CaratHunter
Plans
Heart|Natural|GIA

1.01ct J SI1 Heart Natural Diamond

EX • J/SI1 • GIA 7558102867

Certificate GIA 7558102867

Diamond specifications and retailer prices

From £851 GBP
As of November 6, 2026
Save £1,040 GBP (55%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £2,905 GBP at NZ Jewellers · As of September 25, 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7558102867. Listed at 16 retailers as of November 4, 2026, with a 122% 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7558102867
Dimensions5.96 × 6.94 × 4.15 mm
L/W Ratio1.16
Girdle conditionFaceted
Top View
5.96 mm6.94 mm1.01 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7558102867
Side View
Table 61.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 59.8%

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: £924 GBP|Low: £841 GBP|High: £2,111 GBP|Avg: £1,217 GBP|-10.2%
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 6, 2026
Retailer 2£851 GBP
Retailer 3£905 GBP
Retailer 1£924 GBP
Retailer 4£949 GBP
Retailer 11£979 GBP
Retailer 10£992 GBP
Retailer 13£1,016 GBP
Retailer 5£1,082 GBP
Retailer 7£1,195 GBP
Retailer 8£1,321 GBP
Retailer 14£1,482 GBP
Retailer 6£1,499 GBP
Retailer 12£1,721 GBP
Retailer 9£1,891 GBP

33 data points across 14 retailers

16 retailers£851 GBP to £1,891 GBP

A
Cheapest Retailer
-
£851 GBP
A
Retailer 2
-
£905 GBP
View
Final sale: no returns
A
Retailer 3
-
£924 GBP
View
A
Retailer 4
-
£949 GBP
View
A
Retailer 5
-
£979 GBP
View
A
Retailer 6
-
£992 GBP
View
A
Retailer 7
-
£1,016 GBP
View
A
Retailer 8
-
£1,082 GBP
View
B+
Retailer 9
-
£1,195 GBP
View
B+
Retailer 10
-
£1,321 GBP
View
B+
Retailer 11
-
£1,363 GBP
View
B
Retailer 12
-
£1,482 GBP
View
Retailer 13
-
£1,499 GBP
View
Price last confirmed 32 days ago
B+
Retailer 14
-
£1,721 GBP
View
B
Retailer 15
-
£1,891 GBP
View
Most Expensive
NZ Jewellers
ef9733a8-6c86-4d8b-bbdd-f0606239010f · Sep 25
£2,905 GBP
$3,888 USD
View
Price last confirmed 42 days ago
15 more retailers have this diamond
Prices start from £851 GBPSave up to £1,040 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
£851 GBP