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Marquise|Natural|GIA

0.50ct E SI2 Marquise Natural Diamond

EX • E/SI2 • GIA 6551565624

Certificate GIA 6551565624

Diamond specifications and retailer prices

From $984 SGD
$768 USD
As of October 28, 2026
Save $1,264 SGD (56%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,830 SGD at NZ Jewellers · As of October 27, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551565624. Listed at 17 retailers as of October 28, 2026, with a 128% 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38°
Pavilion angle35°
OriginNatural
Grading LabGIA
CertificateGIA 6551565624
Dimensions7.81 × 4.11 × 2.64 mm
L/W Ratio1.90
Culet sizeNone
Key to symbols
Crystal
Top View
7.81 mm4.11 mm0.50 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551565624
Side View
Table 55.0%Crown 38°Girdle: STK-VTKPavilion 35°Culet: NoneDepth 64.1%

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: Oct 28
Current: $1,430 SGD|Low: $984 SGD|High: $2,264 SGD|Avg: $1,339 SGD|+3.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 29, 2026
Retailer 13$984 SGD
Retailer 12$1,115 SGD
Retailer 7$1,122 SGD
Retailer 8$1,125 SGD
Retailer 9$1,221 SGD
Retailer 10$1,233 SGD
Retailer 2$1,247 SGD
Retailer 5$1,260 SGD
Retailer 3$1,351 SGD
Retailer 11$1,392 SGD
Retailer 1$1,430 SGD
Retailer 4$1,902 SGD
Retailer 6$2,248 SGD

40 data points across 13 retailers

17 retailers$984 SGD to $2,248 SGD

A
Cheapest Retailer
-
$984 SGD
$768 USD
B+
Retailer 2
-
$1,115 SGD
$870 USD
View
B+
Retailer 3
-
$1,122 SGD
View
B+
Retailer 4
-
$1,125 SGD
$878 USD
View
Final sale: no returns
B+
Retailer 5
-
$1,221 SGD
$953 USD
View
Price last confirmed 30 days ago
B+
Retailer 6
-
$1,221 SGD
$953 USD
View
B+
Retailer 7
-
$1,221 SGD
$953 USD
View
B+
Retailer 8
-
$1,233 SGD
$962 USD
View
B+
Retailer 9
-
$1,268 SGD
$989 USD
View
B+
Retailer 10
-
$1,392 SGD
$1,086 USD
View
B+
Retailer 11
-
$1,409 SGD
$1,099 USD
View
Price last confirmed 30 days ago
B+
Retailer 12
-
$1,409 SGD
$1,099 USD
View
B+
Retailer 13
-
$1,430 SGD
£878 GBP
View
B+
Retailer 14
-
$1,439 SGD
$1,123 USD
View
Price last confirmed 53 days ago
B
Retailer 15
-
$2,248 SGD
£1,381 GBP
View
B
Retailer 16
-
$3,830 SGD
$2,988 USD
View
Price under review
Most Expensive
B
NZ Jewellers
cf76177b-5519-4e93-bc6a-6d6d0e1547cf · Oct 27
$3,830 SGD
$2,988 USD
View
Price under review
16 more retailers have this diamond
Prices start from $984 SGDSave up to $1,264 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
$984 SGD