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Marquise|Natural|GIA

0.50ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 5566202579

Certificate GIA 5566202579

Diamond specifications and retailer prices

From $713 SGD
As of November 6, 2026
Save $1,707 SGD (71%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,420 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 I 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 5566202579. Listed at 16 retailers as of November 5, 2026, with prices from $713 to $2,420, a $1,707 spread on the same certified stone. NZ Jewellers lists it at $2,420. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5566202579
Dimensions8.01 × 4.19 × 2.39 mm
L/W Ratio1.91
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal
Top View
8.01 mm4.19 mm0.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5566202579
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 57.1%

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: Nov 6
Current: $2,420 SGD|Low: $713 SGD|High: $2,456 SGD|Avg: $1,072 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
November 6, 2026
Retailer 5$713 SGD
Retailer 7$731 SGD
Retailer 11$772 SGD
Retailer 3$788 SGD
Retailer 13$830 SGD
Retailer 4$832 SGD
Retailer 15$891 SGD
Retailer 10$938 SGD
Retailer 8$939 SGD
Retailer 2$941 SGD
Retailer 6$1,019 SGD
Retailer 9$1,134 SGD
Retailer 12$1,191 SGD
Retailer 14$1,779 SGD
NZ Jewellers$2,420 SGD

25 data points across 15 retailers

16 retailers$713 SGD to $2,420 SGD

A
Cheapest Retailer
-
$713 SGD
Final sale: no returns
A
Retailer 2
-
$731 SGD
View
A
Retailer 3
-
$772 SGD
View
Retailer 4
-
$788 SGD
View
Price last confirmed 10 days ago
A
Retailer 5
-
$830 SGD
View
Retailer 6
-
$832 SGD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
$891 SGD
View
B+
Retailer 8
-
$938 SGD
View
B+
Retailer 9
-
$939 SGD
View
B+
Retailer 10
-
$941 SGD
View
B
Retailer 11
-
$1,019 SGD
View
B+
Retailer 12
-
$1,134 SGD
View
B+
Retailer 13
-
$1,191 SGD
View
Retailer 14
-
$1,200 SGD
View
Price last confirmed 33 days ago
B
Retailer 15
-
$1,779 SGD
View
Most Expensive
B
NZ Jewellers
5f9e60fc-e73c-476b-a924-7d86aaa3e94e · Nov 5
$2,420 SGD
$1,888 USD
View
15 more retailers have this diamond
Prices start from $713 SGDSave up to $1,707 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
$713 SGD