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Marquise|Natural|GIA

0.50ct H SI1 Marquise Natural Diamond

EX • H/SI1 • GIA 6562499780

Certificate GIA 6562499780

Diamond specifications and retailer prices

From $835 AUD
As of November 6, 2026
Save $1,237 AUD (60%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,554 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6562499780. Listed at 18 retailers as of November 4, 2026, with a 148% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.50
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6562499780
Dimensions8.10 × 4.22 × 2.64 mm
L/W Ratio1.92
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Cloud
Top View
8.10 mm4.22 mm0.50 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6562499780
Side View
Table 59.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 62.7%

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: $3,554 AUD|Low: $835 AUD|High: $3,609 AUD|Avg: $1,443 AUD|-1.5%
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 2$835 AUD
Retailer 7$1,012 AUD
Retailer 6$1,048 AUD
Retailer 3$1,134 AUD
Retailer 17$1,134 AUD
Retailer 5$1,151 AUD
Retailer 18$1,177 AUD
Retailer 9$1,281 AUD
Retailer 10$1,308 AUD
Retailer 16$1,326 AUD
Retailer 13$1,340 AUD
Retailer 8$1,352 AUD
Retailer 4$1,383 AUD
Retailer 11$1,383 AUD
Retailer 12$1,463 AUD
Retailer 14$1,748 AUD
Retailer 15$2,072 AUD
NZ Jewellers$3,554 AUD

21 data points across 18 retailers

18 retailers$835 AUD to $2,072 AUD

A
Cheapest Retailer
-
$835 AUD
B+
Retailer 2
-
$1,012 AUD
View
B+
Retailer 3
-
$1,048 AUD
View
Retailer 4
-
$1,134 AUD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$1,134 AUD
View
B+
Retailer 6
-
$1,151 AUD
View
B+
Retailer 7
-
$1,177 AUD
View
B
Retailer 8
-
$1,281 AUD
View
B+
Retailer 9
-
$1,308 AUD
View
B+
Retailer 10
-
$1,326 AUD
View
B+
Retailer 11
-
$1,340 AUD
View
B+
Retailer 12
-
$1,352 AUD
View
B+
Retailer 13
-
$1,383 AUD
View
B+
Retailer 14
-
$1,383 AUD
View
B
Retailer 15
-
$1,463 AUD
View
B
Retailer 16
-
$1,748 AUD
View
B
Retailer 17
-
$2,072 AUD
View
Most Expensive
NZ Jewellers
84a52555-a39d-4d83-a36b-e799c92ae233 · Nov 5
$3,554 AUD
$2,442 USD
View
Price under review
17 more retailers have this diamond
Prices start from $835 AUDSave up to $1,237 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
$835 AUD