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Round|Natural|GIA

3.03ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 6233818370

Certificate GIA 6233818370

Diamond specifications and retailer prices

From £21,356 GBP
As of November 4, 2026
Save £15,180 GBP (42%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £36,536 GBP at MOH London · As of November 4, 2026
View at MOH London

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 6233818370. Listed at 12 retailers as of November 4, 2026, with prices from £21,356 to £36,536, a £15,180 spread on the same certified stone. MOH London lists it at £36,536. 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
FluorescenceNone
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6233818370
Dimensions9.18 × 9.24 × 5.77 mm
L/W Ratio1.01
Top View
9.18 mm9.24 mm3.03 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6233818370
Side View
Table 56.0%Crown 36.5°Girdle: MediumPavilion 40.8°CuletDepth 62.6%

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 4
Current: £36,536 GBP|Low: £21,356 GBP|High: £37,076 GBP|Avg: £26,296 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 4£21,356 GBP
Retailer 2£23,208 GBP
Retailer 9£23,457 GBP
Retailer 6£24,434 GBP
Retailer 5£24,629 GBP
Retailer 7£25,412 GBP
Retailer 8£26,389 GBP
Retailer 3£28,364 GBP
MOH London£36,536 GBP

38 data points across 9 retailers

12 retailers£21,356 GBP to £36,536 GBP

B+
Cheapest Retailer
-
£21,356 GBP
B+
Retailer 2
-
£22,111 GBP
View
B+
Retailer 3
-
£23,208 GBP
View
Retailer 4
-
£23,457 GBP
View
Price last confirmed 8 days ago
B+
Retailer 5
-
£24,434 GBP
View
B+
Retailer 6
-
£24,629 GBP
View
B+
Retailer 7
-
£25,412 GBP
View
B
Retailer 8
-
£25,760 GBP
View
B
Retailer 9
-
£26,389 GBP
View
B
Retailer 10
-
£27,420 GBP
View
B
Retailer 11
-
£28,364 GBP
View
Most Expensive
B
MOH London
12C54A39F · Nov 4
£36,536 GBP
View
11 more retailers have this diamond
Prices start from £21,356 GBPSave up to £15,180 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
£21,356 GBP