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Marquise|Natural|GIA

0.50ct G SI1 Marquise Natural Diamond

ID • G/SI1 • GIA 2546697194

Certificate GIA 2546697194

Diamond specifications and retailer prices

From $1,239 AUD
$868 USD
As of November 2, 2026
Save $1,567 AUD (56%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $3,736 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 2546697194. Listed at 20 retailers as of November 2, 2026, with a 126% 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle33.5°
Pavilion angle35.9°
OriginNatural
Grading LabGIA
CertificateGIA 2546697194
Dimensions8.16 × 4.09 × 2.59 mm
L/W Ratio2.00
Top View
8.16 mm4.09 mm0.50 ctG / SI1
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2546697194
Side View
Table 56.0%Crown 33.5°Girdle: MED-VTKPavilion 35.9°Culet: NoneDepth 63.4%

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: $3,736 AUD|Low: $1,239 AUD|High: $3,736 AUD|Avg: $1,828 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
November 3, 2026
Retailer 9$1,239 AUD
Retailer 12$1,394 AUD
Retailer 7$1,398 AUD
Retailer 13$1,413 AUD
Retailer 4$1,467 AUD
Retailer 3$1,532 AUD
Retailer 16$1,532 AUD
Retailer 15$1,591 AUD
Retailer 6$1,723 AUD
Retailer 8$1,727 AUD
Retailer 17$1,768 AUD
Retailer 2$1,792 AUD
Retailer 5$1,944 AUD
Retailer 14$2,003 AUD
Retailer 11$2,365 AUD
Retailer 10$2,805 AUD
NZ Jewellers$3,736 AUD

45 data points across 17 retailers

20 retailers$1,239 AUD to $2,805 AUD

B+
Cheapest Retailer
-
$1,239 AUD
$868 USD
B+
Retailer 2
-
$1,394 AUD
SGD 1,320 SGD
View
B
Retailer 3
-
$1,398 AUD
$980 USD
View
B
Retailer 4
-
$1,413 AUD
$990 USD
View
Final sale: no returns
B+
Retailer 5
-
$1,467 AUD
$1,028 USD
View
B
Retailer 6
-
$1,532 AUD
$1,074 USD
View
Retailer 7
-
$1,532 AUD
$1,074 USD
View
Price last confirmed 35 days ago
B
Retailer 8
-
$1,532 AUD
$1,074 USD
View
B
Retailer 9
-
$1,591 AUD
$1,115 USD
View
B
Retailer 10
-
$1,723 AUD
$1,207 USD
View
B
Retailer 11
-
$1,727 AUD
$1,210 USD
View
B
Retailer 12
-
$1,768 AUD
$1,239 USD
View
Retailer 13
-
$1,768 AUD
$1,239 USD
View
Price last confirmed 35 days ago
B
Retailer 14
-
$1,792 AUD
£989 GBP
View
B
Retailer 15
-
$1,944 AUD
$1,362 USD
View
Retailer 16
-
$2,003 AUD
View
Price last confirmed 30 days ago
B
Retailer 17
-
$2,365 AUD
ZAR 26,772 ZAR
View
B
Retailer 18
-
$2,805 AUD
£1,548 GBP
View
Retailer 19
-
$3,736 AUD
$2,618 USD
View
Price under review
Most Expensive
NZ Jewellers
4f4d8d87-1edb-4f18-9494-850b760bb054 · Nov 3
$3,736 AUD
$2,618 USD
View
Price under review
19 more retailers have this diamond
Prices start from $1,239 AUDSave up to $1,567 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
$1,239 AUD