CaratHunter
Plans
Radiant|Natural|GIA

1.02ct F SI1 Radiant Natural Diamond

ID • F/SI1 • GIA 6392857313

Certificate GIA 6392857313

Diamond specifications and retailer prices

From £1,387 GBP
As of November 6, 2026
Save £2,511 GBP (64%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £3,898 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.02ct natural radiant diamond

This 1.02ct natural radiant sits in the classic one-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 6392857313. Listed at 18 retailers as of November 5, 2026, with prices from £1,387 to £3,898, a £2,511 spread on the same certified stone. NZ Jewellers lists it at £3,898. 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

1.02
Carat
F
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6392857313
Dimensions5.96 × 4.90 × 3.57 mm
L/W Ratio1.22
Top View
5.96 mm4.90 mm1.02 ctF / SI1
OriginNatural
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6392857313
Side View
Table 67.0%CrownGirdlePavilionCulet: NoneDepth 72.9%

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: Nov 6
Current: £3,898 GBP|Low: £1,377 GBP|High: £3,898 GBP|Avg: £2,074 GBP
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
Retailer 19
November 7, 2026
Retailer 17£1,387 GBP
Retailer 10£1,684 GBP
Retailer 5£1,685 GBP
Retailer 6£1,721 GBP
Retailer 7£1,745 GBP
Retailer 12£1,809 GBP
Retailer 3£1,864 GBP
Retailer 19£1,864 GBP
Retailer 13£1,928 GBP
Retailer 18£1,951 GBP
Retailer 11£1,969 GBP
Retailer 2£1,972 GBP
Retailer 8£2,011 GBP
Retailer 9£2,025 GBP
Retailer 4£2,151 GBP
Retailer 15£2,275 GBP
Retailer 14£2,315 GBP
Retailer 16£3,266 GBP
NZ Jewellers£3,898 GBP

31 data points across 19 retailers

18 retailers£1,387 GBP to £3,898 GBP

A
Cheapest Retailer
-
£1,387 GBP
A
Retailer 2
-
£1,684 GBP
View
A
Retailer 3
-
£1,685 GBP
View
B+
Retailer 4
-
£1,721 GBP
View
Final sale: no returns
B+
Retailer 5
-
£1,745 GBP
View
A
Retailer 6
-
£1,809 GBP
View
Retailer 7
-
£1,864 GBP
View
Price last confirmed 9 days ago
B+
Retailer 8
-
£1,864 GBP
View
B+
Retailer 9
-
£1,928 GBP
View
B+
Retailer 10
-
£1,951 GBP
View
B+
Retailer 11
-
£1,969 GBP
View
B+
Retailer 12
-
£1,972 GBP
View
B+
Retailer 13
-
£2,025 GBP
View
B+
Retailer 14
-
£2,151 GBP
View
B+
Retailer 15
-
£2,275 GBP
View
B+
Retailer 16
-
£2,315 GBP
View
B
Retailer 17
-
£3,266 GBP
View
Most Expensive
B
NZ Jewellers
9d3744d4-e4fe-4fb0-9149-abdc0fbe579e · Nov 5
£3,898 GBP
$5,217 USD
View
17 more retailers have this diamond
Prices start from £1,387 GBPSave up to £2,511 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
1.02ct Radiant
£1,387 GBP