CaratHunter
Plans
Heart|Natural|GIA

1.01ct I SI1 Heart Natural Diamond

EX • I/SI1 • GIA 2235989103

Certificate GIA 2235989103

Diamond specifications and retailer prices

From £870 GBP
As of November 6, 2026
Save £1,133 GBP (57%) vs most expensive(unlock to see where)
15 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 2235989103. Listed at 15 retailers as of November 4, 2026, with a 130% 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
OriginNatural
Grading LabGIA
CertificateGIA 2235989103
Dimensions6.15 × 6.97 × 4.03 mm
L/W Ratio1.13
Girdle conditionFaceted
Top View
6.15 mm6.97 mm1.01 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2235989103
Side View
Table 58.0%CrownGirdle: MED-VTKPavilionCulet: 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: Nov 6
Current: £1,017 GBP|Low: £861 GBP|High: £2,173 GBP|Avg: £1,264 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
November 6, 2026
Retailer 2£870 GBP
Retailer 3£959 GBP
Retailer 11£970 GBP
Retailer 4£979 GBP
Retailer 1£1,017 GBP
Retailer 10£1,024 GBP
Retailer 13£1,046 GBP
Retailer 5£1,106 GBP
Retailer 7£1,135 GBP
Retailer 14£1,256 GBP
Retailer 8£1,399 GBP
Retailer 6£1,603 GBP
Retailer 12£1,779 GBP
Retailer 9£2,002 GBP

33 data points across 14 retailers

15 retailers£870 GBP to £2,002 GBP

A
Cheapest Retailer
-
£870 GBP
A
Retailer 2
-
£959 GBP
View
Final sale: no returns
A
Retailer 3
-
£970 GBP
View
A
Retailer 4
-
£979 GBP
View
A
Retailer 5
-
£1,017 GBP
View
A
Retailer 6
-
£1,024 GBP
View
A
Retailer 7
-
£1,046 GBP
View
A
Retailer 8
-
£1,106 GBP
View
A
Retailer 9
-
£1,135 GBP
View
A
Retailer 10
-
£1,256 GBP
View
B+
Retailer 11
-
£1,399 GBP
View
Retailer 12
-
£1,603 GBP
View
Price last confirmed 32 days ago
B+
Retailer 13
-
£1,779 GBP
View
B+
Retailer 14
-
£2,002 GBP
View
Most Expensive
NZ Jewellers
32af83d4-bd8f-4195-b236-ce3616950bf7 · Sep 25
£3,109 GBP
$4,162 USD
View
Price last confirmed 42 days ago
14 more retailers have this diamond
Prices start from £870 GBPSave up to £1,133 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
£870 GBP