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Radiant|Natural|GIA

1.02ct K SI1 Radiant Natural Diamond

EX • K/SI1 • GIA 6542994034

Certificate GIA 6542994034

Diamond specifications and retailer prices

From £650 GBP
As of November 6, 2026
Save £970 GBP (60%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £2,318 GBP at NZ Jewellers · As of September 25, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6542994034. Listed at 18 retailers as of November 4, 2026, with a 149% 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

1.02
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6542994034
Dimensions6.80 × 5.03 × 3.37 mm
L/W Ratio1.35
Top View
6.80 mm5.03 mm1.02 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6542994034
Side View
Table 67.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 67.1%

Caratlytics Score

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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: £891 GBP|Low: £650 GBP|High: £1,718 GBP|Avg: £1,022 GBP|-1.8%
Retailer 1
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
November 7, 2026
Retailer 12£650 GBP
Retailer 6£787 GBP
Retailer 7£805 GBP
Retailer 14£819 GBP
Retailer 2£888 GBP
Retailer 1£891 GBP
Retailer 9£910 GBP
Retailer 15£979 GBP
Retailer 13£982 GBP
Retailer 4£1,019 GBP
Retailer 10£1,083 GBP
Retailer 8£1,233 GBP
Retailer 5£1,244 GBP
Retailer 3£1,368 GBP
Retailer 11£1,620 GBP

30 data points across 15 retailers

18 retailers£650 GBP to £1,620 GBP

A
Cheapest Retailer
-
£650 GBP
Retailer 2
-
£787 GBP
View
Price last confirmed 10 days ago
Retailer 3
-
£805 GBP
View
Price last confirmed 10 days ago
Retailer 4
-
£807 GBP
View
Price last confirmed 8 days ago
A
Retailer 5
-
£819 GBP
View
Final sale: no returns
A
Retailer 6
-
£888 GBP
View
A
Retailer 7
-
£891 GBP
View
A
Retailer 8
-
£910 GBP
View
A
Retailer 9
-
£979 GBP
View
B+
Retailer 10
-
£982 GBP
View
B+
Retailer 11
-
£1,019 GBP
View
B+
Retailer 12
-
£1,062 GBP
View
A
Retailer 13
-
£1,083 GBP
View
B+
Retailer 14
-
£1,233 GBP
View
Retailer 15
-
£1,244 GBP
View
Price last confirmed 8 days ago
B+
Retailer 16
-
£1,368 GBP
View
B
Retailer 17
-
£1,620 GBP
View
Most Expensive
NZ Jewellers
40b5b042-7810-4507-8392-5e55ce0691af · Sep 25
£2,318 GBP
$3,102 USD
View
Price last confirmed 42 days ago
17 more retailers have this diamond
Prices start from £650 GBPSave up to £970 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
£650 GBP