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Marquise|Natural|GIA

0.50ct H SI1 Marquise Natural Diamond

VG • H/SI1 • GIA 6551995451

Certificate GIA 6551995451

Diamond specifications and retailer prices

From $726 AUD
As of November 6, 2026
Save $2,000 AUD (73%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $2,726 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.5ct natural marquise diamond

This 0.5ct natural marquise sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6551995451. Listed at 19 retailers as of November 5, 2026, with prices from $726 to $2,726, a $2,000 spread on the same certified stone. NZ Jewellers lists it at $2,726. 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

0.50
Carat
H
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryGood
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 6551995451
Dimensions7.36 × 4.39 × 2.48 mm
L/W Ratio1.68
Key to symbols
Twinning Wisp, Crystal, Feather
Top View
7.36 mm4.39 mm0.50 ctH / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceStrong
CertificateGIA 6551995451
Side View
Table 61.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 56.6%

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: $2,726 AUD|Low: $726 AUD|High: $2,837 AUD|Avg: $1,189 AUD|-3.9%
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
Retailer 17
Retailer 18
November 6, 2026
Retailer 4$726 AUD
Retailer 5$802 AUD
Retailer 13$869 AUD
Retailer 8$888 AUD
Retailer 9$904 AUD
Retailer 3$936 AUD
Retailer 15$936 AUD
Retailer 10$1,003 AUD
Retailer 18$1,003 AUD
Retailer 12$1,057 AUD
Retailer 6$1,060 AUD
Retailer 2$1,061 AUD
Retailer 17$1,089 AUD
Retailer 7$1,150 AUD
Retailer 11$1,278 AUD
Retailer 14$1,342 AUD
Retailer 16$2,017 AUD
NZ Jewellers$2,726 AUD

26 data points across 18 retailers

19 retailers$726 AUD to $2,726 AUD

A
Cheapest Retailer
-
$726 AUD
B+
Retailer 2
-
$802 AUD
View
Final sale: no returns
B+
Retailer 3
-
$869 AUD
View
B+
Retailer 4
-
$888 AUD
View
Retailer 5
-
$904 AUD
View
Price last confirmed 11 days ago
B+
Retailer 6
-
$936 AUD
View
Retailer 7
-
$936 AUD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
$1,003 AUD
View
Retailer 9
-
$1,003 AUD
View
Price last confirmed 20 days ago
B+
Retailer 10
-
$1,057 AUD
View
B+
Retailer 11
-
$1,060 AUD
View
B+
Retailer 12
-
$1,061 AUD
View
B
Retailer 13
-
$1,089 AUD
View
B
Retailer 14
-
$1,150 AUD
View
B
Retailer 15
-
$1,278 AUD
View
B
Retailer 16
-
$1,342 AUD
View
Retailer 17
-
$1,359 AUD
View
Price last confirmed 34 days ago
Retailer 18
-
$2,017 AUD
View
Price last confirmed 9 days ago
Most Expensive
C
NZ Jewellers
a37c93f1-97a8-4566-98a8-e8a598bbe4cb · Nov 5
$2,726 AUD
$1,873 USD
View
18 more retailers have this diamond
Prices start from $726 AUDSave up to $2,000 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
0.50ct Marquise
$726 AUD