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Marquise|Natural|GIA

0.59ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 6542768882

Certificate GIA 6542768882

Diamond specifications and retailer prices

From £536 GBP
$718 USD
As of November 2, 2026
1 retailer carries this diamond
Only listing: £536 GBP at The Diamond Guys
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 The Diamond Guys

About this 0.59ct natural marquise diamond

This 0.59ct natural marquise sits in the half to three-quarter carat band, graded I 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 6542768882. Listed at a single retailer as of November 2, 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

0.59
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.94°
Pavilion angle41.62°
OriginNatural
Grading LabGIA
CertificateGIA 6542768882
Dimensions8.24 × 4.35 × 2.80 mm
L/W Ratio1.89
Top View
8.24 mm4.35 mm0.59 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6542768882
Side View
Table 59.0%Crown 37.94°Girdle: STK-VTKPavilion 41.62°Culet: NoneDepth 64.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 2
Current: £478 GBP|Low: £275 GBP|High: £807 GBP|Avg: £571 GBP|-15.9%
Retailer 1
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Retailer 5
Retailer 6
Retailer 7
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Retailer 12
The Diamond Guys
September 17, 2026
Retailer 2£275 GBP
Retailer 9£403 GBP
Retailer 11£434 GBP
Retailer 8£468 GBP
Retailer 1£478 GBP
The Diamond Guys£536 GBP
Retailer 10£564 GBP
Retailer 6£596 GBP
Retailer 3£623 GBP
Retailer 5£637 GBP
Retailer 7£652 GBP
Retailer 4£749 GBP
Retailer 12£762 GBP

49 data points across 13 retailers

1 retailer

B+
The Diamond Guys
1927390935 · Nov 2
£536 GBP
$718 USD
View

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.

B+
0.59ct Marquise
£536 GBP