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Heart|Natural|GIA

1.01ct J SI2 Heart Natural Diamond

EX • J/SI2 • GIA 7558673722

Certificate GIA 7558673722

Diamond specifications and retailer prices

From £640 GBP
As of November 6, 2026
Save £1,472 GBP (70%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £2,358 GBP at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.01ct natural heart diamond

This 1.01ct natural heart sits in the classic one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7558673722. Listed at 12 retailers as of November 5, 2026, with a 230% 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

1.01
Carat
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Pavilion angle38.09°
OriginNatural
Grading LabGIA
CertificateGIA 7558673722
Dimensions6.29 × 6.79 × 3.72 mm
L/W Ratio1.08
Key to symbols
Twinning Wisp, Crystal, Feather, Needle
Top View
6.29 mm6.79 mm1.01 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7558673722
Side View
Table 57.0%CrownGirdle: STK-THKPavilion 38.09°Culet: NoneDepth 59.1%

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: £2,112 GBP|Low: £640 GBP|High: £2,309 GBP|Avg: £1,237 GBP|-8.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 7£640 GBP
Retailer 8£866 GBP
Retailer 9£879 GBP
Retailer 2£886 GBP
Retailer 5£900 GBP
Retailer 10£1,101 GBP
Retailer 4£1,219 GBP
Retailer 3£1,576 GBP
Retailer 6£1,586 GBP
NZ Jewellers£2,112 GBP

36 data points across 10 retailers

12 retailers£640 GBP to £2,112 GBP

A
Cheapest Retailer
-
£640 GBP
A
Retailer 2
-
£866 GBP
View
A
Retailer 3
-
£879 GBP
View
A
Retailer 4
-
£886 GBP
View
A
Retailer 5
-
£900 GBP
View
Retailer 6
-
£967 GBP
View
Price last confirmed 45 days ago
B+
Retailer 7
-
£1,101 GBP
View
B+
Retailer 8
-
£1,219 GBP
View
B
Retailer 9
-
£1,576 GBP
View
B
Retailer 10
-
£1,586 GBP
View
B
Retailer 11
-
£2,112 GBP
View
Most Expensive
NZ Jewellers
0591240c-43d0-4891-a086-958b19801af8 · Sep 28
£2,358 GBP
$3,156 USD
View
Price last confirmed 39 days ago
11 more retailers have this diamond
Prices start from £640 GBPSave up to £1,472 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
1.01ct Heart
£640 GBP