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Marquise|Natural|GIA

0.50ct F SI1 Marquise Natural Diamond

ID • F/SI1 • GIA 2557610480

Certificate GIA 2557610480

Diamond specifications and retailer prices

From $596 SGD
As of November 6, 2026
Save $2,063 SGD (78%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,959 SGD at NZ Jewellers · As of September 20, 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 F 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 2557610480. Listed at 12 retailers as of November 5, 2026, with a 346% 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
F
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 2557610480
Dimensions7.74 × 4.06 × 2.64 mm
L/W Ratio1.91
Girdle conditionVery Thick
Top View
7.74 mm4.06 mm0.50 ctF / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 2557610480
Side View
Table 60.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 65.0%

Caratlytics Score

How it works →
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: $2,659 SGD|Low: $588 SGD|High: $2,905 SGD|Avg: $1,257 SGD|-8.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 11$596 SGD
Retailer 2$629 SGD
Retailer 9$865 SGD
Retailer 10$1,003 SGD
Retailer 5$1,034 SGD
Retailer 8$1,062 SGD
Retailer 4$1,200 SGD
Retailer 6$1,309 SGD
Retailer 3$1,392 SGD
Retailer 7$1,956 SGD
NZ Jewellers$2,659 SGD

37 data points across 11 retailers

12 retailers$596 SGD to $2,659 SGD

A
Cheapest Retailer
-
$596 SGD
Final sale: no returns
A
Retailer 2
-
$629 SGD
View
A
Retailer 3
-
$865 SGD
View
B+
Retailer 4
-
$1,003 SGD
View
B+
Retailer 5
-
$1,034 SGD
View
Retailer 6
-
$1,062 SGD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$1,200 SGD
View
B+
Retailer 8
-
$1,309 SGD
View
Retailer 9
-
$1,392 SGD
View
Price last confirmed 34 days ago
B
Retailer 10
-
$1,956 SGD
View
B
Retailer 11
-
$2,659 SGD
View
Most Expensive
NZ Jewellers
41ac391f-054d-44d6-bd7c-67501b39083f · Sep 20
$2,959 SGD
$2,309 USD
View
Price under review
11 more retailers have this diamond
Prices start from $596 SGDSave up to $2,063 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
$596 SGD