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Marquise|Natural|GIA

0.50ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 2557165660

Certificate GIA 2557165660

Diamond specifications and retailer prices

From $745 SGD
As of November 6, 2026
Save $2,334 SGD (76%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,078 SGD at NZ Jewellers · As of November 5, 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557165660. Listed at 13 retailers as of November 5, 2026, with prices from $745 to $3,078, a $2,334 spread on the same certified stone. NZ Jewellers lists it at $3,078. 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
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557165660
Dimensions8.53 × 4.10 × 2.47 mm
L/W Ratio2.08
Top View
8.53 mm4.10 mm0.50 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557165660
Side View
Table 58.0%CrownGirdle: UND-UNDPavilionCulet: NoneDepth 60.1%

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 6
Current: $745 SGD|Low: $745 SGD|High: $1,816 SGD|Avg: $1,130 SGD|-2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 1$745 SGD
Retailer 7$906 SGD
Retailer 6$1,001 SGD
Retailer 3$1,005 SGD
Retailer 8$1,019 SGD
Retailer 2$1,171 SGD
Retailer 4$1,385 SGD
Retailer 5$1,797 SGD

37 data points across 8 retailers

13 retailers$745 SGD to $3,078 SGD

A
Cheapest Retailer
-
$745 SGD
A
Retailer 2
-
$906 SGD
View
Final sale: no returns
A
Retailer 3
-
$982 SGD
View
A
Retailer 4
-
$1,001 SGD
View
A
Retailer 5
-
$1,005 SGD
View
A
Retailer 6
-
$1,015 SGD
View
A
Retailer 7
-
$1,019 SGD
View
B+
Retailer 8
-
$1,113 SGD
View
B+
Retailer 9
-
$1,133 SGD
View
B+
Retailer 10
-
$1,171 SGD
View
B+
Retailer 11
-
$1,385 SGD
View
B
Retailer 12
-
$1,797 SGD
View
Most Expensive
B
NZ Jewellers
0d6eefda-45c2-4910-8efa-370fbd0c370c · Nov 5
$3,078 SGD
$2,410 USD
View
12 more retailers have this diamond
Prices start from $745 SGDSave up to $2,334 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
$745 SGD