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Round|Natural|GIA

1.20ct E SI2 Round Natural Diamond

EX • E/SI2 • GIA 1519135113

Certificate GIA 1519135113

Diamond specifications and retailer prices

From £2,338 GBP
As of November 5, 2026
Save £2,875 GBP (55%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £5,214 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 1519135113. Listed at 19 retailers as of November 5, 2026, with prices from £2,338 to £5,214, a £2,875 spread on the same certified stone. NZ Jewellers lists it at £5,214. 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
FluorescenceFaint
Crown angle36°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1519135113
Dimensions6.78 × 6.74 × 4.23 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Culet sizeNone
Top View
6.78 mm6.74 mm1.20 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1519135113
Side View
Table 56.0%Crown 36°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £5,214 GBP|Low: £2,001 GBP|High: £5,214 GBP|Avg: £3,097 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
Retailer 15
Retailer 16
Retailer 17
November 6, 2026
Retailer 16£2,338 GBP
Retailer 13£2,348 GBP
Retailer 4£2,407 GBP
Retailer 5£2,502 GBP
Retailer 8£2,711 GBP
Retailer 9£2,711 GBP
Retailer 17£2,713 GBP
Retailer 15£2,815 GBP
Retailer 2£2,994 GBP
Retailer 6£3,024 GBP
Retailer 14£3,024 GBP
Retailer 10£3,098 GBP
Retailer 7£3,128 GBP
Retailer 11£3,274 GBP
Retailer 3£3,387 GBP
Retailer 12£5,005 GBP
NZ Jewellers£5,214 GBP

40 data points across 17 retailers

19 retailers£2,338 GBP to £5,214 GBP

A
Cheapest Retailer
-
£2,338 GBP
A
Retailer 2
-
£2,348 GBP
View
A
Retailer 3
-
£2,407 GBP
View
A
Retailer 4
-
£2,488 GBP
View
A
Retailer 5
-
£2,502 GBP
View
Final sale: no returns
Retailer 6
-
£2,711 GBP
View
Price last confirmed 8 days ago
B+
Retailer 7
-
£2,711 GBP
View
B+
Retailer 8
-
£2,713 GBP
View
B+
Retailer 9
-
£2,815 GBP
View
B+
Retailer 10
-
£2,994 GBP
View
B+
Retailer 11
-
£3,024 GBP
View
B+
Retailer 12
-
£3,024 GBP
View
B+
Retailer 13
-
£3,098 GBP
View
B+
Retailer 14
-
£3,128 GBP
View
B+
Retailer 15
-
£3,274 GBP
View
Retailer 16
-
£3,387 GBP
View
Price last confirmed 14 days ago
B
Retailer 17
-
£4,020 GBP
View
B
Retailer 18
-
£5,005 GBP
View
Most Expensive
B
NZ Jewellers
104469b4-e5b0-4a20-9683-10f1b98ad42c · Nov 5
£5,214 GBP
$7,017 USD
View
18 more retailers have this diamond
Prices start from £2,338 GBPSave up to £2,875 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
£2,338 GBP