Marquise|Natural|GIA

5.26ct G SI1 Marquise Natural Diamond

EX • G/SI1 • GIA 6223353495

Certificate GIA 6223353495

Diamond specifications and retailer prices

From €157,657 EUR
$176,135 USD
As of October 31, 2026
1 retailer carries this diamond
Only listing: €157,657 EUR at Blue Nile
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Blue Nile

About this 5.26ct natural marquise diamond

This 5.26ct natural marquise sits in the over five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6223353495. Listed at a single retailer as of October 31, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

5.26
Carat
G
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle40.1°
OriginNatural
Grading LabGIA
CertificateGIA 6223353495
Dimensions18.29 × 9.02 × 5.67 mm
L/W Ratio2.03
Top View
18.29 mm9.02 mm5.26 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6223353495
Side View
Table 58.0%CrownGirdle: MED-THKPavilion 40.1°CuletDepth 62.8%

Caratlytics Score

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C
Average
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Price History

Last verified: Oct 31
Current: €157,657 EUR|Low: €157,657 EUR|High: €160,029 EUR|Avg: €159,733 EUR
Blue Nile
Retailer 2
September 3, 2026
Blue Nile€157,657 EUR
Retailer 2€160,027 EUR

79 data points across 2 retailers

1 retailer

C
Blue Nile
16010743 · Oct 31
€157,657 EUR
$176,135 USD
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C
5.26ct Marquise
€157,657 EUR