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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 $1,155 NZD
$650 USD
As of November 1, 2026
Save $1,217 NZD (51%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $4,063 NZD 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: $4,063 NZD|Low: $1,155 NZD|High: $4,134 NZD|Avg: $1,806 NZD|-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$1,155 NZD
Retailer 13$1,296 NZD
Retailer 15$1,296 NZD
Retailer 3$1,297 NZD
Retailer 14$1,345 NZD
Retailer 6$1,493 NZD
Retailer 10$1,495 NZD
Retailer 5$1,531 NZD
Retailer 2$1,554 NZD
Retailer 8$1,590 NZD
Retailer 4$1,608 NZD
Retailer 11$1,838 NZD
Retailer 12$2,000 NZD
Retailer 9$2,372 NZD
NZ Jewellers$4,063 NZD

31 data points across 15 retailers

18 retailers$1,155 NZD to $2,372 NZD

A
Cheapest Retailer
-
$1,155 NZD
$650 USD
A
Retailer 2
-
$1,296 NZD
$729 USD
View
B+
Retailer 3
-
$1,296 NZD
$729 USD
View
A
Retailer 4
-
$1,297 NZD
$730 USD
View
B+
Retailer 5
-
$1,340 NZD
$754 USD
View
B+
Retailer 6
-
$1,345 NZD
$757 USD
View
B+
Retailer 7
-
$1,493 NZD
$840 USD
View
B+
Retailer 8
-
$1,495 NZD
$841 USD
View
B+
Retailer 9
-
$1,531 NZD
$861 USD
View
B+
Retailer 10
-
$1,554 NZD
£689 GBP
View
B+
Retailer 11
-
$1,590 NZD
£705 GBP
View
B+
Retailer 12
-
$1,608 NZD
$905 USD
View
Retailer 13
-
$1,646 NZD
£729 GBP
View
Price last confirmed 37 days ago
B
Retailer 14
-
$1,838 NZD
€985 EUR
View
Retailer 15
-
$1,982 NZD
A$1,716 AUD
View
Price last confirmed 30 days ago
B
Retailer 16
-
$2,000 NZD
ZAR 18,179 ZAR
View
B
Retailer 17
-
$2,372 NZD
£1,051 GBP
View
Most Expensive
NZ Jewellers
9439b9d0-7d62-4d11-90c4-dfe0089be64b · Nov 3
$4,063 NZD
$2,286 USD
View
Price under review
17 more retailers have this diamond
Prices start from $1,155 NZDSave up to $1,217 NZD

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
$1,155 NZD