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Heart|Natural|GIA

1.22ct E SI1 Heart Natural Diamond

EX • E/SI1 • GIA 1399470090

Certificate GIA 1399470090

Diamond specifications and retailer prices

From £2,562 GBP
As of November 4, 2026
Save £2,680 GBP (51%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £5,610 GBP at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.22ct natural heart diamond

This 1.22ct 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 1399470090. Listed at 15 retailers as of November 4, 2026, with a 105% 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

1.22
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1399470090
Dimensions7.05 × 6.29 × 3.96 mm
L/W Ratio1.12
Culet sizeNone
Key to symbols
Twinning Wisp, Indented Natural
Top View
7.05 mm6.29 mm1.22 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1399470090
Side View
Table 59.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 62.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £3,270 GBP|Low: £2,329 GBP|High: £5,319 GBP|Avg: £3,393 GBP|+1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 10£2,562 GBP
Retailer 11£2,886 GBP
Retailer 7£2,926 GBP
Retailer 6£3,056 GBP
Retailer 8£3,220 GBP
Retailer 1£3,270 GBP
Retailer 3£3,331 GBP
Retailer 9£3,434 GBP
Retailer 2£3,561 GBP
Retailer 4£3,931 GBP
Retailer 5£5,242 GBP

27 data points across 11 retailers

15 retailers£2,562 GBP to £5,242 GBP

B+
Cheapest Retailer
-
£2,562 GBP
Final sale: no returns
B+
Retailer 2
-
£2,926 GBP
View
B
Retailer 3
-
£3,056 GBP
View
B
Retailer 4
-
£3,106 GBP
View
Retailer 5
-
£3,220 GBP
View
Price last confirmed 36 days ago
Retailer 6
-
£3,220 GBP
View
Price last confirmed 8 days ago
Retailer 7
-
£3,220 GBP
View
Price last confirmed 29 days ago
B
Retailer 8
-
£3,270 GBP
View
B
Retailer 9
-
£3,331 GBP
View
B
Retailer 10
-
£3,331 GBP
View
Retailer 11
-
£3,434 GBP
View
Price last confirmed 28 days ago
Retailer 12
-
£3,715 GBP
View
Price last confirmed 28 days ago
B
Retailer 13
-
£3,931 GBP
View
B
Retailer 14
-
£5,242 GBP
View
Most Expensive
NZ Jewellers
c9e72514-d3b5-45a0-88f6-ac2bdb3b1fe6 · Sep 30
£5,610 GBP
$7,509 USD
View
Price last confirmed 37 days ago
14 more retailers have this diamond
Prices start from £2,562 GBPSave up to £2,680 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.

B+
1.22ct Heart
£2,562 GBP