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Marquise|Natural|GIA

0.53ct K SI1 Marquise Natural Diamond

EX • K/SI1 • GIA 6565167774

Certificate GIA 6565167774

Diamond specifications and retailer prices

From £208 GBP
As of November 4, 2026
Save £335 GBP (62%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £543 GBP at Frank Darling · As of November 6, 2026
View at Frank Darling

About this 0.53ct natural marquise diamond

This 0.53ct natural marquise sits in the half to three-quarter carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6565167774. Listed at 8 retailers as of November 4, 2026, with prices from £208 to £543, a £335 spread on the same certified stone. Frank Darling lists it at £543. 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

0.53
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle38.67°
Pavilion angle40.44°
OriginNatural
Grading LabGIA
CertificateGIA 6565167774
Dimensions7.95 × 4.20 × 2.68 mm
L/W Ratio1.89
Culet sizeNone
Top View
7.95 mm4.20 mm0.53 ctK / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6565167774
Side View
Table 57.0%Crown 38.67°Girdle: MED-VTKPavilion 40.44°Culet: NoneDepth 63.9%

Caratlytics Score

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

Price History

Last verified: Nov 4
Current: £543 GBP|Low: £186 GBP|High: £566 GBP|Avg: £291 GBP|-4.1%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 9£186 GBP
Retailer 8£208 GBP
Retailer 7£218 GBP
Retailer 4£230 GBP
Retailer 2£233 GBP
Retailer 6£283 GBP
Retailer 5£305 GBP
Retailer 3£332 GBP
Frank Darling£543 GBP

23 data points across 9 retailers

8 retailers£208 GBP to £543 GBP

A
Cheapest Retailer
-
£208 GBP
A
Retailer 2
-
£218 GBP
View
A
Retailer 3
-
£230 GBP
View
A
Retailer 4
-
£233 GBP
View
A
Retailer 5
-
£283 GBP
View
A
Retailer 6
-
£305 GBP
View
A
Retailer 7
-
£332 GBP
View
Most Expensive
B+
Frank Darling
2680312HK · Nov 6
£543 GBP
$731 USD
View
7 more retailers have this diamond
Prices start from £208 GBPSave up to £335 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
0.53ct Marquise
£208 GBP