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Marquise|Natural|GIA

0.50ct G SI1 Marquise Natural Diamond

VG • G/SI1 • GIA 2517922011

Certificate GIA 2517922011

Diamond specifications and retailer prices

From $927 AUD
$650 USD
As of November 1, 2026
Save $977 AUD (51%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,262 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 2517922011. Listed at 18 retailers as of November 1, 2026, with a 105% 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
G
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2517922011
Dimensions7.92 × 4.11 × 2.63 mm
L/W Ratio1.93
Top View
7.92 mm4.11 mm0.50 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2517922011
Side View
Table 61.0%CrownGirdle: ThickPavilionCulet: NoneDepth 63.9%

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: $3,262 AUD|Low: $927 AUD|High: $3,319 AUD|Avg: $1,450 AUD|-1.7%
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
November 3, 2026
Retailer 7$927 AUD
Retailer 13$1,040 AUD
Retailer 15$1,040 AUD
Retailer 3$1,042 AUD
Retailer 14$1,080 AUD
Retailer 6$1,199 AUD
Retailer 10$1,200 AUD
Retailer 5$1,229 AUD
Retailer 2$1,248 AUD
Retailer 8$1,277 AUD
Retailer 4$1,291 AUD
Retailer 11$1,476 AUD
Retailer 12$1,606 AUD
Retailer 9$1,905 AUD
NZ Jewellers$3,262 AUD

31 data points across 15 retailers

18 retailers$927 AUD to $1,905 AUD

A
Cheapest Retailer
-
$927 AUD
$650 USD
A
Retailer 2
-
$1,040 AUD
$729 USD
View
B+
Retailer 3
-
$1,040 AUD
$729 USD
View
A
Retailer 4
-
$1,042 AUD
$730 USD
View
B+
Retailer 5
-
$1,076 AUD
$754 USD
View
B+
Retailer 6
-
$1,080 AUD
$757 USD
View
B+
Retailer 7
-
$1,199 AUD
$840 USD
View
B+
Retailer 8
-
$1,200 AUD
$841 USD
View
B+
Retailer 9
-
$1,229 AUD
$861 USD
View
B+
Retailer 10
-
$1,248 AUD
£689 GBP
View
B+
Retailer 11
-
$1,277 AUD
£705 GBP
View
B+
Retailer 12
-
$1,291 AUD
$905 USD
View
Retailer 13
-
$1,322 AUD
£729 GBP
View
Price last confirmed 37 days ago
B
Retailer 14
-
$1,476 AUD
€985 EUR
View
Retailer 15
-
$1,591 AUD
View
Price last confirmed 30 days ago
B
Retailer 16
-
$1,606 AUD
ZAR 18,179 ZAR
View
B
Retailer 17
-
$1,905 AUD
£1,051 GBP
View
Most Expensive
NZ Jewellers
9439b9d0-7d62-4d11-90c4-dfe0089be64b · Nov 3
$3,262 AUD
$2,286 USD
View
Price under review
17 more retailers have this diamond
Prices start from $927 AUDSave up to $977 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
$927 AUD