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Oval|Natural|GIA

1.20ct E SI1 Oval Natural Diamond

ID • E/SI1 • GIA 1515903208

Certificate GIA 1515903208

Diamond specifications and retailer prices

From £2,503 GBP
As of November 1, 2026
Save £3,127 GBP (56%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £5,630 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.2ct natural oval diamond

This 1.2ct natural oval sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1515903208. Listed at 19 retailers as of November 1, 2026, with prices from £2,503 to £5,630, a £3,127 spread on the same certified stone. NZ Jewellers lists it at £5,630. 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
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1515903208
Dimensions8.40 × 5.95 × 3.74 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud, Needle, Knot, Indented Natural
Top View
8.40 mm5.95 mm1.20 ctE / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1515903208
Side View
Table 62.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 62.9%

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 1
Current: £5,630 GBP|Low: £2,503 GBP|High: £5,799 GBP|Avg: £3,587 GBP|-2.9%
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£2,503 GBP
Retailer 4£2,628 GBP
Retailer 7£2,702 GBP
Retailer 13£2,794 GBP
Retailer 17£2,922 GBP
Retailer 3£2,928 GBP
Retailer 14£2,928 GBP
Retailer 5£2,966 GBP
Retailer 9£3,015 GBP
Retailer 2£3,135 GBP
Retailer 10£3,254 GBP
Retailer 6£3,378 GBP
Retailer 15£3,656 GBP
Retailer 11£3,942 GBP
Retailer 12£5,133 GBP
Retailer 8£5,322 GBP
NZ Jewellers£5,630 GBP

26 data points across 17 retailers

19 retailers£2,503 GBP to £5,630 GBP

A
Cheapest Retailer
-
£2,503 GBP
A
Retailer 2
-
£2,628 GBP
View
A
Retailer 3
-
£2,702 GBP
View
Final sale: no returns
A
Retailer 4
-
£2,794 GBP
View
B+
Retailer 5
-
£2,922 GBP
View
B+
Retailer 6
-
£2,928 GBP
View
B+
Retailer 7
-
£2,928 GBP
View
B+
Retailer 8
-
£2,966 GBP
View
Retailer 9
-
£3,015 GBP
View
Price last confirmed 12 days ago
B+
Retailer 10
-
£3,109 GBP
View
B+
Retailer 11
-
£3,135 GBP
View
B+
Retailer 12
-
£3,254 GBP
View
B+
Retailer 13
-
£3,378 GBP
View
Retailer 14
-
£3,565 GBP
View
Price last confirmed 28 days ago
B+
Retailer 15
-
£3,656 GBP
View
B+
Retailer 16
-
£3,942 GBP
View
B
Retailer 17
-
£5,133 GBP
View
Retailer 18
-
£5,322 GBP
View
Price last confirmed 9 days ago
Most Expensive
B
NZ Jewellers
5d276a46-e29b-4ca2-98d0-e2024232f331 · Nov 5
£5,630 GBP
$7,536 USD
View
18 more retailers have this diamond
Prices start from £2,503 GBPSave up to £3,127 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 Oval
£2,503 GBP