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Oval|Natural|GIA

1.00ct E SI1 Oval Natural Diamond

EX • E/SI1 • GIA 1543859819

Certificate GIA 1543859819

Diamond specifications and retailer prices

From £1,608 GBP
As of November 6, 2026
Save £1,991 GBP (55%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £4,512 GBP at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1ct natural oval diamond

This 1ct 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 1543859819. Listed at 19 retailers as of November 4, 2026, with a 124% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.00
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1543859819
Dimensions8.19 × 5.48 × 3.43 mm
L/W Ratio1.49
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Needle
Top View
8.19 mm5.48 mm1.00 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1543859819
Side View
Table 59.0%CrownGirdle: ThickPavilionCulet: NoneDepth 62.6%

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: £1,608 GBP|Low: £1,555 GBP|High: £3,652 GBP|Avg: £2,241 GBP|-2.4%
Retailer 1
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 1£1,608 GBP
Retailer 11£1,711 GBP
Retailer 4£1,842 GBP
Retailer 12£1,932 GBP
Retailer 3£2,061 GBP
Retailer 9£2,111 GBP
Retailer 2£2,241 GBP
Retailer 6£2,284 GBP
Retailer 10£2,418 GBP
Retailer 8£2,530 GBP
Retailer 5£2,634 GBP
Retailer 7£3,599 GBP

28 data points across 12 retailers

19 retailers£1,608 GBP to £3,599 GBP

A
Cheapest Retailer
-
£1,608 GBP
A
Retailer 2
-
£1,711 GBP
View
Final sale: no returns
A
Retailer 3
-
£1,842 GBP
View
A
Retailer 4
-
£1,909 GBP
View
A
Retailer 5
-
£1,932 GBP
View
A
Retailer 6
-
£2,061 GBP
View
B+
Retailer 7
-
£2,111 GBP
View
Retailer 8
-
£2,158 GBP
View
Price last confirmed 29 days ago
Retailer 9
-
£2,158 GBP
View
Price last confirmed 29 days ago
B+
Retailer 10
-
£2,264 GBP
View
B+
Retailer 11
-
£2,284 GBP
View
Retailer 12
-
£2,418 GBP
View
Price last confirmed 30 days ago
B+
Retailer 13
-
£2,451 GBP
View
B+
Retailer 14
-
£2,454 GBP
View
Retailer 15
-
£2,490 GBP
View
Price last confirmed 28 days ago
B+
Retailer 16
-
£2,530 GBP
View
B+
Retailer 17
-
£2,634 GBP
View
B
Retailer 18
-
£3,599 GBP
View
Most Expensive
NZ Jewellers
d308cbb3-14a4-45e8-a187-ff789ab61124 · Sep 30
£4,512 GBP
$6,039 USD
View
Price last confirmed 37 days ago
18 more retailers have this diamond
Prices start from £1,608 GBPSave up to £1,991 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
1.00ct Oval
£1,608 GBP