Marquise|Natural|GIA

1.50ct H SI2 Marquise Natural Diamond

VG • H/SI2 • GIA 6555439842

Certificate GIA 6555439842

Diamond specifications and retailer prices

From $12,419 AUD
As of November 6, 2026
15 retailers carry this diamond
Most expensive: $23,773 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 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 6555439842. Listed at 15 retailers as of November 6, 2026. 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
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555439842
Dimensions11.38 × 6.00 × 3.69 mm
L/W Ratio1.90
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Indented Natural, Needle
Top View
11.38 mm6.00 mm1.50 ctH / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6555439842
Side View
Table 60.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 61.6%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 6
Current: $11,033 AUD|Low: $9,422 AUD|High: $20,047 AUD|Avg: $12,693 AUD|+17.1%
Retailer 1
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
October 30, 2026
Retailer 12$10,370 AUD
Retailer 13$10,795 AUD
Retailer 2$10,867 AUD
Retailer 1$11,033 AUD
Retailer 14$11,172 AUD
Retailer 3$11,605 AUD
Retailer 15$12,368 AUD
Retailer 7$12,419 AUD
Retailer 4$12,825 AUD
Retailer 11$12,873 AUD
Retailer 5$13,061 AUD
Retailer 8$13,110 AUD
Retailer 6$14,059 AUD
Retailer 9$14,311 AUD
Retailer 10$19,444 AUD

24 data points across 15 retailers

15 retailers

Retailer 1
-
$10,370 AUD
Price last confirmed 8 days ago
Retailer 2
-
$10,833 AUD
View
Price last confirmed 8 days ago
Retailer 3
-
$10,867 AUD
View
Price last confirmed 17 days ago
Retailer 4
-
$11,033 AUD
View
Price last confirmed 7 days ago
Retailer 5
-
$11,172 AUD
View
Price last confirmed 20 days ago
Retailer 6
-
$12,368 AUD
View
Price last confirmed 19 days ago
B
Retailer 7
-
$12,419 AUD
View
Retailer 8
-
$12,873 AUD
View
Price last confirmed 18 days ago
Retailer 9
-
$12,877 AUD
View
Price last confirmed 45 days ago
Retailer 10
-
$13,061 AUD
View
Price last confirmed 22 days ago
Retailer 11
-
$13,110 AUD
View
Price last confirmed 18 days ago
Retailer 12
-
$14,059 AUD
View
Price last confirmed 21 days ago
Retailer 13
-
$14,858 AUD
View
Price last confirmed 43 days ago
Retailer 14
-
$19,444 AUD
View
Price last confirmed 18 days ago
Most Expensive
NZ Jewellers
33dad57a-1a7c-4ea7-9649-be6074ff2cb3 · Sep 21
$23,773 AUD
$16,334 USD
View
Price last confirmed 46 days ago
14 more retailers have this diamond
Prices start from $12,419 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
$12,419 AUD