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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 $831 SGD
$650 USD
As of November 1, 2026
Save $876 SGD (51%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $2,924 SGD 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $2,924 SGD|Low: $831 SGD|High: $2,975 SGD|Avg: $1,300 SGD|-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$831 SGD
Retailer 13$932 SGD
Retailer 15$932 SGD
Retailer 3$934 SGD
Retailer 14$968 SGD
Retailer 6$1,074 SGD
Retailer 10$1,076 SGD
Retailer 5$1,102 SGD
Retailer 2$1,118 SGD
Retailer 8$1,144 SGD
Retailer 4$1,157 SGD
Retailer 11$1,323 SGD
Retailer 12$1,439 SGD
Retailer 9$1,707 SGD
NZ Jewellers$2,924 SGD

31 data points across 15 retailers

18 retailers$831 SGD to $1,707 SGD

A
Cheapest Retailer
-
$831 SGD
$650 USD
A
Retailer 2
-
$932 SGD
$729 USD
View
B+
Retailer 3
-
$932 SGD
$729 USD
View
A
Retailer 4
-
$934 SGD
$730 USD
View
B+
Retailer 5
-
$964 SGD
$754 USD
View
B+
Retailer 6
-
$968 SGD
$757 USD
View
B+
Retailer 7
-
$1,074 SGD
$840 USD
View
B+
Retailer 8
-
$1,076 SGD
$841 USD
View
B+
Retailer 9
-
$1,102 SGD
$861 USD
View
B+
Retailer 10
-
$1,118 SGD
£689 GBP
View
B+
Retailer 11
-
$1,144 SGD
£705 GBP
View
B+
Retailer 12
-
$1,157 SGD
$905 USD
View
Retailer 13
-
$1,184 SGD
£729 GBP
View
Price last confirmed 37 days ago
B
Retailer 14
-
$1,323 SGD
€985 EUR
View
Retailer 15
-
$1,426 SGD
A$1,716 AUD
View
Price last confirmed 30 days ago
B
Retailer 16
-
$1,439 SGD
ZAR 18,179 ZAR
View
B
Retailer 17
-
$1,707 SGD
£1,051 GBP
View
Most Expensive
NZ Jewellers
9439b9d0-7d62-4d11-90c4-dfe0089be64b · Nov 3
$2,924 SGD
$2,286 USD
View
Price under review
17 more retailers have this diamond
Prices start from $831 SGDSave up to $876 SGD

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
$831 SGD