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Heart|Natural|GIA

1.01ct I SI1 Heart Natural Diamond

ID • I/SI1 • GIA 6545558944

Certificate GIA 6545558944

Diamond specifications and retailer prices

From £908 GBP
As of November 6, 2026
Save £1,115 GBP (55%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £3,109 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 I 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 6545558944. Listed at 17 retailers as of November 2, 2026, with a 123% 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
I
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Pavilion angle41.3°
OriginNatural
Grading LabGIA
CertificateGIA 6545558944
Dimensions6.09 × 7.18 × 3.95 mm
L/W Ratio1.18
Top View
6.09 mm7.18 mm1.01 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6545558944
Side View
Table 58.0%CrownGirdle: MED-THKPavilion 41.3°Culet: NoneDepth 55.0%

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: £1,061 GBP|Low: £889 GBP|High: £2,130 GBP|Avg: £1,257 GBP|-6.5%
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
Retailer 15
November 6, 2026
Retailer 4£908 GBP
Retailer 5£965 GBP
Retailer 13£1,007 GBP
Retailer 6£1,024 GBP
Retailer 1£1,061 GBP
Retailer 12£1,063 GBP
Retailer 8£1,065 GBP
Retailer 2£1,091 GBP
Retailer 7£1,146 GBP
Retailer 3£1,266 GBP
Retailer 9£1,276 GBP
Retailer 10£1,391 GBP
Retailer 11£1,410 GBP
Retailer 14£1,845 GBP
Retailer 15£2,023 GBP

25 data points across 15 retailers

17 retailers£908 GBP to £2,023 GBP

A
Cheapest Retailer
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£908 GBP
A
Retailer 2
-
£965 GBP
View
Final sale: no returns
A
Retailer 3
-
£1,007 GBP
View
A
Retailer 4
-
£1,024 GBP
View
A
Retailer 5
-
£1,061 GBP
View
A
Retailer 6
-
£1,063 GBP
View
A
Retailer 7
-
£1,065 GBP
View
A
Retailer 8
-
£1,091 GBP
View
A
Retailer 9
-
£1,146 GBP
View
A
Retailer 10
-
£1,266 GBP
View
A
Retailer 11
-
£1,276 GBP
View
B+
Retailer 12
-
£1,391 GBP
View
B+
Retailer 13
-
£1,410 GBP
View
Retailer 14
-
£1,603 GBP
View
Price last confirmed 32 days ago
B+
Retailer 15
-
£1,845 GBP
View
B+
Retailer 16
-
£2,023 GBP
View
Most Expensive
NZ Jewellers
f30ebdb5-4004-45df-bb7d-80997af97c84 · Sep 25
£3,109 GBP
$4,162 USD
View
Price last confirmed 42 days ago
16 more retailers have this diamond
Prices start from £908 GBPSave up to £1,115 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
£908 GBP