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Round|Natural|GIA

1.02ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 5406869408

Certificate GIA 5406869408

Diamond specifications and retailer prices

From £2,820 GBP
As of November 5, 2026
Save £1,080 GBP (28%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £5,830 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.02ct natural round diamond

This 1.02ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5406869408. Listed at 19 retailers as of November 5, 2026, with a 38% 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
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5406869408
Dimensions6.48 × 6.45 × 3.98 mm
L/W Ratio1.00
Culet sizeNone
Top View
6.48 mm6.45 mm1.02 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5406869408
Side View
Table 57.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 61.6%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £5,830 GBP|Low: £2,558 GBP|High: £5,916 GBP|Avg: £3,635 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 5£2,875 GBP
Retailer 6£3,070 GBP
Retailer 8£3,139 GBP
Retailer 7£3,325 GBP
Retailer 10£3,325 GBP
Retailer 11£3,325 GBP
Retailer 2£3,591 GBP
Retailer 9£3,622 GBP
Retailer 4£3,899 GBP
Retailer 3£4,052 GBP
MOH London£5,830 GBP

42 data points across 11 retailers

19 retailers£2,820 GBP to £3,899 GBP

B
Cheapest Retailer
-
£2,820 GBP
B
Retailer 2
-
£2,875 GBP
View
B
Retailer 3
-
£2,926 GBP
View
B
Retailer 4
-
£3,070 GBP
View
Final sale: no returns
B
Retailer 5
-
£3,124 GBP
View
B
Retailer 6
-
£3,139 GBP
View
Retailer 7
-
£3,325 GBP
View
Price last confirmed 8 days ago
B
Retailer 8
-
£3,325 GBP
View
B
Retailer 9
-
£3,325 GBP
View
B
Retailer 10
-
£3,591 GBP
View
B
Retailer 11
-
£3,622 GBP
View
B
Retailer 12
-
£3,737 GBP
View
B
Retailer 13
-
£3,737 GBP
View
B
Retailer 14
-
£3,837 GBP
View
B
Retailer 15
-
£3,864 GBP
View
B
Retailer 16
-
£3,899 GBP
View
Retailer 17
-
£4,052 GBP
View
Price last confirmed 14 days ago
Most Expensive
MOH London
766155B09 · Nov 4
£5,830 GBP
View
Price under review
17 more retailers have this diamond
Prices start from £2,820 GBPSave up to £1,080 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.

B
1.02ct Round
£2,820 GBP