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Marquise|Natural|GIA

1.50ct J SI1 Marquise Natural Diamond

GD • J/SI1 • GIA 6545615648

Certificate GIA 6545615648

Diamond specifications and retailer prices

From $8,417 AUD
As of November 5, 2026
Save $9,399 AUD (53%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $17,816 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6545615648. Listed at 17 retailers as of November 5, 2026, with prices from $8,417 to $17,816, a $9,399 spread on the same certified stone. NZ Jewellers lists it at $17,816. 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
J
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle44.06°
Pavilion angle39.52°
OriginNatural
Grading LabGIA
CertificateGIA 6545615648
Dimensions10.49 × 5.73 × 3.82 mm
L/W Ratio1.83
Top View
10.49 mm5.73 mm1.50 ctJ / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6545615648
Side View
Table 60.0%Crown 44.06°Girdle: THN-VTKPavilion 39.52°Culet: NoneDepth 66.7%

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: $17,816 AUD|Low: $8,417 AUD|High: $18,610 AUD|Avg: $11,891 AUD|-4.3%
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
Retailer 16
November 6, 2026
Retailer 4$8,417 AUD
Retailer 3$8,543 AUD
Retailer 6$9,651 AUD
Retailer 13$9,799 AUD
Retailer 10$9,945 AUD
Retailer 9$10,194 AUD
Retailer 2$10,454 AUD
Retailer 8$10,728 AUD
Retailer 15$11,135 AUD
Retailer 7$11,236 AUD
Retailer 14$11,236 AUD
Retailer 5$11,591 AUD
Retailer 16$11,614 AUD
Retailer 11$12,997 AUD
Retailer 12$14,804 AUD
NZ Jewellers$17,816 AUD

34 data points across 16 retailers

17 retailers$8,417 AUD to $17,816 AUD

B+
Cheapest Retailer
-
$8,417 AUD
B+
Retailer 2
-
$8,543 AUD
View
B
Retailer 3
-
$9,651 AUD
View
B
Retailer 4
-
$9,799 AUD
View
B
Retailer 5
-
$9,945 AUD
View
B
Retailer 6
-
$10,194 AUD
View
B
Retailer 7
-
$10,454 AUD
View
Retailer 8
-
$10,728 AUD
View
Price last confirmed 15 days ago
B
Retailer 9
-
$11,135 AUD
View
B
Retailer 10
-
$11,236 AUD
View
B
Retailer 11
-
$11,236 AUD
View
B
Retailer 12
-
$11,591 AUD
View
B
Retailer 13
-
$11,614 AUD
View
Retailer 14
-
$12,260 AUD
View
Price last confirmed 14 days ago
B
Retailer 15
-
$12,997 AUD
View
B
Retailer 16
-
$14,804 AUD
View
Most Expensive
C
NZ Jewellers
a7829865-7af9-4f60-8bc9-b66253d97315 · Nov 5
$17,816 AUD
$12,241 USD
View
16 more retailers have this diamond
Prices start from $8,417 AUDSave up to $9,399 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
$8,417 AUD