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Heart|Natural|GIA

1.01ct I SI1 Heart Natural Diamond

EX • I/SI1 • GIA 1549557446

Certificate GIA 1549557446

Diamond specifications and retailer prices

From £1,071 GBP
As of November 6, 2026
Save £1,334 GBP (55%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £3,402 GBP at NZ Jewellers · As of October 24, 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 1549557446. 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 angle37.5°
OriginNatural
Grading LabGIA
CertificateGIA 1549557446
Dimensions6.17 × 7.00 × 3.96 mm
L/W Ratio1.13
Girdle conditionFaceted
Top View
6.17 mm7.00 mm1.01 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1549557446
Side View
Table 58.0%CrownGirdle: THK-VTKPavilion 37.5°Culet: NoneDepth 56.5%

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: £3,402 GBP|Low: £1,052 GBP|High: £3,402 GBP|Avg: £1,560 GBP
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 6, 2026
Retailer 7£1,071 GBP
Retailer 9£1,073 GBP
Retailer 8£1,151 GBP
Retailer 17£1,189 GBP
Retailer 2£1,235 GBP
Retailer 16£1,252 GBP
Retailer 4£1,300 GBP
Retailer 5£1,307 GBP
Retailer 10£1,307 GBP
Retailer 11£1,335 GBP
Retailer 13£1,467 GBP
Retailer 6£1,508 GBP
Retailer 12£1,528 GBP
Retailer 3£1,647 GBP
Retailer 14£1,680 GBP
Retailer 18£2,164 GBP
Retailer 15£2,405 GBP
NZ Jewellers£3,402 GBP

21 data points across 18 retailers

19 retailers£1,071 GBP to £2,405 GBP

A
Cheapest Retailer
-
£1,071 GBP
A
Retailer 2
-
£1,073 GBP
View
A
Retailer 3
-
£1,151 GBP
View
Final sale: no returns
A
Retailer 4
-
£1,189 GBP
View
A
Retailer 5
-
£1,235 GBP
View
A
Retailer 6
-
£1,252 GBP
View
A
Retailer 7
-
£1,300 GBP
View
A
Retailer 8
-
£1,307 GBP
View
A
Retailer 9
-
£1,307 GBP
View
A
Retailer 10
-
£1,335 GBP
View
B+
Retailer 11
-
£1,467 GBP
View
B+
Retailer 12
-
£1,508 GBP
View
B+
Retailer 13
-
£1,528 GBP
View
B+
Retailer 14
-
£1,647 GBP
View
B+
Retailer 15
-
£1,680 GBP
View
Retailer 16
-
£1,892 GBP
View
Price last confirmed 32 days ago
B
Retailer 17
-
£2,164 GBP
View
B
Retailer 18
-
£2,405 GBP
View
Most Expensive
NZ Jewellers
c4b48a60-9cf3-4c5b-a302-a283ecb8865e · Oct 24
£3,402 GBP
$4,554 USD
View
Price last confirmed 13 days ago
18 more retailers have this diamond
Prices start from £1,071 GBPSave up to £1,334 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
£1,071 GBP