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Heart|Natural|GIA

1.22ct I SI1 Heart Natural Diamond

EX • I/SI1 • GIA 5546305830

Certificate GIA 5546305830

Diamond specifications and retailer prices

From £1,772 GBP
As of November 6, 2026
Save £2,380 GBP (57%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £4,152 GBP at NZ Jewellers · As of November 5, 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 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 5546305830. Listed at 16 retailers as of November 5, 2026, with prices from £1,772 to £4,152, a £2,380 spread on the same certified stone. NZ Jewellers lists it at £4,152. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle38.7°
OriginNatural
Grading LabGIA
CertificateGIA 5546305830
Dimensions6.48 × 7.32 × 4.29 mm
L/W Ratio1.13
Top View
6.48 mm7.32 mm1.22 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5546305830
Side View
Table 58.0%CrownGirdle: MED-VTKPavilion 38.7°Culet: NoneDepth 58.7%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £4,152 GBP|Low: £1,597 GBP|High: £4,152 GBP|Avg: £2,400 GBP|+4.0%
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
November 7, 2026
Retailer 5£1,772 GBP
Retailer 9£1,916 GBP
Retailer 6£1,969 GBP
Retailer 13£1,969 GBP
Retailer 3£1,979 GBP
Retailer 12£2,084 GBP
Retailer 14£2,084 GBP
Retailer 2£2,116 GBP
Retailer 11£2,159 GBP
Retailer 10£2,489 GBP
Retailer 7£2,494 GBP
Retailer 4£2,887 GBP
Retailer 8£3,470 GBP
NZ Jewellers£4,152 GBP

44 data points across 14 retailers

16 retailers£1,772 GBP to £4,152 GBP

B+
Cheapest Retailer
-
£1,772 GBP
Retailer 2
-
£1,807 GBP
View
Price last confirmed 180 days ago
B+
Retailer 3
-
£1,916 GBP
View
Final sale: no returns
B+
Retailer 4
-
£1,969 GBP
View
B+
Retailer 5
-
£1,969 GBP
View
B+
Retailer 6
-
£1,979 GBP
View
B+
Retailer 7
-
£1,984 GBP
View
B+
Retailer 8
-
£2,084 GBP
View
B+
Retailer 9
-
£2,084 GBP
View
B+
Retailer 10
-
£2,116 GBP
View
B
Retailer 11
-
£2,159 GBP
View
B
Retailer 12
-
£2,489 GBP
View
B
Retailer 13
-
£2,494 GBP
View
B
Retailer 14
-
£2,887 GBP
View
B
Retailer 15
-
£3,470 GBP
View
Most Expensive
B
NZ Jewellers
4375de52-b2d4-47c0-a20c-195696aa330a · Nov 5
£4,152 GBP
$5,558 USD
View
15 more retailers have this diamond
Prices start from £1,772 GBPSave up to £2,380 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
£1,772 GBP