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Radiant|Natural|GIA

1.31ct D SI2 Radiant Natural Diamond

EX • D/SI2 • GIA 1513424649

Certificate GIA 1513424649

Diamond specifications and retailer prices

From £2,912 GBP
As of November 2, 2026
Save £2,015 GBP (41%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £5,185 GBP at NZ Jewellers · As of September 29, 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 1513424649. Listed at 7 retailers as of November 2, 2026, with a 69% 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
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.23°
Pavilion angle31.81°
OriginNatural
Grading LabGIA
CertificateGIA 1513424649
Dimensions7.10 × 5.48 × 3.69 mm
L/W Ratio1.30
Girdle conditionThick
Key to symbols
Crystal, Cloud, Needle
Top View
7.10 mm5.48 mm1.31 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1513424649
Side View
Table 64.0%Crown 43.23°GirdlePavilion 31.81°CuletDepth 67.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 2
Current: £5,185 GBP|Low: £2,911 GBP|High: £5,185 GBP|Avg: £3,710 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 3£2,912 GBP
Retailer 5£2,976 GBP
Retailer 8£3,216 GBP
Retailer 2£3,321 GBP
Retailer 6£3,473 GBP
Retailer 7£3,493 GBP
Retailer 4£4,927 GBP
NZ Jewellers£5,185 GBP

26 data points across 8 retailers

7 retailers£2,912 GBP to £4,927 GBP

A
Cheapest Retailer
-
£2,912 GBP
Retailer 2
-
£2,976 GBP
View
Price last confirmed 38 days ago
Retailer 3
-
£2,976 GBP
View
Price last confirmed 30 days ago
A
Retailer 4
-
£3,321 GBP
View
B
Retailer 5
-
£4,927 GBP
View
Retailer 6
-
£5,185 GBP
View
Price last confirmed 47 days ago
Most Expensive
NZ Jewellers
9ee921a1-e9ea-4893-b84d-7c5e41a3fd6b · Sep 29
£5,185 GBP
$6,940 USD
View
Price last confirmed 38 days ago
6 more retailers have this diamond
Prices start from £2,912 GBPSave up to £2,015 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
£2,912 GBP