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Heart|Natural|GIA

1.01ct I SI1 Heart Natural Diamond

EX • I/SI1 • GIA 3545271333

Certificate GIA 3545271333

Diamond specifications and retailer prices

From £985 GBP
As of November 6, 2026
Save £1,227 GBP (55%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £3,357 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 3545271333. Listed at 19 retailers as of November 4, 2026, with a 125% 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle39.7°
OriginNatural
Grading LabGIA
CertificateGIA 3545271333
Dimensions6.02 × 7.05 × 4.21 mm
L/W Ratio1.17
Top View
6.02 mm7.05 mm1.01 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3545271333
Side View
Table 59.0%CrownGirdle: MED-VTKPavilion 39.7°Culet: NoneDepth 59.7%

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: £1,021 GBP|Low: £975 GBP|High: £2,325 GBP|Avg: £1,361 GBP|-3.2%
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 6£985 GBP
Retailer 1£1,021 GBP
Retailer 14£1,050 GBP
Retailer 3£1,098 GBP
Retailer 9£1,150 GBP
Retailer 2£1,158 GBP
Retailer 5£1,195 GBP
Retailer 10£1,207 GBP
Retailer 7£1,227 GBP
Retailer 8£1,377 GBP
Retailer 13£1,394 GBP
Retailer 11£1,461 GBP
Retailer 12£1,533 GBP
Retailer 4£2,005 GBP
Retailer 15£2,211 GBP

25 data points across 15 retailers

19 retailers£985 GBP to £2,211 GBP

A
Cheapest Retailer
-
£985 GBP
A
Retailer 2
-
£1,021 GBP
View
A
Retailer 3
-
£1,050 GBP
View
Final sale: no returns
A
Retailer 4
-
£1,098 GBP
View
A
Retailer 5
-
£1,150 GBP
View
A
Retailer 6
-
£1,158 GBP
View
A
Retailer 7
-
£1,195 GBP
View
A
Retailer 8
-
£1,207 GBP
View
A
Retailer 9
-
£1,227 GBP
View
B+
Retailer 10
-
£1,377 GBP
View
B+
Retailer 11
-
£1,394 GBP
View
Retailer 12
-
£1,408 GBP
View
Price last confirmed 16 days ago
B+
Retailer 13
-
£1,461 GBP
View
B+
Retailer 14
-
£1,533 GBP
View
B+
Retailer 15
-
£1,548 GBP
View
Retailer 16
-
£1,747 GBP
View
Price last confirmed 32 days ago
B+
Retailer 17
-
£2,005 GBP
View
B
Retailer 18
-
£2,211 GBP
View
Most Expensive
NZ Jewellers
debfa49a-036f-4ba9-89a8-cb9a7fa3aa65 · Sep 25
£3,357 GBP
$4,493 USD
View
Price last confirmed 42 days ago
18 more retailers have this diamond
Prices start from £985 GBPSave up to £1,227 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
£985 GBP