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Marquise|Natural|GIA

1.50ct G SI2 Marquise Natural Diamond

EX • G/SI2 • GIA 1568212658

Certificate GIA 1568212658

Diamond specifications and retailer prices

From $9,718 AUD
As of November 6, 2026
Save $11,923 AUD (55%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $21,640 AUD at NZ Jewellers · As of November 5, 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 1568212658. Listed at 16 retailers as of November 5, 2026, with prices from $9,718 to $21,640, a $11,923 spread on the same certified stone. NZ Jewellers lists it at $21,640. 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
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1568212658
Dimensions11.74 × 5.86 × 3.53 mm
L/W Ratio2.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Knot, Natural
Top View
11.74 mm5.86 mm1.50 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1568212658
Side View
Table 58.0%CrownGirdle: Very ThickPavilionCulet: NDepth 60.2%

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: $21,640 AUD|Low: $9,718 AUD|High: $22,949 AUD|Avg: $13,686 AUD|-5.7%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 6, 2026
Retailer 2$9,718 AUD
Retailer 12$10,948 AUD
Retailer 4$11,182 AUD
Retailer 8$11,907 AUD
Retailer 11$11,944 AUD
Retailer 16$11,963 AUD
Retailer 7$12,447 AUD
Retailer 9$12,467 AUD
Retailer 3$12,546 AUD
Retailer 6$12,939 AUD
Retailer 14$13,138 AUD
Retailer 5$13,221 AUD
Retailer 10$13,340 AUD
Retailer 15$14,929 AUD
Retailer 13$17,981 AUD
NZ Jewellers$21,640 AUD

18 data points across 16 retailers

16 retailers$9,718 AUD to $21,640 AUD

A
Cheapest Retailer
-
$9,718 AUD
A
Retailer 2
-
$10,948 AUD
View
A
Retailer 3
-
$11,182 AUD
View
B+
Retailer 4
-
$11,907 AUD
View
B+
Retailer 5
-
$11,944 AUD
View
A
Retailer 6
-
$11,963 AUD
View
Retailer 7
-
$12,447 AUD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
$12,467 AUD
View
B+
Retailer 9
-
$12,546 AUD
View
B+
Retailer 10
-
$12,939 AUD
View
B+
Retailer 11
-
$13,138 AUD
View
B+
Retailer 12
-
$13,221 AUD
View
B+
Retailer 13
-
$13,340 AUD
View
B+
Retailer 14
-
$14,929 AUD
View
B
Retailer 15
-
$17,981 AUD
View
Most Expensive
B
NZ Jewellers
5e8ed6f3-582f-4b80-b5a8-1a081906faf4 · Nov 5
$21,640 AUD
$14,869 USD
View
15 more retailers have this diamond
Prices start from $9,718 AUDSave up to $11,923 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
$9,718 AUD