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Heart|Natural|GIA

1.20ct G SI2 Heart Natural Diamond

VG • G/SI2 • GIA 6555375962

Certificate GIA 6555375962

Diamond specifications and retailer prices

From £1,317 GBP
$1,767 USD
As of November 2, 2026
Save £2,130 GBP (62%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £3,447 GBP at NZ Jewellers · As of October 30, 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 SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6555375962. Listed at 16 retailers as of October 30, 2026, with prices from £1,317 to £3,447, a £2,130 spread on the same certified stone. NZ Jewellers lists it at £3,447. 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
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555375962
Dimensions7.00 × 6.61 × 4.22 mm
L/W Ratio1.06
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Cavity, Indented Natural, Needle, Natural
Top View
7.00 mm6.61 mm1.20 ctG / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6555375962
Side View
Table 60.0%CrownGirdle: THN-VTKPavilionCulet: NDepth 60.2%

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 2
Current: £3,447 GBP|Low: £1,114 GBP|High: £3,572 GBP|Avg: £1,746 GBP|-3.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 2, 2026
Retailer 9£1,199 GBP
Retailer 16£1,317 GBP
Retailer 8£1,366 GBP
Retailer 13£1,368 GBP
Retailer 6£1,379 GBP
Retailer 14£1,493 GBP
Retailer 3£1,494 GBP
Retailer 5£1,494 GBP
Retailer 12£1,529 GBP
Retailer 17£1,539 GBP
Retailer 4£1,563 GBP
Retailer 10£1,630 GBP
Retailer 7£1,724 GBP
Retailer 11£1,810 GBP
Retailer 15£2,059 GBP
Retailer 2£2,889 GBP
NZ Jewellers£3,447 GBP

17 data points across 17 retailers

16 retailers£1,317 GBP to £3,447 GBP

A
Cheapest Retailer
-
£1,317 GBP
$1,767 USD
A
Retailer 2
-
£1,366 GBP
$1,833 USD
View
A
Retailer 3
-
£1,368 GBP
$1,836 USD
View
B+
Retailer 4
-
£1,379 GBP
$1,850 USD
View
Final sale: no returns
B+
Retailer 5
-
£1,493 GBP
$2,004 USD
View
A
Retailer 6
-
£1,494 GBP
$2,005 USD
View
A
Retailer 7
-
£1,494 GBP
$2,005 USD
View
B+
Retailer 8
-
£1,529 GBP
$2,052 USD
View
B+
Retailer 9
-
£1,539 GBP
$2,066 USD
View
A
Retailer 10
-
£1,563 GBP
$2,097 USD
View
B+
Retailer 11
-
£1,630 GBP
View
B+
Retailer 12
-
£1,724 GBP
$2,313 USD
View
B+
Retailer 13
-
£1,810 GBP
View
B+
Retailer 14
-
£2,059 GBP
€2,631 EUR
View
B
Retailer 15
-
£2,889 GBP
View
Most Expensive
B
NZ Jewellers
32947d1b-cb70-4eab-86a8-e4e9ea0ceb93 · Oct 30
£3,447 GBP
$4,626 USD
View
15 more retailers have this diamond
Prices start from £1,317 GBPSave up to £2,130 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
£1,317 GBP