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Heart|Natural|GIA

1.20ct H SI2 Heart Natural Diamond

VG • H/SI2 • GIA 5543146495

Certificate GIA 5543146495

Diamond specifications and retailer prices

From £1,550 GBP
As of November 5, 2026
Save £2,169 GBP (58%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £3,718 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 5543146495. Listed at 7 retailers as of November 5, 2026, with prices from £1,550 to £3,718, a £2,169 spread on the same certified stone. NZ Jewellers lists it at £3,718. 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
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5543146495
Dimensions7.26 × 6.25 × 3.68 mm
L/W Ratio1.16
Top View
7.26 mm6.25 mm1.20 ctH / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5543146495
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 58.8%

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: Nov 5
Current: £3,718 GBP|Low: £1,491 GBP|High: £4,052 GBP|Avg: £2,094 GBP|-8.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 2£1,550 GBP
Retailer 10£1,579 GBP
Retailer 4£1,695 GBP
Retailer 7£1,779 GBP
Retailer 9£1,789 GBP
Retailer 3£1,794 GBP
Retailer 8£1,807 GBP
Retailer 6£1,861 GBP
Retailer 12£1,889 GBP
Retailer 11£2,093 GBP
Retailer 5£3,108 GBP
NZ Jewellers£3,718 GBP

29 data points across 12 retailers

7 retailers£1,550 GBP to £3,718 GBP

A
Cheapest Retailer
-
£1,550 GBP
B+
Retailer 2
-
£1,779 GBP
View
B+
Retailer 3
-
£1,789 GBP
View
Final sale: no returns
B+
Retailer 4
-
£1,807 GBP
View
B+
Retailer 5
-
£1,861 GBP
View
B
Retailer 6
-
£3,108 GBP
View
Most Expensive
B
NZ Jewellers
8eb71638-be4c-4cd3-b369-2c23a699895e · Nov 5
£3,718 GBP
$4,977 USD
View
6 more retailers have this diamond
Prices start from £1,550 GBPSave up to £2,169 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
1.20ct Heart
£1,550 GBP