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Marquise|Natural|GIA

0.59ct H SI1 Marquise Natural Diamond

EX • H/SI1 • GIA 6542406013

Certificate GIA 6542406013

Diamond specifications and retailer prices

From £499 GBP
$670 USD
As of November 2, 2026
Save £350 GBP (41%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £849 GBP at Frank Darling · As of November 3, 2026
View at Frank Darling

About this 0.59ct natural marquise diamond

This 0.59ct natural marquise sits in the half to three-quarter carat band, graded H 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 6542406013. Listed at 13 retailers as of November 2, 2026, with prices from £499 to £849, a £350 spread on the same certified stone. Frank Darling lists it at £849. 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.46°
Pavilion angle38.34°
OriginNatural
Grading LabGIA
CertificateGIA 6542406013
Dimensions8.39 × 4.42 × 2.62 mm
L/W Ratio1.90
Top View
8.39 mm4.42 mm0.59 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6542406013
Side View
Table 60.0%Crown 37.46°Girdle: STK-VTKPavilion 38.34°Culet: NoneDepth 59.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £849 GBP|Low: £499 GBP|High: £865 GBP|Avg: £679 GBP|-1.8%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 3, 2026
Retailer 10£499 GBP
Retailer 13£531 GBP
Retailer 2£537 GBP
Retailer 4£566 GBP
Retailer 11£570 GBP
Retailer 6£601 GBP
Retailer 5£684 GBP
Retailer 9£705 GBP
Retailer 8£731 GBP
Retailer 12£759 GBP
Retailer 7£794 GBP
Retailer 3£812 GBP
Frank Darling£849 GBP

42 data points across 13 retailers

13 retailers£499 GBP to £849 GBP

A
Cheapest Retailer
-
£499 GBP
$670 USD
A
Retailer 2
-
£531 GBP
SGD 963 SGD
View
A
Retailer 3
-
£537 GBP
SGD 973 SGD
View
Retailer 4
-
£566 GBP
$759 USD
View
Price last confirmed 7 days ago
B+
Retailer 5
-
£570 GBP
$765 USD
View
B+
Retailer 6
-
£601 GBP
View
Retailer 7
-
£684 GBP
View
Price last confirmed 37 days ago
B+
Retailer 8
-
£693 GBP
$930 USD
View
B+
Retailer 9
-
£705 GBP
$946 USD
View
B+
Retailer 10
-
£731 GBP
€934 EUR
View
B
Retailer 11
-
£759 GBP
$1,018 USD
View
Retailer 12
-
£812 GBP
$1,089 USD
View
Price last confirmed 7 days ago
Most Expensive
B
Frank Darling
2576315HK · Nov 3
£849 GBP
$1,139 USD
View
12 more retailers have this diamond
Prices start from £499 GBPSave up to £350 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.

A
0.59ct Marquise
£499 GBP