Round|Natural|GIA

1.20ct E SI2 Round Natural Diamond

EX • E/SI2 • GIA 6561123592

Certificate GIA 6561123592

Diamond specifications and retailer prices

From £1,626 GBP
As of November 4, 2026
Save £2,879 GBP (64%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £4,505 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.2ct natural round diamond

This 1.2ct natural round sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6561123592. Listed at 17 retailers as of November 4, 2026, with prices from £1,626 to £4,505, a £2,879 spread on the same certified stone. NZ Jewellers lists it at £4,505. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.20
Carat
E
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle34.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6561123592
Dimensions6.85 × 6.91 × 4.15 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity
Top View
6.85 mm6.91 mm1.20 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6561123592
Side View
Table 59.0%Crown 34.5°Girdle: THN-STKPavilion 40.8°Culet: NoneDepth 60.3%

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 4
Current: £4,505 GBP|Low: £1,626 GBP|High: £4,505 GBP|Avg: £2,422 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
Retailer 13
Retailer 14
November 6, 2026
Retailer 12£1,626 GBP
Retailer 9£1,696 GBP
Retailer 5£1,961 GBP
Retailer 6£1,988 GBP
Retailer 10£2,034 GBP
Retailer 3£2,155 GBP
Retailer 13£2,155 GBP
Retailer 14£2,237 GBP
Retailer 2£2,256 GBP
Retailer 7£2,267 GBP
Retailer 4£2,486 GBP
Retailer 8£2,502 GBP
Retailer 11£3,593 GBP
NZ Jewellers£4,505 GBP

35 data points across 14 retailers

17 retailers£1,626 GBP to £4,505 GBP

A
Cheapest Retailer
-
£1,626 GBP
A
Retailer 2
-
£1,696 GBP
View
A
Retailer 3
-
£1,961 GBP
View
A
Retailer 4
-
£1,987 GBP
View
A
Retailer 5
-
£1,988 GBP
View
Final sale: no returns
A
Retailer 6
-
£2,008 GBP
View
A
Retailer 7
-
£2,034 GBP
View
Retailer 8
-
£2,155 GBP
View
Price last confirmed 8 days ago
A
Retailer 9
-
£2,155 GBP
View
A
Retailer 10
-
£2,237 GBP
View
A
Retailer 11
-
£2,256 GBP
View
A
Retailer 12
-
£2,267 GBP
View
A
Retailer 13
-
£2,331 GBP
View
A
Retailer 14
-
£2,486 GBP
View
A
Retailer 15
-
£2,502 GBP
View
B+
Retailer 16
-
£3,593 GBP
View
Most Expensive
B
NZ Jewellers
72fd5542-28ea-40c9-a1e4-65a95aeb1280 · Nov 5
£4,505 GBP
$6,063 USD
View
16 more retailers have this diamond
Prices start from £1,626 GBPSave up to £2,879 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 Round
£1,626 GBP