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Radiant|Natural|GIA

3.05ct I SI1 Radiant Natural Diamond

EX • I/SI1 • GIA 5231039751

Certificate GIA 5231039751

Diamond specifications and retailer prices

From £15,083 GBP
As of November 6, 2026
Save £3,627 GBP (19%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £18,711 GBP at 77 Diamonds · As of November 7, 2026
View at 77 Diamonds

About this 3.05ct natural radiant diamond

This 3.05ct natural radiant sits in the three to five carat band, graded I 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 5231039751. Listed at 6 retailers as of November 6, 2026, with prices from £15,083 to £18,711, a £3,627 spread on the same certified stone. 77 Diamonds lists it at £18,711. 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

3.05
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5231039751
Dimensions8.70 × 7.94 × 5.25 mm
L/W Ratio1.10
Top View
8.70 mm7.94 mm3.05 ctI / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 5231039751
Side View
Table 64.0%CrownGirdle: ETN-STKPavilionCulet: NoneDepth 66.1%

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: £18,711 GBP|Low: £15,083 GBP|High: £19,087 GBP|Avg: £16,495 GBP|+0.4%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 7, 2026
Retailer 3£15,083 GBP
Retailer 5£15,986 GBP
Retailer 4£16,116 GBP
Retailer 2£16,792 GBP
77 Diamonds£18,711 GBP

30 data points across 5 retailers

6 retailers£15,083 GBP to £18,711 GBP

A
Cheapest Retailer
-
£15,083 GBP
A
Retailer 2
-
£15,986 GBP
View
A
Retailer 3
-
£16,116 GBP
View
A
Retailer 4
-
£16,353 GBP
View
A
Retailer 5
-
£16,792 GBP
View
Final sale: no returns
Most Expensive
A
77 Diamonds
RADZNXTNGEXS · Nov 7
£18,711 GBP
View
5 more retailers have this diamond
Prices start from £15,083 GBPSave up to £3,627 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
3.05ct Radiant
£15,083 GBP