Heart|Natural|GIA

1.01ct I SI1 Heart Natural Diamond

EX • I/SI1 • GIA 6542427576

Certificate GIA 6542427576

Diamond specifications and retailer prices

From £1,148 GBP
As of November 6, 2026
Save £1,450 GBP (56%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £3,301 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 6542427576. Listed at 20 retailers as of November 4, 2026, with a 126% 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 angle42.2°
OriginNatural
Grading LabGIA
CertificateGIA 6542427576
Dimensions6.02 × 7.02 × 4.12 mm
L/W Ratio1.17
Top View
6.02 mm7.02 mm1.01 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6542427576
Side View
Table 58.0%CrownGirdle: THN-THKPavilion 42.2°Culet: NoneDepth 58.7%

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: £1,320 GBP|Low: £1,138 GBP|High: £2,682 GBP|Avg: £1,581 GBP|-2.2%
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
Retailer 16
November 6, 2026
Retailer 5£1,148 GBP
Retailer 7£1,154 GBP
Retailer 6£1,242 GBP
Retailer 15£1,279 GBP
Retailer 1£1,320 GBP
Retailer 14£1,347 GBP
Retailer 8£1,381 GBP
Retailer 2£1,390 GBP
Retailer 3£1,412 GBP
Retailer 9£1,442 GBP
Retailer 10£1,615 GBP
Retailer 11£1,624 GBP
Retailer 4£1,629 GBP
Retailer 12£1,815 GBP
Retailer 16£2,324 GBP
Retailer 13£2,598 GBP

22 data points across 16 retailers

20 retailers£1,148 GBP to £2,598 GBP

A
Cheapest Retailer
-
£1,148 GBP
A
Retailer 2
-
£1,154 GBP
View
A
Retailer 3
-
£1,242 GBP
View
Final sale: no returns
A
Retailer 4
-
£1,279 GBP
View
A
Retailer 5
-
£1,320 GBP
View
A
Retailer 6
-
£1,347 GBP
View
B+
Retailer 7
-
£1,381 GBP
View
B+
Retailer 8
-
£1,390 GBP
View
B+
Retailer 9
-
£1,412 GBP
View
B+
Retailer 10
-
£1,442 GBP
View
B+
Retailer 11
-
£1,615 GBP
View
B+
Retailer 12
-
£1,624 GBP
View
B+
Retailer 13
-
£1,629 GBP
View
Retailer 14
-
£1,639 GBP
View
Price last confirmed 16 days ago
Retailer 15
-
£1,730 GBP
View
Price last confirmed 44 days ago
B+
Retailer 16
-
£1,815 GBP
View
Retailer 17
-
£1,901 GBP
View
Price last confirmed 32 days ago
B
Retailer 18
-
£2,324 GBP
View
B
Retailer 19
-
£2,598 GBP
View
Most Expensive
NZ Jewellers
4e735225-5bc2-4cc4-bc39-1356fff1dbdf · Sep 25
£3,301 GBP
$4,419 USD
View
Price last confirmed 42 days ago
19 more retailers have this diamond
Prices start from £1,148 GBPSave up to £1,450 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
£1,148 GBP