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Round|Natural|GIA

3.00ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 2556403800

Certificate GIA 2556403800

Diamond specifications and retailer prices

From £23,621 GBP
As of November 6, 2026
Save £2,007 GBP (8%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £25,628 GBP at Adiamor · As of November 5, 2026
View at Adiamor

About this 3ct natural round diamond

This 3ct natural round sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2556403800. Listed at 2 retailers as of November 5, 2026, with a relatively tight 8% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

3.00
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 2556403800
Dimensions9.21 × 9.15 × 5.72 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle, Indented Natural, Natural
Top View
9.21 mm9.15 mm3.00 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2556403800
Side View
Table 59.0%Crown 35°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: £25,628 GBP|Low: £23,621 GBP|High: £27,249 GBP|Avg: £25,612 GBP|-5.9%
Adiamor
Retailer 2
November 6, 2026
Retailer 2£23,621 GBP
Adiamor£25,628 GBP

40 data points across 2 retailers

2 retailers£23,621 GBP to £25,628 GBP

A
Cheapest Retailer
-
£23,621 GBP
Most Expensive
B+
Adiamor
D-81174871 · Nov 5
£25,628 GBP
$34,303 USD
View
1 more retailer has this diamond
Prices start from £23,621 GBPSave up to £2,007 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
3.00ct Round
£23,621 GBP