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Marquise|Natural|GIA

1.50ct K SI2 Marquise Natural Diamond

VG • K/SI2 • GIA 6525274587

Certificate GIA 6525274587

Diamond specifications and retailer prices

From $7,782 AUD
As of November 5, 2026
Save $7,600 AUD (49%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $15,382 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 6525274587. Listed at 12 retailers as of November 5, 2026, with prices from $7,782 to $15,382, a $7,600 spread on the same certified stone. NZ Jewellers lists it at $15,382. 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
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6525274587
Dimensions10.93 × 6.14 × 3.83 mm
L/W Ratio1.78
Key to symbols
Twinning Wisp, Feather, Crystal, Indented Natural, Needle
Top View
10.93 mm6.14 mm1.50 ctK / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6525274587
Side View
Table 61.0%CrownGirdle: THK-VTKPavilionCulet: NDepth 62.4%

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 5
Current: $15,382 AUD|Low: $7,782 AUD|High: $15,382 AUD|Avg: $9,681 AUD
NZ Jewellers
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 4$7,782 AUD
Retailer 10$7,939 AUD
Retailer 11$8,022 AUD
Retailer 5$8,737 AUD
Retailer 2$8,945 AUD
Retailer 3$9,197 AUD
Retailer 8$9,197 AUD
Retailer 12$9,427 AUD
Retailer 7$10,007 AUD
Retailer 9$10,613 AUD
Retailer 6$13,189 AUD
NZ Jewellers$15,382 AUD

7 data points across 12 retailers

12 retailers$7,782 AUD to $15,382 AUD

B+
Cheapest Retailer
-
$7,782 AUD
B+
Retailer 2
-
$7,939 AUD
View
B+
Retailer 3
-
$8,022 AUD
View
B+
Retailer 4
-
$8,737 AUD
View
B+
Retailer 5
-
$8,945 AUD
View
B
Retailer 6
-
$9,197 AUD
View
B
Retailer 7
-
$9,197 AUD
View
B
Retailer 8
-
$9,427 AUD
View
B
Retailer 9
-
$10,007 AUD
View
B
Retailer 10
-
$10,613 AUD
View
B
Retailer 11
-
$13,189 AUD
View
Most Expensive
C
NZ Jewellers
4a6b88fa-444f-4afb-a47e-11cf98477f40 · Nov 5
$15,382 AUD
$10,569 USD
View
11 more retailers have this diamond
Prices start from $7,782 AUDSave up to $7,600 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
$7,782 AUD