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Marquise|Natural|GIA

0.50ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 5566277388

Certificate GIA 5566277388

Diamond specifications and retailer prices

From $604 SGD
As of November 6, 2026
Save $1,661 SGD (73%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $2,265 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 5566277388. Listed at 18 retailers as of November 5, 2026, with prices from $604 to $2,265, a $1,661 spread on the same certified stone. NZ Jewellers lists it at $2,265. 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
SymmetryGood
FluorescenceFaint
Crown angle42.3°
Pavilion angle34°
OriginNatural
Grading LabGIA
CertificateGIA 5566277388
Dimensions7.51 × 4.21 × 2.47 mm
L/W Ratio1.78
Girdle conditionFaceted
Culet sizeNone
Top View
7.51 mm4.21 mm0.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryGood
FluorescenceFaint
CertificateGIA 5566277388
Side View
Table 60.0%Crown 42.3°Girdle: THK-VTKPavilion 34°Culet: NoneDepth 58.8%

Caratlytics Score

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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: $2,265 SGD|Low: $516 SGD|High: $2,265 SGD|Avg: $877 SGD|+7.0%
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
Retailer 19
November 6, 2026
Retailer 19$520 SGD
Retailer 11$590 SGD
Retailer 16$604 SGD
Retailer 9$622 SGD
Retailer 17$655 SGD
Retailer 15$711 SGD
Retailer 18$711 SGD
Retailer 6$724 SGD
Retailer 7$724 SGD
Retailer 10$729 SGD
Retailer 14$755 SGD
Retailer 8$837 SGD
Retailer 3$866 SGD
Retailer 13$870 SGD
Retailer 2$882 SGD
Retailer 12$969 SGD
Retailer 4$1,034 SGD
Retailer 5$1,553 SGD
NZ Jewellers$2,265 SGD

24 data points across 19 retailers

18 retailers$604 SGD to $2,265 SGD

Retailer 1
-
$520 SGD
Price last confirmed 12 days ago
Retailer 2
-
$590 SGD
View
Price last confirmed 11 days ago
A
Retailer 3
-
$604 SGD
View
Final sale: no returns
Retailer 4
-
$622 SGD
View
Price last confirmed 17 days ago
A
Retailer 5
-
$655 SGD
View
A
Retailer 6
-
$711 SGD
View
A
Retailer 7
-
$711 SGD
View
Retailer 8
-
$724 SGD
View
Price last confirmed 13 days ago
Retailer 9
-
$724 SGD
View
Price last confirmed 13 days ago
Retailer 10
-
$729 SGD
View
Price last confirmed 11 days ago
A
Retailer 11
-
$755 SGD
View
B+
Retailer 12
-
$870 SGD
View
B+
Retailer 13
-
$882 SGD
View
B+
Retailer 14
-
$969 SGD
View
Retailer 15
-
$1,034 SGD
View
Price last confirmed 12 days ago
Retailer 16
-
$1,075 SGD
View
Price last confirmed 34 days ago
Retailer 17
-
$1,553 SGD
View
Price last confirmed 13 days ago
Most Expensive
C
NZ Jewellers
5d455ea6-a4b4-4a43-970c-4a09e1015088 · Nov 5
$2,265 SGD
$1,767 USD
View
17 more retailers have this diamond
Prices start from $604 SGDSave up to $1,661 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
$604 SGD