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Marquise|Natural|GIA

0.50ct D SI1 Marquise Natural Diamond

EX • D/SI1 • GIA 2556419943

Certificate GIA 2556419943

Diamond specifications and retailer prices

From $637 SGD
As of November 6, 2026
Save $2,080 SGD (77%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $2,717 SGD at NZ Jewellers · As of October 17, 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 D 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 2556419943. Listed at 24 retailers as of November 5, 2026, with a 327% 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556419943
Dimensions7.48 × 4.19 × 2.73 mm
L/W Ratio1.79
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity, Indented Natural
Top View
7.48 mm4.19 mm0.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2556419943
Side View
Table 59.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 65.1%

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: $637 SGD|Low: $637 SGD|High: $2,020 SGD|Avg: $1,129 SGD|-2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 1$637 SGD
Retailer 10$798 SGD
Retailer 7$866 SGD
Retailer 8$871 SGD
Retailer 4$1,057 SGD
Retailer 9$1,102 SGD
Retailer 3$1,226 SGD
Retailer 2$1,302 SGD
Retailer 5$1,337 SGD
Retailer 6$1,998 SGD

37 data points across 10 retailers

24 retailers$637 SGD to $2,717 SGD

A
Cheapest Retailer
-
$637 SGD
A
Retailer 2
-
$798 SGD
View
Final sale: no returns
A
Retailer 3
-
$820 SGD
View
Retailer 4
-
$866 SGD
View
Price last confirmed 39 days ago
Retailer 5
-
$866 SGD
View
Price last confirmed 8 days ago
Retailer 6
-
$866 SGD
View
Price last confirmed 19 days ago
Retailer 7
-
$866 SGD
View
Price last confirmed 8 days ago
Retailer 8
-
$866 SGD
View
Price last confirmed 21 days ago
A
Retailer 9
-
$871 SGD
View
Retailer 10
-
$900 SGD
View
Price last confirmed 20 days ago
Retailer 11
-
$1,000 SGD
View
Price last confirmed 38 days ago
Retailer 12
-
$1,000 SGD
View
Price last confirmed 28 days ago
B+
Retailer 13
-
$1,036 SGD
View
B+
Retailer 14
-
$1,057 SGD
View
B+
Retailer 15
-
$1,102 SGD
View
Retailer 16
-
$1,120 SGD
View
Price last confirmed 41 days ago
B+
Retailer 17
-
$1,189 SGD
View
B+
Retailer 18
-
$1,226 SGD
View
Retailer 19
-
$1,302 SGD
View
Price last confirmed 33 days ago
B+
Retailer 20
-
$1,337 SGD
View
B
Retailer 21
-
$1,998 SGD
View
Retailer 22
-
$2,717 SGD
View
Price last confirmed 39 days ago
B
Retailer 23
-
$2,717 SGD
View
Most Expensive
NZ Jewellers
4efd96dc-3d7a-453b-89aa-88280ee104e8 · Oct 17
$2,717 SGD
$2,120 USD
View
Price last confirmed 19 days ago
23 more retailers have this diamond
Prices start from $637 SGDSave up to $2,080 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
$637 SGD