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Heart|Natural|GIA

1.01ct E SI1 Heart Natural Diamond

ID • E/SI1 • GIA 3535937003

Certificate GIA 3535937003

Diamond specifications and retailer prices

From £1,250 GBP
HK$13,000 HKD
As of October 29, 2026
Save £1,617 GBP (56%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £3,637 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3535937003. Listed at 18 retailers as of October 29, 2026, with a 129% 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
E
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle38°
OriginNatural
Grading LabGIA
CertificateGIA 3535937003
Dimensions6.13 × 6.90 × 3.99 mm
L/W Ratio1.13
Top View
6.13 mm6.90 mm1.01 ctE / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3535937003
Side View
Table 60.0%CrownGirdle: STK-VTKPavilion 38°Culet: NoneDepth 57.8%

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: Oct 29
Current: £1,786 GBP|Low: £1,250 GBP|High: £2,996 GBP|Avg: £1,736 GBP|-1.4%
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
Retailer 16
October 30, 2026
Retailer 2£1,250 GBP
Retailer 4£1,361 GBP
Retailer 12£1,372 GBP
Retailer 15£1,403 GBP
Retailer 16£1,500 GBP
Retailer 10£1,506 GBP
Retailer 9£1,506 GBP
Retailer 5£1,516 GBP
Retailer 6£1,562 GBP
Retailer 13£1,597 GBP
Retailer 11£1,783 GBP
Retailer 1£1,786 GBP
Retailer 14£1,964 GBP
Retailer 8£2,078 GBP
Retailer 3£2,601 GBP
Retailer 7£2,867 GBP

26 data points across 16 retailers

18 retailers£1,250 GBP to £2,867 GBP

A
Cheapest Retailer
-
£1,250 GBP
HK$13,000 HKD
A
Retailer 2
-
£1,361 GBP
$1,812 USD
View
Final sale: no returns
A
Retailer 3
-
£1,372 GBP
$1,827 USD
View
A
Retailer 4
-
£1,403 GBP
$1,869 USD
View
A
Retailer 5
-
£1,500 GBP
$1,998 USD
View
A
Retailer 6
-
£1,506 GBP
$2,005 USD
View
A
Retailer 7
-
£1,506 GBP
€1,910 EUR
View
A
Retailer 8
-
£1,516 GBP
$2,019 USD
View
A
Retailer 9
-
£1,562 GBP
$2,080 USD
View
A
Retailer 10
-
£1,597 GBP
$2,127 USD
View
B+
Retailer 11
-
£1,783 GBP
$2,375 USD
View
B+
Retailer 12
-
£1,786 GBP
View
B+
Retailer 13
-
£1,908 GBP
A$3,908 AUD
View
Retailer 14
-
£1,964 GBP
ZAR 42,259 ZAR
View
Price last confirmed 8 days ago
Retailer 15
-
£2,078 GBP
A$4,257 AUD
View
Price last confirmed 23 days ago
B+
Retailer 16
-
£2,601 GBP
$3,464 USD
View
B
Retailer 17
-
£2,867 GBP
View
Most Expensive
NZ Jewellers
040db86d-ec44-46d7-8fda-a0865dcc8d39 · Sep 25
£3,637 GBP
$4,843 USD
View
Price last confirmed 35 days ago
17 more retailers have this diamond
Prices start from £1,250 GBPSave up to £1,617 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
£1,250 GBP