Heart|Natural|GIA

1.01ct I SI2 Heart Natural Diamond

ID • I/SI2 • GIA 2506819063

Certificate GIA 2506819063

Diamond specifications and retailer prices

From £937 GBP
As of November 6, 2026
Save £1,276 GBP (58%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £3,246 GBP at NZ Jewellers · As of September 21, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2506819063. Listed at 19 retailers as of November 4, 2026, with a 136% 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
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.4°
Pavilion angle42.6°
OriginNatural
Grading LabGIA
CertificateGIA 2506819063
Dimensions5.82 × 6.97 × 4.31 mm
L/W Ratio1.20
Top View
5.82 mm6.97 mm1.01 ctI / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2506819063
Side View
Table 58.0%Crown 36.4°Girdle: MD-VTKPavilion 42.6°Culet: NoneDepth 61.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £3,090 GBP|Low: £927 GBP|High: £3,246 GBP|Avg: £1,463 GBP|-4.8%
NZ Jewellers
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
November 5, 2026
Retailer 8£937 GBP
Retailer 13£1,111 GBP
Retailer 3£1,155 GBP
Retailer 10£1,169 GBP
Retailer 14£1,244 GBP
Retailer 11£1,267 GBP
Retailer 4£1,307 GBP
Retailer 9£1,325 GBP
Retailer 6£1,331 GBP
Retailer 12£1,369 GBP
Retailer 2£1,405 GBP
Retailer 5£1,462 GBP
Retailer 7£2,213 GBP
NZ Jewellers£3,090 GBP

42 data points across 14 retailers

19 retailers£937 GBP to £2,213 GBP

A
Cheapest Retailer
-
£937 GBP
Retailer 2
-
£1,111 GBP
View
Price last confirmed 19 days ago
A
Retailer 3
-
£1,155 GBP
View
B+
Retailer 4
-
£1,169 GBP
View
Final sale: no returns
B+
Retailer 5
-
£1,244 GBP
View
Retailer 6
-
£1,267 GBP
View
Price last confirmed 17 days ago
Retailer 7
-
£1,267 GBP
View
Price last confirmed 21 days ago
Retailer 8
-
£1,307 GBP
View
Price last confirmed 10 days ago
Retailer 9
-
£1,325 GBP
View
Price last confirmed 21 days ago
Retailer 10
-
£1,331 GBP
View
Price last confirmed 47 days ago
Retailer 11
-
£1,331 GBP
View
Price last confirmed 49 days ago
B+
Retailer 12
-
£1,369 GBP
View
B+
Retailer 13
-
£1,405 GBP
View
Retailer 14
-
£1,462 GBP
View
Price last confirmed 16 days ago
Retailer 15
-
£1,535 GBP
View
Price last confirmed 48 days ago
B
Retailer 16
-
£2,213 GBP
View
Retailer 17
-
£3,090 GBP
View
Price last confirmed 16 days ago
Retailer 18
-
£3,246 GBP
View
Price last confirmed 49 days ago
Most Expensive
NZ Jewellers
1b3230bb-a038-4dea-b5f7-1637fda85752 · Sep 21
£3,246 GBP
$4,345 USD
View
Price last confirmed 46 days ago
18 more retailers have this diamond
Prices start from £937 GBPSave up to £1,276 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
£937 GBP