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Marquise|Natural|GIA

1.50ct G SI2 Marquise Natural Diamond

EX • G/SI2 • GIA 2557644890

Certificate GIA 2557644890

Diamond specifications and retailer prices

From $9,409 AUD
As of November 6, 2026
Save $2,424 AUD (20%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $11,833 AUD at GemTrove · As of November 6, 2026
View at GemTrove

About this 1.5ct natural marquise diamond

This 1.5ct natural marquise sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557644890. Listed at 6 retailers as of November 6, 2026, with prices from $9,409 to $11,833, a $2,424 spread on the same certified stone. GemTrove lists it at $11,833. 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
G
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557644890
Dimensions11.11 × 5.86 × 3.77 mm
L/W Ratio1.90
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Needle, Indented Natural
Top View
11.11 mm5.86 mm1.50 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557644890
Side View
Table 56.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 64.3%

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: $9,409 AUD|Low: $8,997 AUD|High: $11,109 AUD|Avg: $10,131 AUD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 1$9,409 AUD
Retailer 3$9,821 AUD
Retailer 4$10,218 AUD
Retailer 2$10,419 AUD
Retailer 5$10,633 AUD

46 data points across 5 retailers

6 retailers$9,409 AUD to $11,833 AUD

A
Cheapest Retailer
-
$9,409 AUD
A
Retailer 2
-
$9,821 AUD
View
A
Retailer 3
-
$10,218 AUD
View
A
Retailer 4
-
$10,419 AUD
View
B+
Retailer 5
-
$10,633 AUD
View
Final sale: no returns
Most Expensive
B+
GemTrove
GT-N-01274160-98 · Nov 6
$11,833 AUD
View
5 more retailers have this diamond
Prices start from $9,409 AUDSave up to $2,424 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 Marquise
$9,409 AUD