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Round|Natural|GIA

1.50ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 1557087118

Certificate GIA 1557087118

Diamond specifications and retailer prices

From $3,514 AUD
As of November 6, 2026
Save $1,323 AUD (27%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $4,837 AUD at Michael Trio · As of November 6, 2026
View at Michael Trio

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 1557087118. Listed at 5 retailers as of November 6, 2026, with prices from $3,514 to $4,837, a $1,323 spread on the same certified stone. Michael Trio lists it at $4,837. 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
FluorescenceFaint
Crown angle35°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 1557087118
Dimensions7.23 × 7.29 × 4.59 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Feather, Indented Natural, Cavity
Top View
7.23 mm7.29 mm1.50 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1557087118
Side View
Table 58.0%Crown 35°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 63.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $4,837 AUD|Low: $3,514 AUD|High: $4,837 AUD|Avg: $4,096 AUD|+2.2%
Michael Trio
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 2$3,514 AUD
Retailer 4$4,146 AUD
Retailer 3$4,404 AUD
Michael Trio$4,837 AUD

46 data points across 4 retailers

5 retailers$3,514 AUD to $4,837 AUD

A
Cheapest Retailer
-
$3,514 AUD
A
Retailer 2
-
$4,146 AUD
View
B+
Retailer 3
-
$4,404 AUD
View
B+
Retailer 4
-
$4,508 AUD
View
Most Expensive
B+
Michael Trio
2480260689 · Nov 6
$4,837 AUD
SGD 4,576 SGD
View
4 more retailers have this diamond
Prices start from $3,514 AUDSave up to $1,323 AUD

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
$3,514 AUD