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Radiant|Natural|GIA

1.31ct E SI2 Radiant Natural Diamond

EX • E/SI2 • GIA 6552522943

Certificate GIA 6552522943

Diamond specifications and retailer prices

From £2,538 GBP
As of October 30, 2026
Save £1,764 GBP (41%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £4,502 GBP at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.31ct natural radiant diamond

This 1.31ct natural radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6552522943. Listed at 6 retailers as of October 29, 2026, with a 70% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.31
Carat
E
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle44.94°
Pavilion angle30.43°
OriginNatural
Grading LabGIA
CertificateGIA 6552522943
Dimensions6.89 × 5.35 × 3.71 mm
L/W Ratio1.29
Girdle conditionThick
Key to symbols
Twinning Wisp, Crystal, Feather, Needle, Cloud
Top View
6.89 mm5.35 mm1.31 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6552522943
Side View
Table 66.0%Crown 44.94°GirdlePavilion 30.43°Culet: NoneDepth 69.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £2,538 GBP|Low: £2,426 GBP|High: £4,374 GBP|Avg: £2,905 GBP|-1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 30, 2026
Retailer 6£2,426 GBP
Retailer 1£2,538 GBP
Retailer 5£2,558 GBP
Retailer 4£2,628 GBP
Retailer 3£2,658 GBP
Retailer 2£4,302 GBP

34 data points across 6 retailers

6 retailers£2,538 GBP to £4,302 GBP

A
Cheapest Retailer
-
£2,538 GBP
A
Retailer 2
-
£2,558 GBP
$3,407 USD
View
A
Retailer 3
-
£2,628 GBP
$3,500 USD
View
A
Retailer 4
-
£2,658 GBP
$3,539 USD
View
B+
Retailer 5
-
£4,302 GBP
View
Most Expensive
NZ Jewellers
0a893c53-56ed-4c05-910c-65474839f7bc · Sep 28
£4,502 GBP
$5,995 USD
View
Price last confirmed 32 days ago
5 more retailers have this diamond
Prices start from £2,538 GBPSave up to £1,764 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
1.31ct Radiant
£2,538 GBP