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Marquise|Natural|GIA

0.50ct H SI1 Marquise Natural Diamond

EX • H/SI1 • GIA 6562499780

Certificate GIA 6562499780

Diamond specifications and retailer prices

From $736 SGD
As of November 6, 2026
Save $1,089 SGD (60%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,130 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6562499780. Listed at 18 retailers as of November 4, 2026, with a 148% 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6562499780
Dimensions8.10 × 4.22 × 2.64 mm
L/W Ratio1.92
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Cloud
Top View
8.10 mm4.22 mm0.50 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6562499780
Side View
Table 59.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 62.7%

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 6
Current: $3,130 SGD|Low: $736 SGD|High: $3,178 SGD|Avg: $1,271 SGD|-1.5%
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
Retailer 16
Retailer 17
Retailer 18
November 6, 2026
Retailer 2$736 SGD
Retailer 7$891 SGD
Retailer 6$923 SGD
Retailer 3$998 SGD
Retailer 17$998 SGD
Retailer 5$1,014 SGD
Retailer 18$1,037 SGD
Retailer 9$1,128 SGD
Retailer 10$1,152 SGD
Retailer 16$1,168 SGD
Retailer 13$1,180 SGD
Retailer 8$1,191 SGD
Retailer 4$1,218 SGD
Retailer 11$1,218 SGD
Retailer 12$1,288 SGD
Retailer 14$1,539 SGD
Retailer 15$1,825 SGD
NZ Jewellers$3,130 SGD

21 data points across 18 retailers

18 retailers$736 SGD to $1,825 SGD

A
Cheapest Retailer
-
$736 SGD
B+
Retailer 2
-
$891 SGD
View
B+
Retailer 3
-
$923 SGD
View
Retailer 4
-
$998 SGD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$998 SGD
View
B+
Retailer 6
-
$1,014 SGD
View
B+
Retailer 7
-
$1,037 SGD
View
B
Retailer 8
-
$1,128 SGD
View
B+
Retailer 9
-
$1,152 SGD
View
B+
Retailer 10
-
$1,168 SGD
View
B+
Retailer 11
-
$1,180 SGD
View
B+
Retailer 12
-
$1,191 SGD
View
B+
Retailer 13
-
$1,218 SGD
View
B+
Retailer 14
-
$1,218 SGD
View
B
Retailer 15
-
$1,288 SGD
View
B
Retailer 16
-
$1,539 SGD
View
B
Retailer 17
-
$1,825 SGD
View
Most Expensive
NZ Jewellers
84a52555-a39d-4d83-a36b-e799c92ae233 · Nov 5
$3,130 SGD
$2,442 USD
View
Price under review
17 more retailers have this diamond
Prices start from $736 SGDSave up to $1,089 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
$736 SGD