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Marquise|Natural|GIA

0.59ct H SI1 Marquise Natural Diamond

EX • H/SI1 • GIA 6552492481

Certificate GIA 6552492481

Diamond specifications and retailer prices

From £377 GBP
SGD 683 SGD
As of October 31, 2026
Save £357 GBP (49%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £734 GBP at Frank Darling · As of November 2, 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 6552492481. Listed at 10 retailers as of October 31, 2026, with prices from £377 to £734, a £357 spread on the same certified stone. Frank Darling lists it at £734. 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
OriginNatural
Grading LabGIA
CertificateGIA 6552492481
Dimensions8.68 × 4.51 × 2.62 mm
L/W Ratio1.92
Culet sizeNone
Top View
8.68 mm4.51 mm0.59 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6552492481
Side View
Table 60.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 58.0%

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: Oct 31
Current: £734 GBP|Low: £289 GBP|High: £773 GBP|Avg: £548 GBP|-4.6%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 12£289 GBP
Retailer 7£377 GBP
Retailer 10£416 GBP
Retailer 6£451 GBP
Retailer 5£489 GBP
Retailer 8£541 GBP
Retailer 4£563 GBP
Retailer 11£582 GBP
Retailer 2£588 GBP
Retailer 9£630 GBP
Frank Darling£734 GBP
Retailer 3£773 GBP

24 data points across 12 retailers

10 retailers£377 GBP to £734 GBP

A
Cheapest Retailer
-
£377 GBP
SGD 683 SGD
A
Retailer 2
-
£416 GBP
SGD 755 SGD
View
A
Retailer 3
-
£451 GBP
$605 USD
View
A
Retailer 4
-
£489 GBP
View
A
Retailer 5
-
£541 GBP
$726 USD
View
B+
Retailer 6
-
£563 GBP
$755 USD
View
B+
Retailer 7
-
£582 GBP
$781 USD
View
B+
Retailer 8
-
£588 GBP
€752 EUR
View
B+
Retailer 9
-
£630 GBP
$845 USD
View
Price last confirmed 7 days ago
Most Expensive
B
Frank Darling
2652625HK · Nov 2
£734 GBP
$985 USD
View
9 more retailers have this diamond
Prices start from £377 GBPSave up to £357 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
£377 GBP