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Radiant|Natural|GIA

0.39ct F SI1 Radiant Natural Diamond

EX • F/SI1 • GIA 2557753406

Certificate GIA 2557753406

Diamond specifications and retailer prices

From £232 GBP
As of November 6, 2026
Save £483 GBP (68%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £1,192 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.39ct natural radiant diamond

This 0.39ct natural radiant sits in the sub-half-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557753406. Listed at 19 retailers as of November 6, 2026, with a 208% 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

0.39
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle35.1°
Pavilion angle54°
OriginNatural
Grading LabGIA
CertificateGIA 2557753406
Dimensions5.05 × 3.75 × 2.57 mm
L/W Ratio1.35
Girdle conditionPolished
Culet sizeNone
Top View
5.05 mm3.75 mm0.39 ctF / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2557753406
Side View
Table 65.0%Crown 35.1°Girdle: STK-THKPavilion 54°Culet: NoneDepth 68.7%

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: £1,192 GBP|Low: £232 GBP|High: £1,242 GBP|Avg: £434 GBP|-4.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 7, 2026
Retailer 13£232 GBP
Retailer 8£276 GBP
Retailer 9£277 GBP
Retailer 10£283 GBP
Retailer 17£287 GBP
Retailer 15£312 GBP
Retailer 12£335 GBP
Retailer 18£335 GBP
Retailer 4£359 GBP
Retailer 2£381 GBP
Retailer 16£405 GBP
Retailer 7£423 GBP
Retailer 6£426 GBP
Retailer 5£445 GBP
Retailer 3£485 GBP
Retailer 14£519 GBP
Retailer 11£714 GBP
NZ Jewellers£1,192 GBP

23 data points across 18 retailers

19 retailers£232 GBP to £714 GBP

A
Cheapest Retailer
-
£232 GBP
A
Retailer 2
-
£276 GBP
View
A
Retailer 3
-
£277 GBP
View
A
Retailer 4
-
£283 GBP
View
A
Retailer 5
-
£287 GBP
View
Final sale: no returns
A
Retailer 6
-
£312 GBP
View
A
Retailer 7
-
£335 GBP
View
A
Retailer 8
-
£335 GBP
View
A
Retailer 9
-
£359 GBP
View
B+
Retailer 10
-
£381 GBP
View
B+
Retailer 11
-
£405 GBP
View
B+
Retailer 12
-
£423 GBP
View
B+
Retailer 13
-
£426 GBP
View
B+
Retailer 14
-
£445 GBP
View
B+
Retailer 15
-
£485 GBP
View
B+
Retailer 16
-
£519 GBP
View
Retailer 17
-
£538 GBP
View
Price last confirmed 35 days ago
B
Retailer 18
-
£714 GBP
View
Most Expensive
NZ Jewellers
d8ce5aca-9f91-4e15-a98b-644e959c5035 · Nov 5
£1,192 GBP
$1,596 USD
View
Price under review
18 more retailers have this diamond
Prices start from £232 GBPSave up to £483 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
0.39ct Radiant
£232 GBP