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Marquise|Natural|GIA

0.59ct D SI1 Marquise Natural Diamond

VG • D/SI1 • GIA 5231939395

Certificate GIA 5231939395

Diamond specifications and retailer prices

From £731 GBP
$981 USD
As of November 2, 2026
1 retailer carries this diamond
Only listing: £731 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 D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5231939395. 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. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.59
Carat
D
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.15°
Pavilion angle38°
OriginNatural
Grading LabGIA
CertificateGIA 5231939395
Dimensions8.38 × 4.51 × 2.62 mm
L/W Ratio1.86
Top View
8.38 mm4.51 mm0.59 ctD / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5231939395
Side View
Table 61.0%Crown 37.15°Girdle: STK-VTKPavilion 38°Culet: NoneDepth 58.1%

Caratlytics Score

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

Last verified: Nov 2
Current: £604 GBP|Low: £376 GBP|High: £1,076 GBP|Avg: £725 GBP|-12.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
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Retailer 11
Retailer 12
The Diamond Guys
August 25, 2026
Retailer 2£376 GBP
Retailer 7£552 GBP
Retailer 5£589 GBP
Retailer 1£604 GBP
Retailer 8£622 GBP
Retailer 6£623 GBP
Retailer 10£626 GBP
The Diamond Guys£731 GBP
Retailer 12£796 GBP
Retailer 11£841 GBP
Retailer 9£911 GBP
Retailer 4£958 GBP
Retailer 3£994 GBP

45 data points across 13 retailers

1 retailer

B+
The Diamond Guys
1955272619 · Nov 2
£731 GBP
$981 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
£731 GBP