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Marquise|Natural|GIA

1.50ct D SI2 Marquise Natural Diamond

GD • D/SI2 • GIA 5556478233

Certificate GIA 5556478233

Diamond specifications and retailer prices

From $13,275 AUD
As of November 6, 2026
Save $10,739 AUD (45%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $24,014 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 D colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 5556478233. Listed at 15 retailers as of November 5, 2026, with prices from $13,275 to $24,014, a $10,739 spread on the same certified stone. NZ Jewellers lists it at $24,014. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.50
Carat
D
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5556478233
Dimensions11.25 × 5.99 × 3.81 mm
L/W Ratio1.88
Culet sizeNone
Top View
11.25 mm5.99 mm1.50 ctD / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateGIA 5556478233
Side View
Table 62.0%CrownGirdle: MED-VTKPavilionCulet: NDepth 63.6%

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: $16,146 AUD|Low: $13,275 AUD|High: $22,773 AUD|Avg: $17,187 AUD|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 5$13,275 AUD
Retailer 8$14,408 AUD
Retailer 2$15,625 AUD
Retailer 7$15,849 AUD
Retailer 1$16,146 AUD
Retailer 6$17,830 AUD
Retailer 4$18,079 AUD
Retailer 3$22,442 AUD

41 data points across 8 retailers

15 retailers$13,275 AUD to $24,014 AUD

B+
Cheapest Retailer
-
$13,275 AUD
B+
Retailer 2
-
$13,368 AUD
View
Retailer 3
-
$14,408 AUD
View
Price last confirmed 21 days ago
B+
Retailer 4
-
$15,366 AUD
View
B+
Retailer 5
-
$15,609 AUD
View
B+
Retailer 6
-
$15,625 AUD
View
B+
Retailer 7
-
$15,849 AUD
View
B+
Retailer 8
-
$16,146 AUD
View
B
Retailer 9
-
$17,830 AUD
View
Retailer 10
-
$18,011 AUD
View
Price last confirmed 61 days ago
B
Retailer 11
-
$18,011 AUD
View
B
Retailer 12
-
$18,079 AUD
View
Retailer 13
-
$18,958 AUD
View
Price last confirmed 14 days ago
B
Retailer 14
-
$22,442 AUD
View
Most Expensive
C
NZ Jewellers
89419e53-7d15-4e45-adab-21ed8ea5dcba · Nov 5
$24,014 AUD
$16,500 USD
View
14 more retailers have this diamond
Prices start from $13,275 AUDSave up to $10,739 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
$13,275 AUD