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Marquise|Natural|GIA

0.50ct E SI1 Marquise Natural Diamond

ID • E/SI1 • GIA 3545398580

Certificate GIA 3545398580

Diamond specifications and retailer prices

From $955 SGD
As of November 4, 2026
Save $1,295 SGD (58%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $3,855 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 3545398580. Listed at 23 retailers as of November 2, 2026, with a 136% 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
E
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 3545398580
Dimensions8.10 × 4.15 × 2.57 mm
L/W Ratio1.95
Top View
8.10 mm4.15 mm0.50 ctE / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 3545398580
Side View
Table 58.0%CrownGirdle: VTN-THKPavilion 40.6°Culet: NoneDepth 62.0%

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 4
Current: $3,855 SGD|Low: $955 SGD|High: $3,855 SGD|Avg: $1,731 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 9$955 SGD
Retailer 5$1,070 SGD
Retailer 3$1,114 SGD
Retailer 11$1,156 SGD
Retailer 8$1,322 SGD
Retailer 4$1,424 SGD
Retailer 2$1,721 SGD
Retailer 10$1,848 SGD
Retailer 6$1,897 SGD
Retailer 7$2,251 SGD
NZ Jewellers$3,855 SGD

45 data points across 11 retailers

23 retailers$955 SGD to $2,251 SGD

A
Cheapest Retailer
-
$955 SGD
Final sale: no returns
A
Retailer 2
-
$1,028 SGD
View
A
Retailer 3
-
$1,070 SGD
View
B+
Retailer 4
-
$1,093 SGD
View
B+
Retailer 5
-
$1,105 SGD
View
B+
Retailer 6
-
$1,114 SGD
View
Retailer 7
-
$1,114 SGD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$1,116 SGD
View
B+
Retailer 9
-
$1,127 SGD
View
B+
Retailer 10
-
$1,156 SGD
View
B+
Retailer 11
-
$1,243 SGD
View
B+
Retailer 12
-
$1,285 SGD
View
B
Retailer 13
-
$1,322 SGD
View
B+
Retailer 14
-
$1,381 SGD
View
B+
Retailer 15
-
$1,424 SGD
View
B
Retailer 16
-
$1,515 SGD
View
B
Retailer 17
-
$1,636 SGD
View
B
Retailer 18
-
$1,721 SGD
View
Retailer 19
-
$1,848 SGD
View
Price last confirmed 33 days ago
B
Retailer 20
-
$1,897 SGD
View
B
Retailer 21
-
$1,987 SGD
View
B
Retailer 22
-
$2,251 SGD
View
Most Expensive
NZ Jewellers
ecb8af5a-ce34-49cf-9bbe-67104c100532 · Nov 5
$3,855 SGD
$3,018 USD
View
Price under review
22 more retailers have this diamond
Prices start from $955 SGDSave up to $1,295 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
$955 SGD