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Marquise|Natural|GIA

1.50ct G SI2 Marquise Natural Diamond

EX • G/SI2 • GIA 7553376681

Certificate GIA 7553376681

Diamond specifications and retailer prices

From $10,837 AUD
As of November 5, 2026
Save $8,398 AUD (44%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $23,148 AUD at NZ Jewellers · As of September 21, 2026
View at NZ Jewellers

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 7553376681. Listed at 14 retailers as of November 4, 2026, with a 77% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7553376681
Dimensions11.12 × 5.86 × 3.49 mm
L/W Ratio1.90
Key to symbols
Feather, Cavity, Indented Natural, Crystal, Cloud, Needle
Top View
11.12 mm5.86 mm1.50 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7553376681
Side View
Table 58.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 59.6%

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 5
Current: $14,292 AUD|Low: $10,837 AUD|High: $19,520 AUD|Avg: $13,937 AUD|+2.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 9$10,837 AUD
Retailer 6$11,573 AUD
Retailer 8$11,671 AUD
Retailer 5$12,333 AUD
Retailer 2$12,793 AUD
Retailer 1$14,292 AUD
Retailer 4$15,238 AUD
Retailer 7$16,498 AUD
Retailer 3$19,235 AUD

37 data points across 9 retailers

14 retailers$10,837 AUD to $19,235 AUD

A
Cheapest Retailer
-
$10,837 AUD
B+
Retailer 2
-
$11,671 AUD
View
B+
Retailer 3
-
$12,333 AUD
View
Retailer 4
-
$12,538 AUD
View
Price last confirmed 46 days ago
B+
Retailer 5
-
$12,793 AUD
View
B+
Retailer 6
-
$13,739 AUD
View
B+
Retailer 7
-
$13,739 AUD
View
B+
Retailer 8
-
$14,018 AUD
View
B+
Retailer 9
-
$14,190 AUD
View
B+
Retailer 10
-
$14,292 AUD
View
Retailer 11
-
$14,467 AUD
View
Price last confirmed 46 days ago
Retailer 12
-
$15,238 AUD
View
Price last confirmed 15 days ago
B
Retailer 13
-
$19,235 AUD
View
Most Expensive
NZ Jewellers
6635b5e3-a8e3-4295-8983-216d98b1ce47 · Sep 21
$23,148 AUD
$15,905 USD
View
Price last confirmed 46 days ago
13 more retailers have this diamond
Prices start from $10,837 AUDSave up to $8,398 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
$10,837 AUD