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Marquise|Natural|GIA

1.50ct I SI2 Marquise Natural Diamond

EX • I/SI2 • GIA 2245011740

Certificate GIA 2245011740

Diamond specifications and retailer prices

From $9,798 AUD
As of November 6, 2026
Save $8,902 AUD (48%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $18,700 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 1.5ct natural marquise diamond

This 1.5ct natural marquise sits in the one-and-a-half to two carat band, graded I 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 2245011740. Listed at 14 retailers as of November 4, 2026, with prices from $9,798 to $18,700, a $8,902 spread on the same certified stone. MOH London lists it at $18,700. 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
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2245011740
Dimensions11.83 × 6.09 × 3.64 mm
L/W Ratio1.94
Culet sizeNone
Top View
11.83 mm6.09 mm1.50 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2245011740
Side View
Table 58.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 59.9%

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 6
Current: $18,700 AUD|Low: $9,798 AUD|High: $18,975 AUD|Avg: $13,711 AUD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 4$9,798 AUD
Retailer 8$9,825 AUD
Retailer 3$12,429 AUD
Retailer 7$12,470 AUD
Retailer 9$12,569 AUD
Retailer 2$13,037 AUD
Retailer 6$13,618 AUD
Retailer 5$14,641 AUD
MOH London$18,700 AUD

43 data points across 9 retailers

14 retailers$9,798 AUD to $18,700 AUD

B+
Cheapest Retailer
-
$9,798 AUD
B+
Retailer 2
-
$9,825 AUD
View
B+
Retailer 3
-
$10,495 AUD
View
B+
Retailer 4
-
$10,821 AUD
View
B+
Retailer 5
-
$12,429 AUD
View
B
Retailer 6
-
$12,470 AUD
View
B
Retailer 7
-
$12,569 AUD
View
B
Retailer 8
-
$13,037 AUD
View
B
Retailer 9
-
$13,375 AUD
View
B
Retailer 10
-
$13,375 AUD
View
B
Retailer 11
-
$13,618 AUD
View
B
Retailer 12
-
$13,812 AUD
View
B
Retailer 13
-
$14,641 AUD
View
Most Expensive
B
MOH London
B80DC7246 · Nov 4
$18,700 AUD
£10,117 GBP
View
13 more retailers have this diamond
Prices start from $9,798 AUDSave up to $8,902 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.

B+
1.50ct Marquise
$9,798 AUD