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Marquise|Natural|GIA

1.50ct K SI2 Marquise Natural Diamond

VG • K/SI2 • GIA 6552337301

Certificate GIA 6552337301

Diamond specifications and retailer prices

From $5,551 AUD
As of November 6, 2026
Save $6,513 AUD (54%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $13,064 AUD at NZ Jewellers · As of September 21, 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 6552337301. Listed at 13 retailers as of November 4, 2026, with a 117% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
K
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552337301
Dimensions10.92 × 5.89 × 3.87 mm
L/W Ratio1.85
Girdle conditionFaceted
Top View
10.92 mm5.89 mm1.50 ctK / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552337301
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 65.7%

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: $6,145 AUD|Low: $5,551 AUD|High: $12,457 AUD|Avg: $7,677 AUD|-4.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 6$5,551 AUD
Retailer 8$5,788 AUD
Retailer 12$6,065 AUD
Retailer 1$6,145 AUD
Retailer 10$6,305 AUD
Retailer 3$6,797 AUD
Retailer 2$6,846 AUD
Retailer 7$7,191 AUD
Retailer 4$7,452 AUD
Retailer 11$8,559 AUD
Retailer 5$11,239 AUD
Retailer 9$12,064 AUD

30 data points across 12 retailers

13 retailers$5,551 AUD to $12,064 AUD

A
Cheapest Retailer
-
$5,551 AUD
A
Retailer 2
-
$5,788 AUD
View
A
Retailer 3
-
$6,065 AUD
View
A
Retailer 4
-
$6,145 AUD
View
Final sale: no returns
A
Retailer 5
-
$6,305 AUD
View
Retailer 6
-
$6,797 AUD
View
Price last confirmed 32 days ago
B+
Retailer 7
-
$6,846 AUD
View
B+
Retailer 8
-
$7,191 AUD
View
B+
Retailer 9
-
$7,452 AUD
View
B+
Retailer 10
-
$8,559 AUD
View
B
Retailer 11
-
$11,239 AUD
View
B
Retailer 12
-
$12,064 AUD
View
Most Expensive
NZ Jewellers
c7e7ecf9-355c-4093-a613-f3c3ce4468b9 · Sep 21
$13,064 AUD
$8,976 USD
View
Price last confirmed 46 days ago
12 more retailers have this diamond
Prices start from $5,551 AUDSave up to $6,513 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
$5,551 AUD