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Marquise|Natural|GIA

1.50ct K SI2 Marquise Natural Diamond

EX • K/SI2 • GIA 6562186581

Certificate GIA 6562186581

Diamond specifications and retailer prices

From $5,993 AUD
As of November 6, 2026
Save $6,634 AUD (53%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $12,627 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6562186581. Listed at 16 retailers as of November 5, 2026, with prices from $5,993 to $12,627, a $6,634 spread on the same certified stone. NZ Jewellers lists it at $12,627. 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
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6562186581
Dimensions11.72 × 5.84 × 3.64 mm
L/W Ratio2.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity, Needle, Indented Natural
Top View
11.72 mm5.84 mm1.50 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6562186581
Side View
Table 59.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 62.3%

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: $12,627 AUD|Low: $5,993 AUD|High: $12,627 AUD|Avg: $8,155 AUD|+2.5%
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
November 6, 2026
Retailer 2$5,993 AUD
Retailer 12$6,388 AUD
Retailer 7$6,469 AUD
Retailer 14$6,584 AUD
Retailer 6$7,342 AUD
Retailer 5$7,366 AUD
Retailer 11$7,417 AUD
Retailer 8$7,523 AUD
Retailer 3$7,549 AUD
Retailer 13$7,549 AUD
Retailer 9$7,770 AUD
Retailer 10$8,497 AUD
Retailer 4$8,711 AUD
Retailer 15$11,991 AUD
NZ Jewellers$12,627 AUD

24 data points across 15 retailers

16 retailers$5,993 AUD to $12,627 AUD

A
Cheapest Retailer
-
$5,993 AUD
B+
Retailer 2
-
$6,388 AUD
View
A
Retailer 3
-
$6,469 AUD
View
B+
Retailer 4
-
$6,584 AUD
View
B+
Retailer 5
-
$7,342 AUD
View
Retailer 6
-
$7,360 AUD
View
Price last confirmed 16 days ago
Retailer 7
-
$7,366 AUD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
$7,417 AUD
View
B+
Retailer 9
-
$7,523 AUD
View
B+
Retailer 10
-
$7,549 AUD
View
B+
Retailer 11
-
$7,549 AUD
View
B+
Retailer 12
-
$7,770 AUD
View
B+
Retailer 13
-
$8,497 AUD
View
B+
Retailer 14
-
$8,711 AUD
View
B
Retailer 15
-
$11,991 AUD
View
Most Expensive
B
NZ Jewellers
f3b04fbd-2acf-46ae-868e-8014543e23de · Nov 5
$12,627 AUD
$8,676 USD
View
15 more retailers have this diamond
Prices start from $5,993 AUDSave up to $6,634 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
$5,993 AUD