CaratHunter
Plans
Marquise|Natural|GIA

1.50ct M SI1 Marquise Natural Diamond

EX • M/SI1 • GIA 3555373615

Certificate GIA 3555373615

Diamond specifications and retailer prices

From $4,135 AUD
As of November 6, 2026
Save $4,132 AUD (50%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $8,267 AUD at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

About this 1.5ct natural marquise diamond

This 1.5ct natural marquise sits in the one-and-a-half to two carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3555373615. Listed at 9 retailers as of November 6, 2026, with prices from $4,135 to $8,267, a $4,132 spread on the same certified stone. Wholesale Diamonds Direct lists it at $8,267. 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
M
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 3555373615
Dimensions10.96 × 5.92 × 3.88 mm
L/W Ratio1.85
Girdle conditionFaceted
Top View
10.96 mm5.92 mm1.50 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 3555373615
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 65.5%

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: $6,276 AUD|Low: $4,098 AUD|High: $10,023 AUD|Avg: $6,002 AUD|+1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Wholesale Diamonds Direct
November 6, 2026
Retailer 6$4,135 AUD
Retailer 10$4,583 AUD
Retailer 8$4,603 AUD
Retailer 4$4,756 AUD
Retailer 5$4,956 AUD
Retailer 7$5,001 AUD
Retailer 9$5,589 AUD
Retailer 1$6,276 AUD
Retailer 3$6,942 AUD
Wholesale Diamonds Direct$8,267 AUD
Retailer 2$10,023 AUD

21 data points across 11 retailers

9 retailers$4,135 AUD to $8,267 AUD

A
Cheapest Retailer
-
$4,135 AUD
B+
Retailer 2
-
$4,603 AUD
View
B+
Retailer 3
-
$4,756 AUD
View
Final sale: no returns
B+
Retailer 4
-
$4,956 AUD
View
B+
Retailer 5
-
$5,001 AUD
View
B
Retailer 6
-
$5,589 AUD
View
B
Retailer 7
-
$6,276 AUD
View
B
Retailer 8
-
$6,942 AUD
View
Most Expensive
B
Wholesale Diamonds Direct
625971138 · Nov 6
$8,267 AUD
$5,680 USD
View
8 more retailers have this diamond
Prices start from $4,135 AUDSave up to $4,132 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
$4,135 AUD