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Radiant|Natural|GIA

1.31ct D SI2 Radiant Natural Diamond

EX • D/SI2 • GIA 2231520847

Certificate GIA 2231520847

Diamond specifications and retailer prices

From £2,484 GBP
As of November 2, 2026
Save £1,894 GBP (43%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £4,378 GBP at NZ Jewellers · As of November 3, 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 D 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 2231520847. Listed at 5 retailers as of November 2, 2026, with prices from £2,484 to £4,378, a £1,894 spread on the same certified stone. NZ Jewellers lists it at £4,378. 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
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle44.59°
Pavilion angle30.96°
OriginNatural
Grading LabGIA
CertificateGIA 2231520847
Dimensions6.89 × 5.40 × 3.76 mm
L/W Ratio1.28
Girdle conditionVery Thick
Key to symbols
Crystal
Top View
6.89 mm5.40 mm1.31 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2231520847
Side View
Table 64.0%Crown 44.59°GirdlePavilion 30.96°CuletDepth 69.6%

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 2
Current: £4,378 GBP|Low: £2,483 GBP|High: £4,445 GBP|Avg: £3,113 GBP|-1.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 2£2,484 GBP
Retailer 4£2,513 GBP
Retailer 5£2,610 GBP
Retailer 9£2,761 GBP
Retailer 8£2,786 GBP
Retailer 6£2,931 GBP
Retailer 7£3,042 GBP
Retailer 3£4,202 GBP
NZ Jewellers£4,378 GBP

29 data points across 9 retailers

5 retailers£2,484 GBP to £4,378 GBP

A
Cheapest Retailer
-
£2,484 GBP
A
Retailer 2
-
£2,513 GBP
View
A
Retailer 3
-
£2,610 GBP
View
B+
Retailer 4
-
£4,202 GBP
View
Most Expensive
B+
NZ Jewellers
e79e7891-b18e-48e9-8fce-884b1ece3b41 · Nov 3
£4,378 GBP
$5,860 USD
View
4 more retailers have this diamond
Prices start from £2,484 GBPSave up to £1,894 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
£2,484 GBP