Heart|Natural|GIA

1.20ct G SI1 Heart Natural Diamond

VG • G/SI1 • GIA 2245072399

Certificate GIA 2245072399

Diamond specifications and retailer prices

From £1,960 GBP
As of November 6, 2026
10 retailers carry this diamond
Most expensive: £3,472 GBP at NZ Jewellers · As of October 18, 2026
View at NZ Jewellers

About this 1.2ct natural heart diamond

This 1.2ct natural heart sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2245072399. Listed at 10 retailers as of November 6, 2026. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.20
Carat
G
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Pavilion angle37.79°
OriginNatural
Grading LabGIA
CertificateGIA 2245072399
Dimensions6.61 × 7.02 × 4.32 mm
L/W Ratio1.06
Key to symbols
Twinning Wisp, Crystal, Feather, Needle
Top View
6.61 mm7.02 mm1.20 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2245072399
Side View
Table 56.0%CrownGirdle: THK-VTKPavilion 37.79°Culet: NoneDepth 61.6%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 6
Current: £3,472 GBP|Low: £1,195 GBP|High: £3,526 GBP|Avg: £2,050 GBP|-1.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 21, 2026
Retailer 5£1,195 GBP
Retailer 9£1,488 GBP
Retailer 2£1,525 GBP
Retailer 7£1,601 GBP
Retailer 12£1,661 GBP
Retailer 6£1,671 GBP
Retailer 11£1,737 GBP
Retailer 4£1,824 GBP
Retailer 10£2,090 GBP
Retailer 3£2,533 GBP
Retailer 8£2,879 GBP
NZ Jewellers£3,472 GBP

13 data points across 12 retailers

10 retailers

Retailer 1
-
£1,195 GBP
Price last confirmed 14 days ago
Retailer 2
-
£1,488 GBP
View
Price last confirmed 19 days ago
Retailer 3
-
£1,525 GBP
View
Price last confirmed 8 days ago
Retailer 4
-
£1,661 GBP
View
Price last confirmed 20 days ago
Retailer 5
-
£1,671 GBP
View
Price last confirmed 19 days ago
Retailer 6
-
£1,737 GBP
View
Price last confirmed 22 days ago
B+
Retailer 7
-
£1,960 GBP
View
Retailer 8
-
£2,533 GBP
View
Price last confirmed 21 days ago
Retailer 9
-
£2,879 GBP
View
Price last confirmed 19 days ago
Most Expensive
NZ Jewellers
ac929f62-6749-4163-97bc-a04a893eea7e · Oct 18
£3,472 GBP
$4,647 USD
View
Price last confirmed 20 days ago
9 more retailers have this diamond
Prices start from £1,960 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+
1.20ct Heart
£1,960 GBP