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Heart|Natural|GIA

1.20ct H SI2 Heart Natural Diamond

FR • H/SI2 • GIA 1545136997

Certificate GIA 1545136997

Diamond specifications and retailer prices

From £1,505 GBP
As of November 6, 2026
Save £2,258 GBP (60%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £3,763 GBP at NZ Jewellers · As of November 5, 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1545136997. Listed at 10 retailers as of November 5, 2026, with prices from £1,505 to £3,763, a £2,258 spread on the same certified stone. NZ Jewellers lists it at £3,763. 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
H
Colour
SI2
Clarity
Fair
Cut (retailer stated)

Specifications

Cut (retailer stated)Fair
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1545136997
Dimensions7.11 × 6.58 × 3.88 mm
L/W Ratio1.08
Key to symbols
Twinning Wisp, Crystal, Cloud, Feather, Needle
Top View
7.11 mm6.58 mm1.20 ctH / SI2
OriginNatural
CutFair
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1545136997
Side View
Table 60.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 58.9%

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 6
Current: £3,763 GBP|Low: £1,487 GBP|High: £4,011 GBP|Avg: £2,056 GBP|+7.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 10£1,505 GBP
Retailer 3£1,585 GBP
Retailer 9£1,631 GBP
Retailer 7£1,706 GBP
Retailer 2£1,770 GBP
Retailer 6£1,819 GBP
Retailer 8£1,920 GBP
Retailer 5£1,983 GBP
Retailer 4£3,145 GBP
NZ Jewellers£3,763 GBP

37 data points across 10 retailers

10 retailers£1,505 GBP to £3,763 GBP

B+
Cheapest Retailer
-
£1,505 GBP
Final sale: no returns
B+
Retailer 2
-
£1,585 GBP
View
B+
Retailer 3
-
£1,631 GBP
View
B+
Retailer 4
-
£1,706 GBP
View
B+
Retailer 5
-
£1,770 GBP
View
B
Retailer 6
-
£1,819 GBP
View
B
Retailer 7
-
£1,920 GBP
View
B
Retailer 8
-
£1,983 GBP
View
C
Retailer 9
-
£3,145 GBP
View
Most Expensive
C
NZ Jewellers
982e374d-4ea2-4a9c-bcdb-f2bff67349fc · Nov 5
£3,763 GBP
$5,037 USD
View
9 more retailers have this diamond
Prices start from £1,505 GBPSave up to £2,258 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
£1,505 GBP