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Marquise|Natural|GIA

0.59ct G SI2 Marquise Natural Diamond

VG • G/SI2 • GIA 2

Certificate GIA 2

Diamond specifications and retailer prices

From £647 GBP
As of November 4, 2026
Save £146 GBP (18%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £793 GBP at Blue Nile · As of November 5, 2026
View at Blue Nile

About this 0.59ct natural marquise diamond

This 0.59ct natural marquise sits in the half to three-quarter carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA. Listed at 3 retailers as of November 4, 2026, with prices from £647 to £793, a £146 spread on the same certified stone. Blue Nile lists it at £793. 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
G
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2
Dimensions9.00 × 4.39 × 2.49 mm
L/W Ratio2.05
Top View
9.00 mm4.39 mm0.59 ctG / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2
Side View
Table 62.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 56.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £793 GBP|Low: £647 GBP|High: £793 GBP|Avg: £698 GBP
Blue Nile
Retailer 2
Retailer 3
September 26, 2026
Retailer 3£647 GBP
Retailer 2£701 GBP
Blue Nile£793 GBP

2 data points across 3 retailers

3 retailers£647 GBP to £793 GBP

B+
Cheapest Retailer
-
£647 GBP
B+
Retailer 2
-
£701 GBP
View
Most Expensive
B
Blue Nile
29447618 · Nov 5
£793 GBP
$1,061 USD
View
2 more retailers have this diamond
Prices start from £647 GBPSave up to £146 GBP

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
£647 GBP