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Heart|Natural|GIA

1.01ct J SI2 Heart Natural Diamond

EX • J/SI2 • GIA 1429734359

Certificate GIA 1429734359

Diamond specifications and retailer prices

From £855 GBP
As of November 6, 2026
Save £2,087 GBP (71%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £2,943 GBP at NZ Jewellers · As of November 5, 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 1429734359. Listed at 15 retailers as of November 5, 2026, with prices from £855 to £2,943, a £2,087 spread on the same certified stone. NZ Jewellers lists it at £2,943. 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
SymmetryGood
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1429734359
Dimensions5.79 × 6.88 × 3.84 mm
L/W Ratio1.19
Culet sizeNone
Key to symbols
Feather, Twinning Wisp, Crystal, Needle, Natural
Top View
5.79 mm6.88 mm1.01 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryGood
FluorescenceMedium
CertificateGIA 1429734359
Side View
Table 62.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 55.9%

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: £855 GBP|Low: £821 GBP|High: £2,139 GBP|Avg: £1,224 GBP|-3.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 1£855 GBP
Retailer 8£870 GBP
Retailer 5£1,113 GBP
Retailer 6£1,118 GBP
Retailer 9£1,158 GBP
Retailer 2£1,215 GBP
Retailer 7£1,263 GBP
Retailer 3£1,338 GBP
Retailer 4£2,108 GBP

44 data points across 9 retailers

15 retailers£855 GBP to £2,943 GBP

A
Cheapest Retailer
-
£855 GBP
A
Retailer 2
-
£870 GBP
View
B+
Retailer 3
-
£1,113 GBP
View
Final sale: no returns
B+
Retailer 4
-
£1,118 GBP
View
B+
Retailer 5
-
£1,158 GBP
View
Retailer 6
-
£1,207 GBP
View
Price last confirmed 8 days ago
B+
Retailer 7
-
£1,207 GBP
View
B+
Retailer 8
-
£1,215 GBP
View
B+
Retailer 9
-
£1,263 GBP
View
B+
Retailer 10
-
£1,322 GBP
View
B+
Retailer 11
-
£1,338 GBP
View
B
Retailer 12
-
£1,392 GBP
View
B
Retailer 13
-
£2,108 GBP
View
B
Retailer 14
-
£2,547 GBP
View
Most Expensive
C
NZ Jewellers
84eedd2a-7fd1-4ed1-b9a8-8e66c33cbfac · Nov 5
£2,943 GBP
$3,939 USD
View
14 more retailers have this diamond
Prices start from £855 GBPSave up to £2,087 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
£855 GBP