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Marquise|Natural|GIA

1.50ct H SI2 Marquise Natural Diamond

VG • H/SI2 • GIA 6545793758

Certificate GIA 6545793758

Diamond specifications and retailer prices

From $10,333 AUD
As of November 4, 2026
Save $11,738 AUD (53%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $22,071 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6545793758. Listed at 13 retailers as of November 4, 2026, with prices from $10,333 to $22,071, a $11,738 spread on the same certified stone. NZ Jewellers lists it at $22,071. 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
H
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceVery Strong
OriginNatural
Grading LabGIA
CertificateGIA 6545793758
Dimensions10.79 × 5.82 × 3.83 mm
L/W Ratio1.85
Top View
10.79 mm5.82 mm1.50 ctH / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceVery Strong
CertificateGIA 6545793758
Side View
Table 56.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 65.8%

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: $12,186 AUD|Low: $9,197 AUD|High: $18,612 AUD|Avg: $13,348 AUD|-0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 6$11,035 AUD
Retailer 4$11,036 AUD
Retailer 5$12,139 AUD
Retailer 1$12,186 AUD
Retailer 3$14,358 AUD
Retailer 7$14,531 AUD
Retailer 2$18,341 AUD

43 data points across 7 retailers

13 retailers$10,333 AUD to $22,071 AUD

B+
Cheapest Retailer
-
$10,333 AUD
Retailer 2
-
$11,035 AUD
View
Price last confirmed 8 days ago
B+
Retailer 3
-
$11,036 AUD
View
Final sale: no returns
B+
Retailer 4
-
$11,431 AUD
View
B
Retailer 5
-
$11,955 AUD
View
B
Retailer 6
-
$12,139 AUD
View
B+
Retailer 7
-
$12,186 AUD
View
B
Retailer 8
-
$13,794 AUD
View
B
Retailer 9
-
$14,292 AUD
View
B
Retailer 10
-
$14,358 AUD
View
Retailer 11
-
$14,531 AUD
View
Price last confirmed 14 days ago
B
Retailer 12
-
$18,341 AUD
View
Most Expensive
C
NZ Jewellers
b6f4c668-9421-4f4b-ba58-dd9c87a703e4 · Nov 5
$22,071 AUD
$15,165 USD
View
12 more retailers have this diamond
Prices start from $10,333 AUDSave up to $11,738 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
$10,333 AUD