Radiant|Natural|GIA

1.50ct K SI1 Radiant Natural Diamond

EX • K/SI1 • GIA 6542466536

Certificate GIA 6542466536

Diamond specifications and retailer prices

From €1,937 EUR
As of November 6, 2026
Save €2,525 EUR (57%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €5,378 EUR at NZ Jewellers · As of September 30, 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 6542466536. Listed at 18 retailers as of November 4, 2026, with a 130% 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
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6542466536
Dimensions7.68 × 5.72 × 3.86 mm
L/W Ratio1.34
Top View
7.68 mm5.72 mm1.50 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6542466536
Side View
Table 68.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 67.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: €2,423 EUR|Low: €1,937 EUR|High: €4,521 EUR|Avg: €2,830 EUR|-3.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 2€1,937 EUR
Retailer 4€2,069 EUR
Retailer 9€2,281 EUR
Retailer 1€2,423 EUR
Retailer 5€2,477 EUR
Retailer 6€2,700 EUR
Retailer 3€2,703 EUR
Retailer 7€2,973 EUR
Retailer 8€3,117 EUR
Retailer 10€4,462 EUR

25 data points across 10 retailers

18 retailers€1,937 EUR to €4,462 EUR

A
Cheapest Retailer
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€1,937 EUR
A
Retailer 2
-
€2,069 EUR
View
A
Retailer 3
-
€2,281 EUR
View
A
Retailer 4
-
€2,423 EUR
View
A
Retailer 5
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€2,423 EUR
View
A
Retailer 6
-
€2,477 EUR
View
Retailer 7
-
€2,572 EUR
View
Price last confirmed 30 days ago
Retailer 8
-
€2,572 EUR
View
Price last confirmed 30 days ago
A
Retailer 9
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€2,578 EUR
View
Retailer 10
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€2,672 EUR
View
Price last confirmed 38 days ago
A
Retailer 11
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€2,680 EUR
View
A
Retailer 12
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€2,700 EUR
View
A
Retailer 13
-
€2,703 EUR
View
Retailer 14
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€2,968 EUR
View
Price last confirmed 29 days ago
A
Retailer 15
-
€2,973 EUR
View
A
Retailer 16
-
€3,117 EUR
View
B
Retailer 17
-
€4,462 EUR
View
Most Expensive
NZ Jewellers
26738c81-d90b-4ff3-af35-ecd2c1c77dc9 · Sep 30
€5,378 EUR
$6,005 USD
View
Price last confirmed 37 days ago
17 more retailers have this diamond
Prices start from €1,937 EURSave up to €2,525 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
€1,937 EUR