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Marquise|Natural|GIA

1.50ct H SI2 Marquise Natural Diamond

EX • H/SI2 • GIA 6542779839

Certificate GIA 6542779839

Diamond specifications and retailer prices

From $11,652 AUD
As of November 4, 2026
Save $9,092 AUD (44%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $20,744 AUD at NZ Jewellers · As of November 3, 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 H 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 6542779839. Listed at 12 retailers as of November 3, 2026, with prices from $11,652 to $20,744, a $9,092 spread on the same certified stone. NZ Jewellers lists it at $20,744. 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
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6542779839
Dimensions11.57 × 6.05 × 3.80 mm
L/W Ratio1.91
Top View
11.57 mm6.05 mm1.50 ctH / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6542779839
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 62.9%

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 4
Current: $20,744 AUD|Low: $11,652 AUD|High: $20,744 AUD|Avg: $15,106 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 4, 2026
Retailer 6$11,652 AUD
Retailer 7$12,447 AUD
Retailer 8$12,550 AUD
Retailer 2$13,470 AUD
Retailer 10$13,483 AUD
Retailer 9$13,691 AUD
Retailer 5$14,417 AUD
Retailer 3$15,437 AUD
Retailer 4$19,437 AUD
NZ Jewellers$20,744 AUD

41 data points across 10 retailers

12 retailers$11,652 AUD to $20,744 AUD

B+
Cheapest Retailer
-
$11,652 AUD
Retailer 2
-
$12,447 AUD
View
Price last confirmed 8 days ago
B+
Retailer 3
-
$12,550 AUD
View
B
Retailer 4
-
$13,470 AUD
View
B
Retailer 5
-
$13,483 AUD
View
B
Retailer 6
-
$13,691 AUD
View
B+
Retailer 7
-
$14,417 AUD
View
B
Retailer 8
-
$15,437 AUD
View
B
Retailer 9
-
$15,558 AUD
View
Retailer 10
-
$16,385 AUD
View
Price last confirmed 14 days ago
B
Retailer 11
-
$19,437 AUD
View
Most Expensive
B
NZ Jewellers
5183cebd-654d-4983-a2f3-66736426ba3f · Nov 3
$20,744 AUD
$14,253 USD
View
11 more retailers have this diamond
Prices start from $11,652 AUDSave up to $9,092 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
$11,652 AUD