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Radiant|Natural|GIA

3.03ct J SI1 Radiant Natural Diamond

EX • J/SI1 • GIA 1236855397

Certificate GIA 1236855397

Diamond specifications and retailer prices

From £16,037 GBP
As of November 5, 2026
Save £2,992 GBP (16%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £19,029 GBP at Jared · As of November 6, 2026
View at Jared

About this 3.03ct natural radiant diamond

This 3.03ct natural radiant sits in the three to five carat band, graded J 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 1236855397. Listed at 8 retailers as of November 5, 2026, with prices from £16,037 to £19,029, a £2,992 spread on the same certified stone. Jared lists it at £19,029. 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
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1236855397
Dimensions9.56 × 7.55 × 5.02 mm
L/W Ratio1.27
Top View
9.56 mm7.55 mm3.03 ctJ / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceFaint
CertificateGIA 1236855397
Side View
Table 69.0%CrownGirdle: Extremely ThickPavilionCulet: NoneDepth 66.5%

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 5
Current: £19,029 GBP|Low: £15,190 GBP|High: £19,029 GBP|Avg: £18,106 GBP
Jared
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 7, 2026
Retailer 3£16,709 GBP
Retailer 6£17,864 GBP
Retailer 4£18,416 GBP
Retailer 5£18,416 GBP
Retailer 2£18,618 GBP
Jared£19,029 GBP

38 data points across 6 retailers

8 retailers£16,037 GBP to £19,029 GBP

B+
Cheapest Retailer
-
£16,037 GBP
B+
Retailer 2
-
£16,272 GBP
View
B+
Retailer 3
-
£16,709 GBP
View
Final sale: no returns
B
Retailer 4
-
£17,864 GBP
View
B
Retailer 5
-
£18,416 GBP
View
B
Retailer 6
-
£18,416 GBP
View
B
Retailer 7
-
£18,618 GBP
View
Most Expensive
B
Jared
156182434 · Nov 6
£19,029 GBP
$25,470 USD
View
7 more retailers have this diamond
Prices start from £16,037 GBPSave up to £2,992 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 Radiant
£16,037 GBP