Radiant|Natural|GIA

1.50ct K SI1 Radiant Natural Diamond

EX • K/SI1 • GIA 2506294196

Certificate GIA 2506294196

Diamond specifications and retailer prices

From €1,961 EUR
As of November 2, 2026
Save €1,562 EUR (44%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €4,365 EUR at NZ Jewellers · As of September 20, 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 2506294196. Listed at 9 retailers as of November 2, 2026, with a 80% 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

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

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle48.63°
Pavilion angle32.76°
OriginNatural
Grading LabGIA
CertificateGIA 2506294196
Dimensions7.31 × 5.69 × 3.96 mm
L/W Ratio1.28
Top View
7.31 mm5.69 mm1.50 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2506294196
Side View
Table 69.0%Crown 48.63°GirdlePavilion 32.76°CuletDepth 69.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 2
Current: €1,961 EUR|Low: €1,961 EUR|High: €3,702 EUR|Avg: €2,428 EUR|-1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 1€1,961 EUR
Retailer 3€2,020 EUR
Retailer 4€2,051 EUR
Retailer 7€2,339 EUR
Retailer 6€2,384 EUR
Retailer 5€2,468 EUR
Retailer 2€3,524 EUR

28 data points across 7 retailers

9 retailers€1,961 EUR to €3,524 EUR

A
Cheapest Retailer
-
€1,961 EUR
A
Retailer 2
-
€2,020 EUR
View
A
Retailer 3
-
€2,051 EUR
View
Retailer 4
-
€2,056 EUR
View
Price last confirmed 30 days ago
Retailer 5
-
€2,088 EUR
View
Price last confirmed 46 days ago
Retailer 6
-
€2,185 EUR
View
Price last confirmed 38 days ago
B+
Retailer 7
-
€3,524 EUR
View
Retailer 8
-
€4,297 EUR
View
Price last confirmed 35 days ago
Most Expensive
NZ Jewellers
28e0a51c-b182-4258-9cb4-63c50580162f · Sep 20
€4,365 EUR
$4,874 USD
View
Price last confirmed 47 days ago
8 more retailers have this diamond
Prices start from €1,961 EURSave up to €1,562 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
€1,961 EUR