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Marquise|Natural|GIA

0.50ct G SI1 Marquise Natural Diamond

EX • G/SI1 • GIA 1568001181

Certificate GIA 1568001181

Diamond specifications and retailer prices

From $840 AUD
HK$4,600 HKD
As of November 1, 2026
Save $1,470 AUD (64%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $3,119 AUD at NZ Jewellers · As of November 3, 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 G 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 1568001181. Listed at 19 retailers as of October 29, 2026, with a 175% 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1568001181
Dimensions8.58 × 3.78 × 2.45 mm
L/W Ratio2.27
Key to symbols
Twinning Wisp, Feather
Top View
8.58 mm3.78 mm0.50 ctG / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 1568001181
Side View
Table 60.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 64.9%

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 1
Current: $3,119 AUD|Low: $804 AUD|High: $3,119 AUD|Avg: $1,287 AUD|+3.8%
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
November 3, 2026
Retailer 4$840 AUD
Retailer 6$917 AUD
Retailer 15$995 AUD
Retailer 17$995 AUD
Retailer 3$999 AUD
Retailer 16$1,033 AUD
Retailer 8$1,034 AUD
Retailer 9$1,147 AUD
Retailer 14$1,147 AUD
Retailer 7$1,160 AUD
Retailer 10$1,221 AUD
Retailer 2$1,228 AUD
Retailer 5$1,249 AUD
Retailer 11$1,414 AUD
Retailer 12$1,535 AUD
Retailer 13$2,311 AUD
NZ Jewellers$3,119 AUD

28 data points across 17 retailers

19 retailers$840 AUD to $2,311 AUD

A
Cheapest Retailer
-
$840 AUD
HK$4,600 HKD
A
Retailer 2
-
$917 AUD
$643 USD
View
Final sale: no returns
A
Retailer 3
-
$995 AUD
$697 USD
View
A
Retailer 4
-
$995 AUD
$697 USD
View
A
Retailer 5
-
$999 AUD
$700 USD
View
B+
Retailer 6
-
$1,033 AUD
$724 USD
View
B+
Retailer 7
-
$1,034 AUD
SGD 979 SGD
View
Price last confirmed 7 days ago
Retailer 8
-
$1,147 AUD
$804 USD
View
Price last confirmed 15 days ago
B+
Retailer 9
-
$1,147 AUD
$804 USD
View
B+
Retailer 10
-
$1,160 AUD
$813 USD
View
B+
Retailer 11
-
$1,221 AUD
£674 GBP
View
B+
Retailer 12
-
$1,228 AUD
£678 GBP
View
B+
Retailer 13
-
$1,249 AUD
$875 USD
View
Retailer 14
-
$1,334 AUD
£736 GBP
View
Price last confirmed 40 days ago
B+
Retailer 15
-
$1,414 AUD
€944 EUR
View
B
Retailer 16
-
$1,535 AUD
ZAR 17,384 ZAR
View
Retailer 17
-
$1,551 AUD
View
Price last confirmed 30 days ago
B
Retailer 18
-
$2,311 AUD
£1,275 GBP
View
Most Expensive
NZ Jewellers
94121af3-7a34-4753-ae90-d186f36a342f · Nov 3
$3,119 AUD
$2,186 USD
View
Price under review
18 more retailers have this diamond
Prices start from $840 AUDSave up to $1,470 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
$840 AUD