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Round|Natural|GIA

1.50ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 5403991543

Certificate GIA 5403991543

Diamond specifications and retailer prices

From €2,856 EUR
As of November 4, 2026
Save €3,839 EUR (57%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: €6,818 EUR at NZ Jewellers · As of September 10, 2026
View at NZ Jewellers

About this 1.5ct natural round diamond

This 1.5ct natural round 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 and certified by GIA 5403991543. Listed at 23 retailers as of November 4, 2026, with a 134% 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 5403991543
Dimensions7.31 × 7.25 × 4.56 mm
L/W Ratio1.01
Top View
7.31 mm7.25 mm1.50 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5403991543
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.6%

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 4
Current: €6,695 EUR|Low: €2,572 EUR|High: €6,818 EUR|Avg: €4,232 EUR|-1.8%
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 6, 2026
Retailer 14€2,856 EUR
Retailer 6€2,953 EUR
Retailer 4€2,954 EUR
Retailer 7€3,003 EUR
Retailer 8€3,031 EUR
Retailer 5€3,064 EUR
Retailer 16€3,475 EUR
Retailer 3€3,482 EUR
Retailer 17€3,482 EUR
Retailer 19€3,482 EUR
Retailer 9€3,718 EUR
Retailer 18€3,789 EUR
Retailer 2€3,845 EUR
Retailer 10€4,017 EUR
Retailer 13€4,062 EUR
Retailer 12€4,344 EUR
Retailer 11€5,557 EUR
Retailer 15€6,121 EUR
NZ Jewellers€6,695 EUR

43 data points across 19 retailers

23 retailers€2,856 EUR to €6,695 EUR

A
Cheapest Retailer
-
€2,856 EUR
A
Retailer 2
-
€2,953 EUR
View
A
Retailer 3
-
€2,954 EUR
View
A
Retailer 4
-
€3,003 EUR
View
A
Retailer 5
-
€3,031 EUR
View
A
Retailer 6
-
€3,064 EUR
View
B+
Retailer 7
-
€3,475 EUR
View
B+
Retailer 8
-
€3,482 EUR
View
Retailer 9
-
€3,482 EUR
View
Price last confirmed 8 days ago
B+
Retailer 10
-
€3,482 EUR
View
Retailer 11
-
€3,546 EUR
View
Price last confirmed 56 days ago
Retailer 12
-
€3,618 EUR
View
Price last confirmed 14 days ago
B+
Retailer 13
-
€3,718 EUR
View
B+
Retailer 14
-
€3,789 EUR
View
B+
Retailer 15
-
€3,845 EUR
View
B+
Retailer 16
-
€4,017 EUR
View
B+
Retailer 17
-
€4,062 EUR
View
Retailer 18
-
€4,091 EUR
View
Price last confirmed 60 days ago
B+
Retailer 19
-
€4,344 EUR
View
B
Retailer 20
-
€5,557 EUR
View
B
Retailer 21
-
€6,121 EUR
View
B
Retailer 22
-
€6,695 EUR
View
Most Expensive
NZ Jewellers
b87281be-c421-4565-b3fd-f27d96f175c9 · Sep 10
€6,818 EUR
$7,653 USD
View
Price last confirmed 56 days ago
22 more retailers have this diamond
Prices start from €2,856 EURSave up to €3,839 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 Round
€2,856 EUR