Round|Natural|GIA

3.00ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 2566504337

Certificate GIA 2566504337

Diamond specifications and retailer prices

From £27,201 GBP
As of November 4, 2026
Save £2,675 GBP (9%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £29,875 GBP at Brilliance · As of November 3, 2026
View at Brilliance

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 2566504337. Listed at 4 retailers as of November 3, 2026, with a relatively tight 10% 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
SymmetryVery Good
FluorescenceNone
Crown angle35.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2566504337
Dimensions9.15 × 9.21 × 5.69 mm
L/W Ratio1.01
Culet sizeVery Small
Key to symbols
Crystal, Feather, Cavity, Cloud, Needle, Indented Natural, Natural
Top View
9.15 mm9.21 mm3.00 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2566504337
Side View
Table 56.0%Crown 35.5°Girdle: MED-STKPavilion 40.6°Culet: Very SmallDepth 62.0%

Caratlytics Score

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

Price History

Last verified: Nov 4
Current: £29,875 GBP|Low: £27,201 GBP|High: £29,875 GBP|Avg: £28,607 GBP
Brilliance
Retailer 2
Retailer 3
Retailer 4
November 5, 2026
Retailer 4£27,201 GBP
Retailer 2£27,286 GBP
Retailer 3£29,630 GBP
Brilliance£29,875 GBP

3 data points across 4 retailers

4 retailers£27,201 GBP to £29,875 GBP

B+
Cheapest Retailer
-
£27,201 GBP
B+
Retailer 2
-
£27,286 GBP
View
B+
Retailer 3
-
£29,630 GBP
View
Most Expensive
B+
Brilliance
D46677208 · Nov 3
£29,875 GBP
$39,988 USD
View
3 more retailers have this diamond
Prices start from £27,201 GBPSave up to £2,675 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+
3.00ct Round
£27,201 GBP