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Marquise|Natural|GIA

0.50ct D SI1 Marquise Natural Diamond

ID • D/SI1 • GIA 7558321060

Certificate GIA 7558321060

Diamond specifications and retailer prices

From $620 SGD
As of November 6, 2026
Save $1,410 SGD (69%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,336 SGD at NZ Jewellers · As of September 28, 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 7558321060. Listed at 12 retailers as of November 2, 2026, with a 227% 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7558321060
Dimensions7.41 × 4.13 × 2.66 mm
L/W Ratio1.79
Girdle conditionThick
Top View
7.41 mm4.13 mm0.50 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7558321060
Side View
Table 59.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 64.3%

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: $654 SGD|Low: $620 SGD|High: $2,057 SGD|Avg: $1,176 SGD|-17.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 10$620 SGD
Retailer 1$654 SGD
Retailer 7$897 SGD
Retailer 8$1,032 SGD
Retailer 9$1,048 SGD
Retailer 3$1,075 SGD
Retailer 5$1,246 SGD
Retailer 4$1,357 SGD
Retailer 2$1,570 SGD
Retailer 6$2,030 SGD

34 data points across 10 retailers

12 retailers$620 SGD to $2,030 SGD

A
Cheapest Retailer
-
$620 SGD
Final sale: no returns
A
Retailer 2
-
$654 SGD
View
A
Retailer 3
-
$843 SGD
View
A
Retailer 4
-
$897 SGD
View
A
Retailer 5
-
$1,032 SGD
View
A
Retailer 6
-
$1,048 SGD
View
A
Retailer 7
-
$1,075 SGD
View
B+
Retailer 8
-
$1,246 SGD
View
B+
Retailer 9
-
$1,357 SGD
View
Retailer 10
-
$1,570 SGD
View
Price last confirmed 33 days ago
B
Retailer 11
-
$2,030 SGD
View
Most Expensive
NZ Jewellers
98e92365-5df4-46d8-8641-e042bdd38b52 · Sep 28
$3,336 SGD
$2,603 USD
View
Price under review
11 more retailers have this diamond
Prices start from $620 SGDSave up to $1,410 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
$620 SGD