Heart|Natural|GIA

1.50ct K SI1 Heart Natural Diamond

EX • K/SI1 • GIA 6542475806

Certificate GIA 6542475806

Diamond specifications and retailer prices

From €1,914 EUR
As of November 6, 2026
Save €2,494 EUR (57%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €5,259 EUR at NZ Jewellers · As of October 18, 2026
View at NZ Jewellers

About this 1.5ct natural heart diamond

This 1.5ct natural heart 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 6542475806. Listed at 16 retailers as of November 2, 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
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6542475806
Dimensions7.17 × 8.28 × 4.54 mm
L/W Ratio1.15
Top View
7.17 mm8.28 mm1.50 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6542475806
Side View
Table 64.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 54.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: €5,259 EUR|Low: €1,892 EUR|High: €5,259 EUR|Avg: €2,822 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 6, 2026
Retailer 12€1,914 EUR
Retailer 10€1,943 EUR
Retailer 2€2,039 EUR
Retailer 13€2,468 EUR
Retailer 4€2,516 EUR
Retailer 6€2,516 EUR
Retailer 14€2,613 EUR
Retailer 7€2,659 EUR
Retailer 8€2,663 EUR
Retailer 5€2,732 EUR
Retailer 3€2,903 EUR
Retailer 9€3,070 EUR
Retailer 11€4,408 EUR
NZ Jewellers€5,259 EUR

35 data points across 14 retailers

16 retailers€1,914 EUR to €4,408 EUR

A
Cheapest Retailer
-
€1,914 EUR
A
Retailer 2
-
€1,943 EUR
View
A
Retailer 3
-
€2,039 EUR
View
A
Retailer 4
-
€2,387 EUR
View
A
Retailer 5
-
€2,468 EUR
View
Retailer 6
-
€2,516 EUR
View
Price last confirmed 21 days ago
Retailer 7
-
€2,516 EUR
View
Price last confirmed 19 days ago
Retailer 8
-
€2,613 EUR
View
Price last confirmed 21 days ago
A
Retailer 9
-
€2,659 EUR
View
A
Retailer 10
-
€2,663 EUR
View
B+
Retailer 11
-
€2,665 EUR
View
B+
Retailer 12
-
€2,732 EUR
View
Retailer 13
-
€2,903 EUR
View
Price last confirmed 18 days ago
B+
Retailer 14
-
€3,070 EUR
View
B
Retailer 15
-
€4,408 EUR
View
Most Expensive
NZ Jewellers
06b791bb-6a5c-4c82-83ca-7c84a71cfb71 · Oct 18
€5,259 EUR
$5,872 USD
View
Price last confirmed 19 days ago
15 more retailers have this diamond
Prices start from €1,914 EURSave up to €2,494 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 Heart
€1,914 EUR