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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 $4,930 USD
As of November 1, 2026
Save $5,844 USD (54%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $10,774 USD at NZ Jewellers · As of November 5, 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 18 retailers as of November 1, 2026, with prices from $4,930 to $10,774, a $5,844 spread on the same certified stone. NZ Jewellers lists it at $10,774. 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
Color
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: $10,774 USD|Low: $4,489 USD|High: $10,774 USD|Avg: $7,136 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7$4,930 USD
Retailer 6$5,218 USD
Retailer 8$5,387 USD
Retailer 9$5,836 USD
Retailer 3$6,042 USD
Retailer 4$6,984 USD
Retailer 2$8,290 USD
Retailer 5$9,490 USD
NZ Jewellers$10,774 USD

42 data points across 9 retailers

18 retailers$4,930 USD to $10,774 USD

B+
Cheapest Retailer
-
$4,930 USD
B+
Retailer 2
-
$5,089 USD
View
B
Retailer 3
-
$5,218 USD
View
B
Retailer 4
-
$5,387 USD
View
Final sale: no returns
B
Retailer 5
-
$5,432 USD
View
Retailer 6
-
$5,836 USD
View
Price last confirmed 21 days ago
B
Retailer 7
-
$5,836 USD
View
B
Retailer 8
-
$5,836 USD
View
B+
Retailer 9
-
$6,042 USD
View
B
Retailer 10
-
$6,510 USD
View
B
Retailer 11
-
$6,510 USD
View
B
Retailer 12
-
$6,730 USD
View
B
Retailer 13
-
$6,734 USD
View
B
Retailer 14
-
$6,984 USD
View
Retailer 15
-
$7,102 USD
View
Price last confirmed 14 days ago
B
Retailer 16
-
$8,290 USD
View
B
Retailer 17
-
$9,490 USD
View
Most Expensive
B
NZ Jewellers
906b3ef9-9193-40ff-b4d3-cb703e82cc8f · Nov 5
$10,774 USD
View
17 more retailers have this diamond
Prices start from $4,930 USDSave up to $5,844 USD

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
$4,930 USD