CaratHunter
Plans
Heart|Natural|GIA

1.00ct J SI2 Heart Natural Diamond

EX • J/SI2 • GIA 1465016589

Certificate GIA 1465016589

Diamond specifications and retailer prices

From £1,168 GBP
As of November 6, 2026
Save £2,231 GBP (66%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £3,399 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 1465016589. Listed at 17 retailers as of November 5, 2026, with prices from £1,168 to £3,399, a £2,231 spread on the same certified stone. NZ Jewellers lists it at £3,399. 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
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1465016589
Dimensions6.03 × 6.81 × 4.13 mm
L/W Ratio1.13
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Cloud, Feather, Needle, Natural
Top View
6.03 mm6.81 mm1.00 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1465016589
Side View
Table 61.0%CrownGirdlePavilionCulet: NoneDepth 60.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £1,168 GBP|Low: £1,168 GBP|High: £2,883 GBP|Avg: £1,688 GBP|-3.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 1£1,168 GBP
Retailer 6£1,186 GBP
Retailer 9£1,469 GBP
Retailer 8£1,501 GBP
Retailer 7£1,540 GBP
Retailer 2£1,620 GBP
Retailer 3£1,650 GBP
Retailer 4£1,767 GBP
Retailer 5£2,841 GBP

30 data points across 9 retailers

17 retailers£1,168 GBP to £3,399 GBP

B+
Cheapest Retailer
-
£1,168 GBP
B+
Retailer 2
-
£1,186 GBP
View
B
Retailer 3
-
£1,426 GBP
View
B
Retailer 4
-
£1,469 GBP
View
B
Retailer 5
-
£1,501 GBP
View
Final sale: no returns
B
Retailer 6
-
£1,540 GBP
View
B+
Retailer 7
-
£1,620 GBP
View
Retailer 8
-
£1,626 GBP
View
Price last confirmed 8 days ago
B
Retailer 9
-
£1,626 GBP
View
B
Retailer 10
-
£1,650 GBP
View
B
Retailer 11
-
£1,701 GBP
View
B
Retailer 12
-
£1,730 GBP
View
B
Retailer 13
-
£1,767 GBP
View
B
Retailer 14
-
£1,876 GBP
View
B
Retailer 15
-
£2,521 GBP
View
B
Retailer 16
-
£2,841 GBP
View
Most Expensive
C
NZ Jewellers
37a597e9-2891-4aa5-9629-d0b6966984f1 · Nov 5
£3,399 GBP
$4,550 USD
View
16 more retailers have this diamond
Prices start from £1,168 GBPSave up to £2,231 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.

B+
1.00ct Heart
£1,168 GBP