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Marquise|Natural|GIA

1.50ct D SI2 Marquise Natural Diamond

EX • D/SI2 • GIA 1558938398

Certificate GIA 1558938398

Diamond specifications and retailer prices

From $14,772 AUD
As of November 4, 2026
Save $480 AUD (3%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $21,189 AUD at NZ Jewellers · As of September 29, 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1558938398. Listed at 16 retailers as of November 4, 2026, with a relatively tight 3% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1558938398
Dimensions11.32 × 5.96 × 3.72 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle, Pinpoint, Natural
Top View
11.32 mm5.96 mm1.50 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1558938398
Side View
Table 63.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 62.5%

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: $14,772 AUD|Low: $9,761 AUD|High: $20,095 AUD|Avg: $13,687 AUD|-4.2%
Retailer 1
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
Retailer 17
Retailer 18
November 2, 2026
Retailer 8$9,761 AUD
Retailer 7$10,493 AUD
Retailer 14$11,236 AUD
Retailer 9$11,461 AUD
Retailer 16$11,902 AUD
Retailer 3$12,713 AUD
Retailer 5$12,713 AUD
Retailer 4$12,819 AUD
Retailer 2$13,551 AUD
Retailer 13$14,024 AUD
Retailer 17$14,472 AUD
Retailer 1$14,772 AUD
Retailer 12$14,772 AUD
Retailer 11$15,253 AUD
Retailer 18$15,948 AUD
Retailer 6$16,734 AUD
Retailer 10$17,124 AUD
Retailer 15$19,962 AUD

22 data points across 18 retailers

16 retailers$14,772 AUD to $15,253 AUD

Retailer 1
-
$9,761 AUD
Price last confirmed 50 days ago
Retailer 2
-
$11,236 AUD
View
Price last confirmed 16 days ago
Retailer 3
-
$11,902 AUD
View
Price last confirmed 14 days ago
Retailer 4
-
$12,819 AUD
View
Price last confirmed 15 days ago
Retailer 5
-
$13,551 AUD
View
Price last confirmed 23 days ago
Retailer 6
-
$13,772 AUD
View
Price last confirmed 36 days ago
Retailer 7
-
$13,985 AUD
View
Price last confirmed 36 days ago
Retailer 8
-
$14,024 AUD
View
Price last confirmed 14 days ago
B+
Retailer 9
-
$14,772 AUD
View
B+
Retailer 10
-
$14,772 AUD
View
Retailer 11
-
$15,094 AUD
View
Price last confirmed 52 days ago
B+
Retailer 12
-
$15,253 AUD
View
Retailer 13
-
$15,892 AUD
View
Price last confirmed 38 days ago
Retailer 14
-
$16,734 AUD
View
Price last confirmed 23 days ago
Retailer 15
-
$19,962 AUD
View
Price last confirmed 16 days ago
Most Expensive
NZ Jewellers
d667a10a-dde7-4e8e-b8fc-388109071076 · Sep 29
$21,189 AUD
$14,559 USD
View
Price last confirmed 38 days ago
15 more retailers have this diamond
Prices start from $14,772 AUDSave up to $480 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
$14,772 AUD