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Marquise|Natural|GIA

0.30ct F SI2 Marquise Natural Diamond

EX • F/SI2 • GIA 6555483922

Certificate GIA 6555483922

Diamond specifications and retailer prices

From £239 GBP
$321 USD
As of November 1, 2026
Save £161 GBP (40%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £400 GBP at Yorxs · As of November 2, 2026
View at Yorxs

About this 0.3ct natural marquise diamond

This 0.3ct natural marquise sits in the sub-half-carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6555483922. Listed at 6 retailers as of November 1, 2026, with prices from £239 to £400, a £161 spread on the same certified stone. Yorxs lists it at £400. 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

0.30
Carat
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle39.5°
OriginNatural
Grading LabGIA
CertificateGIA 6555483922
Dimensions6.46 × 3.51 × 2.23 mm
L/W Ratio1.84
Culet sizeNone
Key to symbols
Feather
Top View
6.46 mm3.51 mm0.30 ctF / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6555483922
Side View
Table 59.0%Crown 39.5°Girdle: THK-VTKPavilionCulet: NoneDepth 63.5%

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 1
Current: £310 GBP|Low: £215 GBP|High: £938 GBP|Avg: £393 GBP|+5.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Yorxs
November 2, 2026
Retailer 4£239 GBP
Retailer 5£260 GBP
Retailer 6£263 GBP
Retailer 1£310 GBP
Retailer 3£330 GBP
Yorxs£400 GBP
Retailer 2£924 GBP

42 data points across 7 retailers

6 retailers£239 GBP to £400 GBP

A
Cheapest Retailer
-
£239 GBP
$321 USD
B+
Retailer 2
-
£260 GBP
SGD 472 SGD
View
B
Retailer 3
-
£310 GBP
View
B
Retailer 4
-
£330 GBP
View
Most Expensive
B
Yorxs
532019970 · Nov 2
£400 GBP
€511 EUR
View
4 more retailers have this diamond
Prices start from £239 GBPSave up to £161 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
0.30ct Marquise
£239 GBP