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Marquise|Natural|GIA

0.50ct H SI2 Marquise Natural Diamond

EX • H/SI2 • GIA 1553255657

Certificate GIA 1553255657

Diamond specifications and retailer prices

From $822 SGD
$643 USD
As of November 2, 2026
Save $990 SGD (55%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,086 SGD at NZ Jewellers · As of October 30, 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1553255657. Listed at 14 retailers as of October 29, 2026, with a 120% 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
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1553255657
Dimensions8.35 × 4.12 × 2.49 mm
L/W Ratio2.03
Key to symbols
Twinning Wisp
Top View
8.35 mm4.12 mm0.50 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553255657
Side View
Table 60.0%CrownGirdle: MED-VTKPavilionCulet: NDepth 60.3%

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 2
Current: $3,086 SGD|Low: $685 SGD|High: $3,086 SGD|Avg: $1,389 SGD
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
November 2, 2026
Retailer 9$822 SGD
Retailer 8$874 SGD
Retailer 5$891 SGD
Retailer 11$891 SGD
Retailer 10$926 SGD
Retailer 4$1,029 SGD
Retailer 3$1,097 SGD
Retailer 6$1,172 SGD
Retailer 13$1,272 SGD
Retailer 2$1,275 SGD
Retailer 7$1,812 SGD
Retailer 12$2,841 SGD
NZ Jewellers$3,086 SGD

42 data points across 13 retailers

14 retailers$822 SGD to $1,812 SGD

A
Cheapest Retailer
-
$822 SGD
$643 USD
Final sale: no returns
B+
Retailer 2
-
$874 SGD
$684 USD
View
B+
Retailer 3
-
$891 SGD
$697 USD
View
B+
Retailer 4
-
$891 SGD
$697 USD
View
B+
Retailer 5
-
$910 SGD
$712 USD
View
B+
Retailer 6
-
$926 SGD
$724 USD
View
B+
Retailer 7
-
$1,029 SGD
$805 USD
View
B
Retailer 8
-
$1,097 SGD
$858 USD
View
B
Retailer 9
-
$1,172 SGD
£722 GBP
View
B
Retailer 10
-
$1,184 SGD
$926 USD
View
B
Retailer 11
-
$1,275 SGD
€950 EUR
View
B
Retailer 12
-
$1,812 SGD
£1,116 GBP
View
Retailer 13
-
$2,841 SGD
CA$3,087 CAD
View
Price under review
Most Expensive
NZ Jewellers
208f3f6d-ddf7-4dc5-bb3f-b01eab52b41a · Oct 30
$3,086 SGD
$2,414 USD
View
Price under review
13 more retailers have this diamond
Prices start from $822 SGDSave up to $990 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
$822 SGD