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Oval|Natural|GIA

1.00ct L SI1 Oval Natural Diamond

ID • L/SI1 • GIA 5191676863

Certificate GIA 5191676863

Diamond specifications and retailer prices

From £1,045 GBP
As of November 6, 2026
Save £802 GBP (43%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £3,303 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 L colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5191676863. Listed at 15 retailers as of November 2, 2026, with a 77% 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
L
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5191676863
Dimensions7.73 × 5.70 × 3.44 mm
L/W Ratio1.36
Top View
7.73 mm5.70 mm1.00 ctL / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateGIA 5191676863
Side View
Table 58.0%CrownGirdle: XTN-THKPavilionCulet: NoneDepth 60.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £1,045 GBP|Low: £1,001 GBP|High: £1,848 GBP|Avg: £1,417 GBP|+4.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 1£1,045 GBP
Retailer 7£1,233 GBP
Retailer 2£1,255 GBP
Retailer 8£1,316 GBP
Retailer 6£1,354 GBP
Retailer 10£1,354 GBP
Retailer 3£1,456 GBP
Retailer 9£1,469 GBP
Retailer 11£1,562 GBP
Retailer 4£1,653 GBP
Retailer 5£1,848 GBP

27 data points across 11 retailers

15 retailers£1,045 GBP to £1,848 GBP

B+
Cheapest Retailer
-
£1,045 GBP
B+
Retailer 2
-
£1,233 GBP
View
B
Retailer 3
-
£1,255 GBP
View
B
Retailer 4
-
£1,316 GBP
View
Retailer 5
-
£1,354 GBP
View
Price last confirmed 8 days ago
Retailer 6
-
£1,354 GBP
View
Price last confirmed 36 days ago
B
Retailer 7
-
£1,397 GBP
View
Retailer 8
-
£1,417 GBP
View
Price last confirmed 38 days ago
B
Retailer 9
-
£1,417 GBP
View
B
Retailer 10
-
£1,456 GBP
View
B
Retailer 11
-
£1,469 GBP
View
Retailer 12
-
£1,562 GBP
View
Price last confirmed 38 days ago
B
Retailer 13
-
£1,653 GBP
View
B
Retailer 14
-
£1,848 GBP
View
Most Expensive
NZ Jewellers
a8d34a0c-ccd2-4182-b8fd-99e494028ec4 · Sep 30
£3,303 GBP
$4,421 USD
View
Price under review
14 more retailers have this diamond
Prices start from £1,045 GBPSave up to £802 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.

B+
1.00ct Oval
£1,045 GBP