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Round|Natural|GIA

3.03ct I SI2 Round Natural Diamond

EX • I/SI2

Diamond specifications and retailer prices

From £19,900 GBP
As of November 5, 2026
Save £5,941 GBP (23%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £25,841 GBP at Moon Ocean · As of November 6, 2026
View at Moon Ocean

About this 3.03ct natural round diamond

This 3.03ct natural round sits in the three to five carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA. Listed at 4 retailers as of November 5, 2026, with prices from £19,900 to £25,841, a £5,941 spread on the same certified stone. Moon Ocean lists it at £25,841. 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

3.03
Carat
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
Dimensions9.16 × 9.24 × 5.76 mm
L/W Ratio1.01
Top View
9.16 mm9.24 mm3.03 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA
Side View
Table 57.0%CrownGirdle: MediumPavilionCulet: NoneDepth 62.6%

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 5
Current: £25,841 GBP|Low: £19,900 GBP|High: £26,314 GBP|Avg: £23,896 GBP|-0.6%
Moon Ocean
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 3£19,900 GBP
Retailer 4£24,678 GBP
Retailer 2£24,899 GBP
Moon Ocean£25,841 GBP

26 data points across 4 retailers

4 retailers£19,900 GBP to £25,841 GBP

B+
Cheapest Retailer
-
£19,900 GBP
B
Retailer 2
-
£24,678 GBP
View
B
Retailer 3
-
£24,899 GBP
View
Most Expensive
B
Moon Ocean
NVN-7BCB004E8-968 · Nov 6
£25,841 GBP
View
3 more retailers have this diamond
Prices start from £19,900 GBPSave up to £5,941 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+
3.03ct Round
£19,900 GBP