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Marquise|Natural|GIA

0.50ct J SI2 Marquise Natural Diamond

EX • J/SI2 • GIA 5566263559

Certificate GIA 5566263559

Diamond specifications and retailer prices

From $357 USD
₹33,997 INR
As of November 1, 2026
Save $738 USD (67%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,808 USD at NZ Jewellers · As of October 30, 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 J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5566263559. Listed at 17 retailers as of October 29, 2026, with a 207% 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
J
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5566263559
Dimensions7.76 × 4.07 × 2.59 mm
L/W Ratio1.91
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Twinning Wisp, Feather
Top View
7.76 mm4.07 mm0.50 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5566263559
Side View
Table 61.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 63.7%

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 1
Current: $435 USD|Low: $357 USD|High: $1,095 USD|Avg: $550 USD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 3$357 USD
Retailer 9$400 USD
Retailer 1$435 USD
Retailer 2$435 USD
Retailer 4$563 USD
Retailer 6$570 USD
Retailer 5$588 USD
Retailer 8$614 USD
Retailer 7$711 USD
Retailer 10$1,095 USD

15 data points across 10 retailers

17 retailers$357 USD to $1,095 USD

A
Cheapest Retailer
-
$357 USD
₹33,997 INR
A
Retailer 2
-
$400 USD
View
A
Retailer 3
-
$435 USD
View
B+
Retailer 4
-
$435 USD
View
Final sale: no returns
A
Retailer 5
-
$472 USD
View
A
Retailer 6
-
$482 USD
View
A
Retailer 7
-
$508 USD
View
A
Retailer 8
-
$508 USD
View
B+
Retailer 9
-
$544 USD
View
B+
Retailer 10
-
$563 USD
£444 GBP
View
B+
Retailer 11
-
$570 USD
View
B+
Retailer 12
-
$588 USD
£463 GBP
View
B+
Retailer 13
-
$603 USD
View
B+
Retailer 14
-
$614 USD
View
B+
Retailer 15
-
$711 USD
€677 EUR
View
B
Retailer 16
-
$1,095 USD
£862 GBP
View
Most Expensive
NZ Jewellers
924eb302-67a8-4ca8-b6fe-a3b5d9c13a14 · Oct 30
$1,808 USD
View
Price under review
16 more retailers have this diamond
Prices start from $357 USDSave up to $738 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
$357 USD