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Marquise|Natural|GIA

0.50ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 6565342064

Certificate GIA 6565342064

Diamond specifications and retailer prices

From $571 AUD
As of November 6, 2026
Save $1,880 AUD (77%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $2,451 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 I 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 6565342064. Listed at 18 retailers as of November 5, 2026, with prices from $571 to $2,451, a $1,880 spread on the same certified stone. NZ Jewellers lists it at $2,451. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6565342064
Dimensions7.96 × 4.08 × 2.47 mm
L/W Ratio1.95
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
7.96 mm4.08 mm0.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6565342064
Side View
Table 62.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 60.5%

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: $2,451 AUD|Low: $571 AUD|High: $2,451 AUD|Avg: $1,104 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 6, 2026
Retailer 12$571 AUD
Retailer 3$782 AUD
Retailer 8$800 AUD
Retailer 7$841 AUD
Retailer 14$841 AUD
Retailer 2$863 AUD
Retailer 11$885 AUD
Retailer 17$902 AUD
Retailer 16$956 AUD
Retailer 9$958 AUD
Retailer 4$972 AUD
Retailer 13$975 AUD
Retailer 6$1,070 AUD
Retailer 5$1,166 AUD
Retailer 15$1,205 AUD
Retailer 10$1,288 AUD
Retailer 18$1,802 AUD
NZ Jewellers$2,451 AUD

30 data points across 18 retailers

18 retailers$571 AUD to $2,451 AUD

A
Cheapest Retailer
-
$571 AUD
A
Retailer 2
-
$782 AUD
View
A
Retailer 3
-
$800 AUD
View
A
Retailer 4
-
$841 AUD
View
Retailer 5
-
$841 AUD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$863 AUD
View
Final sale: no returns
B+
Retailer 7
-
$885 AUD
View
A
Retailer 8
-
$902 AUD
View
B+
Retailer 9
-
$956 AUD
View
B+
Retailer 10
-
$958 AUD
View
B+
Retailer 11
-
$972 AUD
View
B+
Retailer 12
-
$975 AUD
View
B+
Retailer 13
-
$1,070 AUD
View
B+
Retailer 14
-
$1,166 AUD
View
B
Retailer 15
-
$1,205 AUD
View
Retailer 16
-
$1,288 AUD
View
Price last confirmed 22 days ago
B
Retailer 17
-
$1,802 AUD
View
Most Expensive
B
NZ Jewellers
d0785638-7558-4dea-94ff-7bca7e12f6e5 · Nov 5
$2,451 AUD
$1,684 USD
View
17 more retailers have this diamond
Prices start from $571 AUDSave up to $1,880 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
$571 AUD