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Marquise|Natural|GIA

0.50ct G SI2 Marquise Natural Diamond

EX • G/SI2 • GIA 6551531952

Certificate GIA 6551531952

Diamond specifications and retailer prices

From $453 USD
As of November 6, 2026
Save $344 USD (43%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $797 USD at Diamond Heaven · As of November 6, 2026
View at Diamond Heaven

About this 0.5ct natural marquise diamond

This 0.5ct natural marquise sits in the half to three-quarter carat band, graded G 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 6551531952. Listed at 4 retailers as of November 6, 2026, with prices from $453 to $797, a $344 spread on the same certified stone. Diamond Heaven lists it at $797. 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
G
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551531952
Dimensions8.21 × 4.02 × 2.58 mm
L/W Ratio2.04
Girdle conditionSlightly Thick to Very Thick
Culet sizeNone
Key to symbols
Twinning Wisp, Feather
Top View
8.21 mm4.02 mm0.50 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateGIA 6551531952
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 64.2%

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: $797 USD|Low: $453 USD|High: $902 USD|Avg: $698 USD|-6.5%
Diamond Heaven
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 2$453 USD
Retailer 4$726 USD
Retailer 3$775 USD
Diamond Heaven$797 USD

46 data points across 4 retailers

4 retailers$453 USD to $797 USD

A
Cheapest Retailer
-
$453 USD
B+
Retailer 2
-
$726 USD
View
B+
Retailer 3
-
$775 USD
View
Most Expensive
B+
Diamond Heaven
0.5SI2G6552CE0CN · Nov 6
$797 USD
£628 GBP
View
3 more retailers have this diamond
Prices start from $453 USDSave up to $344 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
$453 USD