CaratHunter
Plans
Heart|Natural|GIA

1.20ct I SI1 Heart Natural Diamond

VG • I/SI1 • GIA 7566616712

Certificate GIA 7566616712

Diamond specifications and retailer prices

From £1,233 GBP
As of November 6, 2026
Save £2,451 GBP (67%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £3,685 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 I 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 7566616712. Listed at 12 retailers as of November 5, 2026, with prices from £1,233 to £3,685, a £2,451 spread on the same certified stone. NZ Jewellers lists it at £3,685. 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
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7566616712
Dimensions6.49 × 7.32 × 4.20 mm
L/W Ratio1.13
Girdle conditionFaceted
Top View
6.49 mm7.32 mm1.20 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7566616712
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 57.3%

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 6
Current: £3,685 GBP|Low: £1,233 GBP|High: £3,685 GBP|Avg: £1,781 GBP
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 6, 2026
Retailer 7£1,233 GBP
Retailer 5£1,377 GBP
Retailer 8£1,480 GBP
Retailer 3£1,517 GBP
Retailer 2£1,519 GBP
Retailer 9£1,709 GBP
Retailer 10£1,717 GBP
Retailer 12£1,759 GBP
Retailer 4£1,777 GBP
Retailer 11£1,916 GBP
Retailer 6£2,651 GBP
NZ Jewellers£3,685 GBP

7 data points across 12 retailers

12 retailers£1,233 GBP to £3,685 GBP

A
Cheapest Retailer
-
£1,233 GBP
A
Retailer 2
-
£1,377 GBP
View
B+
Retailer 3
-
£1,480 GBP
View
A
Retailer 4
-
£1,517 GBP
View
B+
Retailer 5
-
£1,519 GBP
View
Final sale: no returns
B+
Retailer 6
-
£1,709 GBP
View
B+
Retailer 7
-
£1,717 GBP
View
B+
Retailer 8
-
£1,759 GBP
View
B+
Retailer 9
-
£1,777 GBP
View
B+
Retailer 10
-
£1,916 GBP
View
B
Retailer 11
-
£2,651 GBP
View
Most Expensive
B
NZ Jewellers
b26d166f-2d76-4f71-a572-12068d92f752 · Nov 5
£3,685 GBP
$4,932 USD
View
11 more retailers have this diamond
Prices start from £1,233 GBPSave up to £2,451 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
£1,233 GBP