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Round|Natural|GIA

1.50ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2554462236

Certificate GIA 2554462236

Diamond specifications and retailer prices

From €4,313 EUR
As of November 1, 2026
Save €5,269 EUR (55%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: €9,582 EUR at NZ Jewellers · As of November 2, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2554462236. Listed at 27 retailers as of November 1, 2026, with prices from €4,313 to €9,582, a €5,269 spread on the same certified stone. NZ Jewellers lists it at €9,582. 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2554462236
Dimensions7.28 × 7.25 × 4.56 mm
L/W Ratio1.00
Star length50%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle, Indented Natural
Top View
7.28 mm7.25 mm1.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2554462236
Side View
Table 57.0%Crown 36°Girdle: Slightly ThickPavilion 41.2°Culet: NoneDepth 62.8%

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 1
Current: €9,582 EUR|Low: €4,313 EUR|High: €9,582 EUR|Avg: €5,611 EUR|+3.9%
NZ Jewellers
Retailer 2
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Retailer 26
Retailer 27
November 5, 2026
Retailer 3€4,313 EUR
Retailer 6€4,373 EUR
Retailer 7€4,400 EUR
Retailer 12€4,526 EUR
Retailer 26€4,528 EUR
Retailer 8€4,585 EUR
Retailer 14€4,790 EUR
Retailer 27€4,846 EUR
Retailer 18€5,011 EUR
Retailer 15€5,089 EUR
Retailer 9€5,123 EUR
Retailer 4€5,190 EUR
Retailer 5€5,190 EUR
Retailer 10€5,190 EUR
Retailer 16€5,251 EUR
Retailer 25€5,283 EUR
Retailer 21€5,459 EUR
Retailer 19€5,484 EUR
Retailer 17€5,677 EUR
Retailer 20€5,705 EUR
Retailer 22€5,892 EUR
Retailer 11€5,988 EUR
Retailer 2€6,106 EUR
Retailer 24€7,039 EUR
Retailer 13€8,302 EUR
Retailer 23€8,440 EUR
NZ Jewellers€9,582 EUR

31 data points across 27 retailers

27 retailers€4,313 EUR to €9,582 EUR

A
Cheapest Retailer
-
€4,313 EUR
A
Retailer 2
-
€4,373 EUR
View
A
Retailer 3
-
€4,400 EUR
View
A
Retailer 4
-
€4,526 EUR
View
A
Retailer 5
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€4,528 EUR
View
A
Retailer 6
-
€4,585 EUR
View
A
Retailer 7
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€4,709 EUR
View
A
Retailer 8
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€4,846 EUR
View
B+
Retailer 9
-
€5,011 EUR
View
B+
Retailer 10
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€5,089 EUR
View
B+
Retailer 11
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€5,123 EUR
View
B+
Retailer 12
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€5,190 EUR
View
B+
Retailer 13
-
€5,190 EUR
View
Retailer 14
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€5,190 EUR
View
Price last confirmed 9 days ago
Retailer 15
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€5,251 EUR
View
Price last confirmed 23 days ago
B+
Retailer 16
-
€5,283 EUR
View
B+
Retailer 17
-
€5,459 EUR
View
Retailer 18
-
€5,484 EUR
View
Price last confirmed 35 days ago
B+
Retailer 19
-
€5,677 EUR
View
Retailer 20
-
€5,705 EUR
View
Price last confirmed 32 days ago
B+
Retailer 21
-
€5,892 EUR
View
B+
Retailer 22
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€5,988 EUR
View
B+
Retailer 23
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€6,106 EUR
View
B+
Retailer 24
-
€7,039 EUR
View
B
Retailer 25
-
€8,302 EUR
View
B
Retailer 26
-
€8,440 EUR
View
Most Expensive
B
NZ Jewellers
567a0f31-d2f5-4f2a-9708-cf85a34a9260 · Nov 2
€9,582 EUR
$10,698 USD
View
26 more retailers have this diamond
Prices start from €4,313 EURSave up to €5,269 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
€4,313 EUR