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Heart|Natural|GIA

1.00ct J SI2 Heart Natural Diamond

EX • J/SI2 • GIA 6385355078

Certificate GIA 6385355078

Diamond specifications and retailer prices

From £1,121 GBP
As of November 6, 2026
Save £2,144 GBP (66%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £3,265 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural heart diamond

This 1ct 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 6385355078. Listed at 15 retailers as of November 5, 2026, with prices from £1,121 to £3,265, a £2,144 spread on the same certified stone. NZ Jewellers lists it at £3,265. 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

1.00
Carat
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6385355078
Dimensions5.76 × 7.03 × 3.94 mm
L/W Ratio1.22
Top View
5.76 mm7.03 mm1.00 ctJ / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6385355078
Side View
Table 64.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 56.0%

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: £1,121 GBP|Low: £1,080 GBP|High: £2,770 GBP|Avg: £1,592 GBP|-2.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 1£1,121 GBP
Retailer 5£1,138 GBP
Retailer 7£1,422 GBP
Retailer 6£1,442 GBP
Retailer 2£1,582 GBP
Retailer 8£1,634 GBP
Retailer 3£1,697 GBP
Retailer 4£2,728 GBP

46 data points across 8 retailers

15 retailers£1,121 GBP to £3,265 GBP

A
Cheapest Retailer
-
£1,121 GBP
B+
Retailer 2
-
£1,138 GBP
View
B+
Retailer 3
-
£1,369 GBP
View
B
Retailer 4
-
£1,422 GBP
View
B
Retailer 5
-
£1,442 GBP
View
Final sale: no returns
Retailer 6
-
£1,561 GBP
View
Price last confirmed 8 days ago
B
Retailer 7
-
£1,561 GBP
View
B
Retailer 8
-
£1,582 GBP
View
B
Retailer 9
-
£1,634 GBP
View
B
Retailer 10
-
£1,665 GBP
View
B
Retailer 11
-
£1,697 GBP
View
B
Retailer 12
-
£1,802 GBP
View
B
Retailer 13
-
£2,521 GBP
View
B
Retailer 14
-
£2,728 GBP
View
Most Expensive
C
NZ Jewellers
e7caf98a-28b0-424e-85f8-296f2e3f6d1c · Nov 5
£3,265 GBP
$4,370 USD
View
14 more retailers have this diamond
Prices start from £1,121 GBPSave up to £2,144 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
1.00ct Heart
£1,121 GBP