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Heart|Natural|GIA

1.01ct E SI1 Heart Natural Diamond

ID • E/SI1 • GIA 6531922751

Certificate GIA 6531922751

Diamond specifications and retailer prices

From £1,375 GBP
$1,843 USD
As of October 31, 2026
Save £1,713 GBP (55%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £3,950 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 6531922751. Listed at 18 retailers as of October 29, 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
E
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle37.4°
OriginNatural
Grading LabGIA
CertificateGIA 6531922751
Dimensions5.94 × 6.86 × 4.09 mm
L/W Ratio1.15
Top View
5.94 mm6.86 mm1.01 ctE / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6531922751
Side View
Table 58.0%CrownGirdle: STK-VTKPavilion 37.4°Culet: NoneDepth 59.7%

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: Oct 31
Current: £1,375 GBP|Low: £1,375 GBP|High: £3,284 GBP|Avg: £1,943 GBP|-3.9%
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
Retailer 17
October 31, 2026
Retailer 1£1,375 GBP
Retailer 11£1,395 GBP
Retailer 10£1,424 GBP
Retailer 17£1,534 GBP
Retailer 5£1,605 GBP
Retailer 14£1,641 GBP
Retailer 4£1,642 GBP
Retailer 2£1,650 GBP
Retailer 7£1,731 GBP
Retailer 16£1,752 GBP
Retailer 15£1,801 GBP
Retailer 13£1,924 GBP
Retailer 12£2,155 GBP
Retailer 9£2,280 GBP
Retailer 8£2,642 GBP
Retailer 3£2,852 GBP
Retailer 6£3,088 GBP

24 data points across 17 retailers

18 retailers£1,375 GBP to £3,088 GBP

A
Cheapest Retailer
-
£1,375 GBP
$1,843 USD
A
Retailer 2
-
£1,395 GBP
HK$14,600 HKD
View
A
Retailer 3
-
£1,424 GBP
$1,908 USD
View
Final sale: no returns
A
Retailer 4
-
£1,534 GBP
$2,055 USD
View
A
Retailer 5
-
£1,605 GBP
$2,150 USD
View
A
Retailer 6
-
£1,641 GBP
€2,094 EUR
View
A
Retailer 7
-
£1,642 GBP
$2,200 USD
View
A
Retailer 8
-
£1,650 GBP
$2,210 USD
View
B+
Retailer 9
-
£1,731 GBP
$2,320 USD
View
B+
Retailer 10
-
£1,752 GBP
$2,347 USD
View
B+
Retailer 11
-
£1,801 GBP
$2,413 USD
View
B+
Retailer 12
-
£1,924 GBP
View
B+
Retailer 13
-
£2,155 GBP
ZAR 46,649 ZAR
View
Retailer 14
-
£2,280 GBP
A$4,701 AUD
View
Price last confirmed 23 days ago
B+
Retailer 15
-
£2,642 GBP
$3,540 USD
View
Retailer 16
-
£2,852 GBP
$3,822 USD
View
Price last confirmed 7 days ago
B
Retailer 17
-
£3,088 GBP
View
Most Expensive
NZ Jewellers
7c6ed3db-4709-4bac-b184-756fa7e31330 · Sep 25
£3,950 GBP
$5,293 USD
View
Price last confirmed 36 days ago
17 more retailers have this diamond
Prices start from £1,375 GBPSave up to £1,713 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
£1,375 GBP