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Marquise|Natural|GIA

0.50ct H SI2 Marquise Natural Diamond

GD • H/SI2 • GIA 6555434983

Certificate GIA 6555434983

Diamond specifications and retailer prices

From $919 AUD
$644 USD
As of November 2, 2026
Save $1,093 AUD (54%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,445 AUD at NZ Jewellers · As of October 30, 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 SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6555434983. Listed at 17 retailers as of November 2, 2026, with a 119% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555434983
Dimensions4.22 × 8.02 × 2.58 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Indented Natural, Feather
Top View
4.22 mm8.02 mm0.50 ctH / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6555434983
Side View
Table 61.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 61.1%

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 2
Current: $3,445 AUD|Low: $731 AUD|High: $3,445 AUD|Avg: $1,416 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
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 2, 2026
Retailer 10$731 AUD
Retailer 14$919 AUD
Retailer 12$935 AUD
Retailer 13$976 AUD
Retailer 16$995 AUD
Retailer 17$995 AUD
Retailer 18$1,016 AUD
Retailer 15$1,033 AUD
Retailer 3$1,149 AUD
Retailer 4$1,224 AUD
Retailer 7$1,256 AUD
Retailer 9$1,256 AUD
Retailer 8$1,298 AUD
Retailer 11$1,309 AUD
Retailer 6$1,420 AUD
Retailer 2$2,012 AUD
Retailer 5$3,171 AUD
NZ Jewellers$3,445 AUD

41 data points across 18 retailers

17 retailers$919 AUD to $2,012 AUD

Retailer 1
-
$731 AUD
HK$4,000 HKD
Price last confirmed 59 days ago
B+
Retailer 2
-
$919 AUD
$644 USD
View
Final sale: no returns
B+
Retailer 3
-
$935 AUD
$655 USD
View
B+
Retailer 4
-
$976 AUD
$684 USD
View
B+
Retailer 5
-
$995 AUD
$697 USD
View
B+
Retailer 6
-
$995 AUD
$697 USD
View
B+
Retailer 7
-
$1,016 AUD
$712 USD
View
B
Retailer 8
-
$1,033 AUD
$724 USD
View
B
Retailer 9
-
$1,149 AUD
$805 USD
View
B
Retailer 10
-
$1,224 AUD
$858 USD
View
B
Retailer 11
-
$1,256 AUD
$880 USD
View
B
Retailer 12
-
$1,256 AUD
$880 USD
View
B
Retailer 13
-
$1,298 AUD
$910 USD
View
B
Retailer 14
-
$1,309 AUD
£722 GBP
View
B
Retailer 15
-
$2,012 AUD
£1,110 GBP
View
Retailer 16
-
$3,171 AUD
CA$3,087 CAD
View
Price under review
Most Expensive
NZ Jewellers
2a181607-2a9f-47bb-a3c0-ec13e21fe2e7 · Oct 30
$3,445 AUD
$2,414 USD
View
Price under review
16 more retailers have this diamond
Prices start from $919 AUDSave up to $1,093 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+
0.50ct Marquise
$919 AUD