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Heart|Natural|GIA

1.02ct J SI1 Heart Natural Diamond

EX • J/SI1 • GIA 2548375533

Certificate GIA 2548375533

Diamond specifications and retailer prices

From £963 GBP
As of November 6, 2026
Save £1,202 GBP (56%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £3,283 GBP at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.02ct natural heart diamond

This 1.02ct natural heart sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2548375533. Listed at 16 retailers as of November 2, 2026, with a 125% 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle38.8°
OriginNatural
Grading LabGIA
CertificateGIA 2548375533
Dimensions6.08 × 6.87 × 4.11 mm
L/W Ratio1.13
Top View
6.08 mm6.87 mm1.02 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2548375533
Side View
Table 57.0%CrownGirdle: STK-VTKPavilion 38.8°Culet: NoneDepth 59.8%

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: £1,416 GBP|Low: £955 GBP|High: £2,311 GBP|Avg: £1,379 GBP|+0.2%
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
November 5, 2026
Retailer 5£963 GBP
Retailer 3£965 GBP
Retailer 4£1,034 GBP
Retailer 10£1,068 GBP
Retailer 9£1,124 GBP
Retailer 14£1,165 GBP
Retailer 12£1,188 GBP
Retailer 2£1,355 GBP
Retailer 8£1,371 GBP
Retailer 1£1,416 GBP
Retailer 7£1,508 GBP
Retailer 6£1,700 GBP
Retailer 11£1,945 GBP
Retailer 13£2,165 GBP

32 data points across 14 retailers

16 retailers£963 GBP to £2,165 GBP

A
Cheapest Retailer
-
£963 GBP
A
Retailer 2
-
£965 GBP
View
A
Retailer 3
-
£1,034 GBP
View
Final sale: no returns
A
Retailer 4
-
£1,068 GBP
View
A
Retailer 5
-
£1,124 GBP
View
A
Retailer 6
-
£1,165 GBP
View
A
Retailer 7
-
£1,188 GBP
View
B+
Retailer 8
-
£1,355 GBP
View
B+
Retailer 9
-
£1,371 GBP
View
B+
Retailer 10
-
£1,416 GBP
View
B+
Retailer 11
-
£1,485 GBP
View
B+
Retailer 12
-
£1,508 GBP
View
Retailer 13
-
£1,700 GBP
View
Price last confirmed 33 days ago
B
Retailer 14
-
£1,945 GBP
View
B
Retailer 15
-
£2,165 GBP
View
Most Expensive
NZ Jewellers
157135bd-ede5-4402-b9ba-a6e43665365f · Sep 25
£3,283 GBP
$4,394 USD
View
Price last confirmed 42 days ago
15 more retailers have this diamond
Prices start from £963 GBPSave up to £1,202 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 Heart
£963 GBP