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Marquise|Natural|GIA

0.59ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 2544769605

Certificate GIA 2544769605

Diamond specifications and retailer prices

From £279 GBP
SGD 506 SGD
As of October 31, 2026
Save £327 GBP (54%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £606 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 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 2544769605. Listed at 8 retailers as of October 31, 2026, with prices from £279 to £606, a £327 spread on the same certified stone. Frank Darling lists it at £606. 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
FluorescenceFaint
Crown angle39.11°
Pavilion angle37.55°
OriginNatural
Grading LabGIA
CertificateGIA 2544769605
Dimensions8.45 × 4.45 × 2.64 mm
L/W Ratio1.90
Top View
8.45 mm4.45 mm0.59 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2544769605
Side View
Table 59.0%Crown 39.11°Girdle: ThickPavilion 37.55°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: Oct 31
Current: £606 GBP|Low: £208 GBP|High: £649 GBP|Avg: £419 GBP|-6.6%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 28, 2026
Retailer 10£208 GBP
Retailer 5£279 GBP
Retailer 7£282 GBP
Retailer 6£366 GBP
Retailer 4£368 GBP
Retailer 2£396 GBP
Retailer 3£406 GBP
Retailer 8£434 GBP
Retailer 9£535 GBP
Retailer 11£567 GBP
Frank Darling£606 GBP

23 data points across 11 retailers

8 retailers£279 GBP to £606 GBP

A
Cheapest Retailer
-
£279 GBP
SGD 506 SGD
A
Retailer 2
-
£282 GBP
SGD 511 SGD
View
A
Retailer 3
-
£366 GBP
$491 USD
View
A
Retailer 4
-
£368 GBP
$493 USD
View
A
Retailer 5
-
£396 GBP
$530 USD
View
A
Retailer 6
-
£406 GBP
$544 USD
View
A
Retailer 7
-
£434 GBP
$582 USD
View
Most Expensive
B+
Frank Darling
2596443HK · Nov 2
£606 GBP
$813 USD
View
7 more retailers have this diamond
Prices start from £279 GBPSave up to £327 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
£279 GBP