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Oval|Natural|GIA

1.01ct I SI1 Oval Natural Diamond

EX • I/SI1 • GIA 1558080405

Certificate GIA 1558080405

Diamond specifications and retailer prices

From £642 GBP
As of November 6, 2026
Save £1,414 GBP (69%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £2,056 GBP at NZ Jewellers · As of November 2, 2026
View at NZ Jewellers

About this 1.01ct natural oval diamond

This 1.01ct natural oval sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1558080405. Listed at 10 retailers as of November 2, 2026, with prices from £642 to £2,056, a £1,414 spread on the same certified stone. NZ Jewellers lists it at £2,056. 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

1.01
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1558080405
Dimensions7.82 × 5.55 × 3.57 mm
L/W Ratio1.41
Girdle conditionThick
Top View
7.82 mm5.55 mm1.01 ctI / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1558080405
Side View
Table 63.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 64.2%

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: £2,056 GBP|Low: £642 GBP|High: £2,278 GBP|Avg: £1,138 GBP|-9.7%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 2£642 GBP
Retailer 9£808 GBP
Retailer 7£811 GBP
Retailer 8£915 GBP
Retailer 10£943 GBP
Retailer 4£961 GBP
Retailer 6£1,028 GBP
Retailer 3£1,221 GBP
Retailer 11£1,275 GBP
Retailer 5£1,544 GBP
NZ Jewellers£2,056 GBP

38 data points across 11 retailers

10 retailers£642 GBP to £2,056 GBP

A
Cheapest Retailer
-
£642 GBP
A
Retailer 2
-
£808 GBP
View
A
Retailer 3
-
£811 GBP
View
A
Retailer 4
-
£915 GBP
View
A
Retailer 5
-
£943 GBP
View
A
Retailer 6
-
£961 GBP
View
A
Retailer 7
-
£1,028 GBP
View
Retailer 8
-
£1,221 GBP
View
Price last confirmed 33 days ago
A
Retailer 9
-
£1,544 GBP
View
Most Expensive
B+
NZ Jewellers
81f4509f-764c-4576-86b2-e1193fa9be42 · Nov 2
£2,056 GBP
$2,752 USD
View
9 more retailers have this diamond
Prices start from £642 GBPSave up to £1,414 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
1.01ct Oval
£642 GBP