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Marquise|Natural|GIA

0.80ct F SI1 Marquise Natural Diamond

EX • F/SI1 • GIA 5566580172

Certificate GIA 5566580172

Diamond specifications and retailer prices

From £1,421 GBP
HK$14,900 HKD
As of November 1, 2026
Save £1,916 GBP (57%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £3,337 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 0.8ct natural marquise diamond

This 0.8ct natural marquise sits in the just-under-one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5566580172. Listed at 6 retailers as of November 1, 2026, with prices from £1,421 to £3,337, a £1,916 spread on the same certified stone. MOH London lists it at £3,337. 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

0.80
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5566580172
Dimensions10.19 × 4.62 × 2.99 mm
L/W Ratio2.21
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather
Top View
10.19 mm4.62 mm0.80 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5566580172
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 64.7%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: £3,337 GBP|Low: £1,402 GBP|High: £3,355 GBP|Avg: £2,136 GBP|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 3£1,421 GBP
Retailer 5£1,772 GBP
Retailer 2£2,036 GBP
Retailer 6£2,192 GBP
Retailer 4£2,379 GBP
MOH London£3,337 GBP

6 data points across 6 retailers

6 retailers£1,421 GBP to £3,337 GBP

B+
Cheapest Retailer
-
£1,421 GBP
HK$14,900 HKD
B
Retailer 2
-
£1,772 GBP
$2,378 USD
View
B+
Retailer 3
-
£2,036 GBP
View
B
Retailer 4
-
£2,192 GBP
$2,941 USD
View
B
Retailer 5
-
£2,379 GBP
€3,040 EUR
View
Most Expensive
B
MOH London
96F548AFB · Nov 1
£3,337 GBP
View
5 more retailers have this diamond
Prices start from £1,421 GBPSave up to £1,916 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+
0.80ct Marquise
£1,421 GBP