 EUR
As of November 5, 2026
Save €3,242 EUR (65%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €5,008 EUR at NZ Jewellers · As of November 5, 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6243086864. Listed at 10 retailers as of November 5, 2026, with prices from €1,765 to €5,008, a €3,242 spread on the same certified stone. NZ Jewellers lists it at €5,008. 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
K
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryExcellent
FluorescenceFaint
Pavilion angle58.69°
OriginNatural
Grading LabGIA
CertificateGIA 6243086864
Dimensions7.87 × 5.63 × 3.92 mm
L/W Ratio1.40
Key to symbols
Crystal, Feather, Needle
Top View
7.87 mm5.63 mm1.51 ctK / SI2
OriginNatural
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6243086864
Side View
Table 64.0%CrownGirdle: THN-MEDPavilion 58.69°Culet: NoneDepth 69.7%

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: Nov 5
Current: €5,008 EUR|Low: €1,765 EUR|High: €5,326 EUR|Avg: €3,065 EUR|-6.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 5€1,765 EUR
Retailer 3€2,386 EUR
Retailer 6€2,395 EUR
Retailer 4€2,454 EUR
Retailer 2€2,487 EUR
Retailer 7€2,612 EUR
Retailer 9€2,878 EUR
Retailer 10€3,695 EUR
Retailer 8€4,252 EUR
NZ Jewellers€5,008 EUR

26 data points across 10 retailers

10 retailers€1,765 EUR to €5,008 EUR

A
Cheapest Retailer
-
€1,765 EUR
A
Retailer 2
-
€2,386 EUR
View
A
Retailer 3
-
€2,395 EUR
View
A
Retailer 4
-
€2,454 EUR
View
A
Retailer 5
-
€2,487 EUR
View
A
Retailer 6
-
€2,612 EUR
View
A
Retailer 7
-
€2,878 EUR
View
B+
Retailer 8
-
€3,695 EUR
View
B+
Retailer 9
-
€4,252 EUR
View
Most Expensive
B
NZ Jewellers
c933f9ce-d291-4579-89d0-8e423e614e02 · Nov 5
€5,008 EUR
$5,591 USD
View
9 more retailers have this diamond
Prices start from €1,765 EURSave up to €3,242 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
€1,765 EUR