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Oval|Natural|GIA

1.00ct J SI1 Oval Natural Diamond

GD • J/SI1 • GIA 6445544770

Certificate GIA 6445544770

Diamond specifications and retailer prices

From £1,393 GBP
As of October 31, 2026
Save £2,620 GBP (65%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £4,013 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6445544770. Listed at 20 retailers as of October 31, 2026, with prices from £1,393 to £4,013, a £2,620 spread on the same certified stone. NZ Jewellers lists it at £4,013. 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
J
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6445544770
Dimensions7.58 × 5.62 × 3.45 mm
L/W Ratio1.35
Top View
7.58 mm5.62 mm1.00 ctJ / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6445544770
Side View
Table 58.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 61.4%

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: Oct 31
Current: £1,951 GBP|Low: £1,390 GBP|High: £3,399 GBP|Avg: £2,049 GBP
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 8£1,393 GBP
Retailer 9£1,405 GBP
Retailer 3£1,712 GBP
Retailer 10£1,763 GBP
Retailer 11£1,771 GBP
Retailer 1£1,951 GBP
Retailer 5£2,031 GBP
Retailer 2£2,151 GBP
Retailer 6£2,343 GBP
Retailer 4£2,383 GBP
Retailer 7£3,354 GBP

38 data points across 11 retailers

20 retailers£1,393 GBP to £4,013 GBP

B+
Cheapest Retailer
-
£1,393 GBP
B+
Retailer 2
-
£1,405 GBP
View
B
Retailer 3
-
£1,683 GBP
View
B
Retailer 4
-
£1,712 GBP
View
B
Retailer 5
-
£1,763 GBP
View
B
Retailer 6
-
£1,771 GBP
View
Final sale: no returns
B
Retailer 7
-
£1,901 GBP
View
B
Retailer 8
-
£1,920 GBP
View
Retailer 9
-
£1,920 GBP
View
Price last confirmed 8 days ago
B
Retailer 10
-
£1,951 GBP
View
B
Retailer 11
-
£2,008 GBP
View
B
Retailer 12
-
£2,025 GBP
View
B
Retailer 13
-
£2,031 GBP
View
Retailer 14
-
£2,151 GBP
View
Price last confirmed 30 days ago
B
Retailer 15
-
£2,215 GBP
View
B
Retailer 16
-
£2,343 GBP
View
B
Retailer 17
-
£2,383 GBP
View
C
Retailer 18
-
£2,922 GBP
View
C
Retailer 19
-
£3,354 GBP
View
Most Expensive
C
NZ Jewellers
1a3f461d-9875-4664-b326-a7e627fe7d75 · Nov 5
£4,013 GBP
$5,372 USD
View
19 more retailers have this diamond
Prices start from £1,393 GBPSave up to £2,620 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
£1,393 GBP