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Radiant|Natural|GIA

3.03ct H SI1 Radiant Natural Diamond

EX • H/SI1 • GIA 1405863002

Certificate GIA 1405863002

Diamond specifications and retailer prices

From £21,683 GBP
As of November 6, 2026
Save £5,297 GBP (20%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £26,979 GBP at 77 Diamonds · As of November 7, 2026
View at 77 Diamonds

About this 3.03ct natural radiant diamond

This 3.03ct natural radiant sits in the three to five carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1405863002. Listed at 6 retailers as of November 6, 2026, with prices from £21,683 to £26,979, a £5,297 spread on the same certified stone. 77 Diamonds lists it at £26,979. 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1405863002
Dimensions9.11 × 7.21 × 4.95 mm
L/W Ratio1.26
Top View
9.11 mm7.21 mm3.03 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1405863002
Side View
Table 64.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 68.7%

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 6
Current: £26,979 GBP|Low: £21,683 GBP|High: £27,524 GBP|Avg: £23,912 GBP|+0.4%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 7, 2026
Retailer 3£21,683 GBP
Retailer 5£23,235 GBP
Retailer 4£23,416 GBP
Retailer 2£24,407 GBP
77 Diamonds£26,979 GBP

39 data points across 5 retailers

6 retailers£21,683 GBP to £26,979 GBP

A
Cheapest Retailer
-
£21,683 GBP
B+
Retailer 2
-
£23,235 GBP
View
B+
Retailer 3
-
£23,416 GBP
View
B+
Retailer 4
-
£23,769 GBP
View
B+
Retailer 5
-
£24,407 GBP
View
Final sale: no returns
Most Expensive
B+
77 Diamonds
RADZ4YKT2CVX · Nov 7
£26,979 GBP
View
5 more retailers have this diamond
Prices start from £21,683 GBPSave up to £5,297 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
3.03ct Radiant
£21,683 GBP