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Heart|Natural|GIA

1.01ct J SI1 Heart Natural Diamond

EX • J/SI1 • GIA 1557167492

Certificate GIA 1557167492

Diamond specifications and retailer prices

From £917 GBP
As of November 6, 2026
Save £1,133 GBP (55%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £3,089 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 1557167492. Listed at 15 retailers as of November 4, 2026, with a 124% 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
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1557167492
Dimensions6.08 × 6.86 × 4.02 mm
L/W Ratio1.13
Girdle conditionFaceted
Top View
6.08 mm6.86 mm1.01 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1557167492
Side View
Table 59.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 58.6%

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: £1,065 GBP|Low: £908 GBP|High: £2,242 GBP|Avg: £1,378 GBP|-2.3%
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
November 6, 2026
Retailer 2£917 GBP
Retailer 4£982 GBP
Retailer 11£1,017 GBP
Retailer 1£1,065 GBP
Retailer 9£1,071 GBP
Retailer 10£1,139 GBP
Retailer 13£1,151 GBP
Retailer 6£1,302 GBP
Retailer 7£1,433 GBP
Retailer 5£1,609 GBP
Retailer 12£1,853 GBP
Retailer 3£1,972 GBP
Retailer 8£2,051 GBP

35 data points across 13 retailers

15 retailers£917 GBP to £2,051 GBP

A
Cheapest Retailer
-
£917 GBP
A
Retailer 2
-
£982 GBP
View
Final sale: no returns
A
Retailer 3
-
£1,017 GBP
View
A
Retailer 4
-
£1,065 GBP
View
A
Retailer 5
-
£1,071 GBP
View
B+
Retailer 6
-
£1,139 GBP
View
A
Retailer 7
-
£1,151 GBP
View
B+
Retailer 8
-
£1,302 GBP
View
B+
Retailer 9
-
£1,433 GBP
View
B+
Retailer 10
-
£1,436 GBP
View
Retailer 11
-
£1,609 GBP
View
Price last confirmed 32 days ago
B
Retailer 12
-
£1,853 GBP
View
B
Retailer 13
-
£1,972 GBP
View
B
Retailer 14
-
£2,051 GBP
View
Most Expensive
NZ Jewellers
75a08eae-0033-43ec-8ceb-f29c06d7667c · Sep 25
£3,089 GBP
$4,134 USD
View
Price last confirmed 42 days ago
14 more retailers have this diamond
Prices start from £917 GBPSave up to £1,133 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
£917 GBP