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Round|Natural|GIA

1.50ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 1515100506

Certificate GIA 1515100506

Diamond specifications and retailer prices

From €4,416 EUR
As of November 1, 2026
Save €5,234 EUR (54%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €9,650 EUR at NZ Jewellers · As of November 7, 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 J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1515100506. Listed at 19 retailers as of November 1, 2026, with prices from €4,416 to €9,650, a €5,234 spread on the same certified stone. NZ Jewellers lists it at €9,650. 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
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1515100506
Dimensions7.27 × 7.24 × 4.51 mm
L/W Ratio1.00
Star length55%
Lower girdle75%
Cert comments
Additional clouds are not shown. Pinpoints are not shown.
Key to symbols
Feather, Crystal, Indented Natural, Cavity, Cloud, Needle, Natural
Top View
7.27 mm7.24 mm1.50 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1515100506
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €5,053 EUR|Low: €4,021 EUR|High: €8,603 EUR|Avg: €5,855 EUR
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 7€4,416 EUR
Retailer 6€4,674 EUR
Retailer 8€4,825 EUR
Retailer 1€5,053 EUR
Retailer 9€5,227 EUR
Retailer 5€5,444 EUR
Retailer 2€6,263 EUR
Retailer 3€7,473 EUR
Retailer 4€8,454 EUR

42 data points across 9 retailers

19 retailers€4,416 EUR to €9,650 EUR

B+
Cheapest Retailer
-
€4,416 EUR
B+
Retailer 2
-
€4,558 EUR
View
B
Retailer 3
-
€4,674 EUR
View
B
Retailer 4
-
€4,825 EUR
View
Final sale: no returns
B
Retailer 5
-
€4,865 EUR
View
B+
Retailer 6
-
€5,053 EUR
View
B
Retailer 7
-
€5,227 EUR
View
B
Retailer 8
-
€5,227 EUR
View
B
Retailer 9
-
€5,227 EUR
View
B
Retailer 10
-
€5,444 EUR
View
B
Retailer 11
-
€5,831 EUR
View
B
Retailer 12
-
€5,831 EUR
View
B
Retailer 13
-
€6,028 EUR
View
B
Retailer 14
-
€6,031 EUR
View
B
Retailer 15
-
€6,263 EUR
View
Retailer 16
-
€6,361 EUR
View
Price last confirmed 15 days ago
B
Retailer 17
-
€7,473 EUR
View
B
Retailer 18
-
€8,454 EUR
View
Most Expensive
B
NZ Jewellers
906b3ef9-9193-40ff-b4d3-cb703e82cc8f · Nov 7
€9,650 EUR
$10,774 USD
View
18 more retailers have this diamond
Prices start from €4,416 EURSave up to €5,234 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.

B+
1.50ct Round
€4,416 EUR