Radiant|Natural|GIA

1.50ct K SI1 Radiant Natural Diamond

EX • K/SI1 • GIA 2554814067

Certificate GIA 2554814067

Diamond specifications and retailer prices

From €3,578 EUR
As of November 7, 2026
Save €2,951 EUR (45%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €6,529 EUR at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.5ct natural radiant diamond

This 1.5ct natural radiant sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2554814067. Listed at 11 retailers as of November 5, 2026, with prices from €3,578 to €6,529, a €2,951 spread on the same certified stone. NZ Jewellers lists it at €6,529. 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

1.50
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2554814067
Dimensions8.21 × 5.67 × 3.80 mm
L/W Ratio1.45
Culet sizeNone
Top View
8.21 mm5.67 mm1.50 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2554814067
Side View
Table 67.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 67.0%

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 7
Current: €6,529 EUR|Low: €3,578 EUR|High: €6,943 EUR|Avg: €4,489 EUR|-6.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 3€3,578 EUR
Retailer 4€3,635 EUR
Retailer 8€3,747 EUR
Retailer 10€3,747 EUR
Retailer 11€3,747 EUR
Retailer 2€3,796 EUR
Retailer 5€4,217 EUR
Retailer 9€4,324 EUR
Retailer 6€4,574 EUR
Retailer 7€6,250 EUR
NZ Jewellers€6,529 EUR

29 data points across 11 retailers

11 retailers€3,578 EUR to €6,529 EUR

A
Cheapest Retailer
-
€3,578 EUR
B+
Retailer 2
-
€3,635 EUR
View
B+
Retailer 3
-
€3,747 EUR
View
Retailer 4
-
€3,747 EUR
View
Price last confirmed 9 days ago
B+
Retailer 5
-
€3,747 EUR
View
B+
Retailer 6
-
€3,796 EUR
View
B+
Retailer 7
-
€4,217 EUR
View
B+
Retailer 8
-
€4,324 EUR
View
B+
Retailer 9
-
€4,574 EUR
View
B
Retailer 10
-
€6,250 EUR
View
Most Expensive
B
NZ Jewellers
ed42692b-97ac-4d77-86b6-d376420476bd · Nov 5
€6,529 EUR
$7,290 USD
View
10 more retailers have this diamond
Prices start from €3,578 EURSave up to €2,951 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
1.50ct Radiant
€3,578 EUR