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Oval|Natural|GIA

1.00ct I SI2 Oval Natural Diamond

VG • I/SI2 • GIA 1242018463

Certificate GIA 1242018463

Diamond specifications and retailer prices

From £1,555 GBP
As of November 6, 2026
Save £2,417 GBP (61%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £3,972 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural oval diamond

This 1ct natural oval sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1242018463. Listed at 23 retailers as of November 5, 2026, with prices from £1,555 to £3,972, a £2,417 spread on the same certified stone. NZ Jewellers lists it at £3,972. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
I
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.92°
Pavilion angle38.69°
OriginNatural
Grading LabGIA
CertificateGIA 1242018463
Dimensions8.07 × 5.45 × 3.43 mm
L/W Ratio1.48
Culet sizeNone
Top View
8.07 mm5.45 mm1.00 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1242018463
Side View
Table 59.0%Crown 39.92°Girdle: STK-VTKPavilion 38.69°Culet: NoneDepth 62.9%

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: £3,972 GBP|Low: £1,363 GBP|High: £3,972 GBP|Avg: £1,964 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
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Retailer 8
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Retailer 11
Retailer 12
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Retailer 22
Retailer 23
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Retailer 25
November 6, 2026
Retailer 15£1,363 GBP
Retailer 11£1,555 GBP
Retailer 22£1,595 GBP
Retailer 8£1,624 GBP
Retailer 10£1,660 GBP
Retailer 14£1,721 GBP
Retailer 25£1,721 GBP
Retailer 16£1,750 GBP
Retailer 24£1,758 GBP
Retailer 17£1,792 GBP
Retailer 4£1,801 GBP
Retailer 12£1,863 GBP
Retailer 2£1,868 GBP
Retailer 7£1,879 GBP
Retailer 5£1,980 GBP
Retailer 6£1,980 GBP
Retailer 9£1,986 GBP
Retailer 13£1,996 GBP
Retailer 19£2,010 GBP
Retailer 3£2,011 GBP
Retailer 23£2,047 GBP
Retailer 18£2,279 GBP
Retailer 21£2,371 GBP
Retailer 20£3,319 GBP
NZ Jewellers£3,972 GBP

34 data points across 25 retailers

23 retailers£1,555 GBP to £3,972 GBP

Retailer 1
-
£1,519 GBP
Price last confirmed 32 days ago
B+
Retailer 2
-
£1,555 GBP
View
Retailer 3
-
£1,595 GBP
View
Price last confirmed 9 days ago
B+
Retailer 4
-
£1,624 GBP
View
Retailer 5
-
£1,659 GBP
View
Price last confirmed 31 days ago
B+
Retailer 6
-
£1,660 GBP
View
Retailer 7
-
£1,721 GBP
View
Price last confirmed 8 days ago
B+
Retailer 8
-
£1,721 GBP
View
B+
Retailer 9
-
£1,758 GBP
View
B+
Retailer 10
-
£1,801 GBP
View
B+
Retailer 11
-
£1,863 GBP
View
B+
Retailer 12
-
£1,868 GBP
View
B+
Retailer 13
-
£1,879 GBP
View
B
Retailer 14
-
£1,980 GBP
View
B
Retailer 15
-
£1,980 GBP
View
B
Retailer 16
-
£1,986 GBP
View
B
Retailer 17
-
£1,996 GBP
View
B+
Retailer 18
-
£2,010 GBP
View
B
Retailer 19
-
£2,011 GBP
View
B
Retailer 20
-
£2,047 GBP
View
B
Retailer 21
-
£2,371 GBP
View
B
Retailer 22
-
£3,319 GBP
View
Most Expensive
C
NZ Jewellers
082a1df8-21e2-47de-9c31-094be1b62545 · Nov 5
£3,972 GBP
$5,316 USD
View
22 more retailers have this diamond
Prices start from £1,555 GBPSave up to £2,417 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
£1,555 GBP