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Heart|Natural|GIA

1.01ct I SI2 Heart Natural Diamond

EX • I/SI2 • GIA 1232989046

Certificate GIA 1232989046

Diamond specifications and retailer prices

From £889 GBP
As of November 6, 2026
Save £1,338 GBP (60%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £3,416 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1232989046. Listed at 12 retailers as of November 2, 2026, with a 151% 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1232989046
Dimensions6.04 × 6.97 × 3.99 mm
L/W Ratio1.15
Girdle conditionFaceted
Top View
6.04 mm6.97 mm1.01 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1232989046
Side View
Table 59.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 57.2%

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: £1,801 GBP|Low: £889 GBP|High: £2,483 GBP|Avg: £1,417 GBP|-12.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 4£889 GBP
Retailer 7£919 GBP
Retailer 10£1,063 GBP
Retailer 8£1,068 GBP
Retailer 3£1,121 GBP
Retailer 2£1,123 GBP
Retailer 6£1,168 GBP
Retailer 1£1,801 GBP
Retailer 5£1,920 GBP
Retailer 9£2,227 GBP

39 data points across 10 retailers

12 retailers£889 GBP to £2,227 GBP

A
Cheapest Retailer
-
£889 GBP
A
Retailer 2
-
£919 GBP
View
A
Retailer 3
-
£1,063 GBP
View
Final sale: no returns
A
Retailer 4
-
£1,068 GBP
View
A
Retailer 5
-
£1,121 GBP
View
A
Retailer 6
-
£1,123 GBP
View
A
Retailer 7
-
£1,168 GBP
View
B+
Retailer 8
-
£1,499 GBP
View
B+
Retailer 9
-
£1,801 GBP
View
B+
Retailer 10
-
£1,920 GBP
View
B
Retailer 11
-
£2,227 GBP
View
Most Expensive
NZ Jewellers
c48d2f2c-2ae1-4d9c-acc7-7bec8ed7711e · Sep 25
£3,416 GBP
$4,572 USD
View
Price last confirmed 42 days ago
11 more retailers have this diamond
Prices start from £889 GBPSave up to £1,338 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
£889 GBP