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Marquise|Natural|GIA

0.50ct F SI2 Marquise Natural Diamond

EX • F/SI2 • GIA 2557735757

Certificate GIA 2557735757

Diamond specifications and retailer prices

From $396 USD
As of November 2, 2026
Save $916 USD (70%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,082 USD at NZ Jewellers · As of October 6, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557735757. Listed at 10 retailers as of November 2, 2026, with a 231% 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
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557735757
Dimensions7.46 × 4.09 × 2.64 mm
L/W Ratio1.82
Girdle conditionVery Thick to Extremely Thick
Key to symbols
Feather
Top View
7.46 mm4.09 mm0.50 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557735757
Side View
Table 58.0%CrownGirdle: VTK-XTKPavilionCulet: NoneDepth 64.6%

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 2
Current: $423 USD|Low: $384 USD|High: $1,547 USD|Avg: $689 USD|-14.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 7$396 USD
Retailer 1$423 USD
Retailer 5$486 USD
Retailer 4$597 USD
Retailer 6$597 USD
Retailer 2$841 USD
Retailer 3$1,312 USD

44 data points across 7 retailers

10 retailers$396 USD to $1,312 USD

A
Cheapest Retailer
-
$396 USD
Final sale: no returns
A
Retailer 2
-
$423 USD
₹40,251 INR
View
A
Retailer 3
-
$486 USD
HK$3,800 HKD
View
A
Retailer 4
-
$597 USD
View
A
Retailer 5
-
$597 USD
SGD 807 SGD
View
Retailer 6
-
$650 USD
View
Price last confirmed 32 days ago
Retailer 7
-
$664 USD
View
Price last confirmed 26 days ago
B+
Retailer 8
-
$841 USD
£662 GBP
View
B
Retailer 9
-
$1,312 USD
£1,033 GBP
View
Most Expensive
NZ Jewellers
4986ef1d-02d4-45db-aca3-0243b5e8706b · Oct 6
$2,082 USD
View
Price last confirmed 27 days ago
9 more retailers have this diamond
Prices start from $396 USDSave up to $916 USD

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
$396 USD