Oval|Lab Grown|GIA

1.00ct J SI2 Oval Lab Grown Diamond

GD • J/SI2 • GIA 2548926242

Certificate GIA 2548926242

Diamond specifications and retailer prices

From £887 GBP
A$1,828 AUD
As of October 29, 2026
2 retailers carry this diamond
Most expensive: £887 GBP at GemTrove
View at GemTrove

About this 1ct lab-grown oval diamond

This 1ct lab-grown oval sits in the classic one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2548926242. Listed at 2 retailers as of October 29, 2026. 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
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginLab Grown
Grading LabGIA
CertificateGIA 2548926242
Dimensions7.42 × 5.39 × 3.65 mm
L/W Ratio1.38
Top View
7.42 mm5.39 mm1.00 ctJ / SI2
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2548926242
Side View
Table 58.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 67.7%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 29
Current: £887 GBP|Low: £555 GBP|High: £1,190 GBP|Avg: £883 GBP
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
September 9, 2026
Retailer 2£555 GBP
Retailer 4£600 GBP
Retailer 9£602 GBP
Retailer 8£758 GBP
Retailer 10£810 GBP
Retailer 7£852 GBP
GemTrove£887 GBP
Retailer 6£922 GBP
Retailer 5£1,012 GBP
Retailer 3£1,149 GBP
Retailer 11£1,149 GBP

68 data points across 11 retailers

2 retailers

Retailer 1
-
£602 GBP
HK$6,300 HKD
Price last confirmed 56 days ago
Most Expensive
B
GemTrove
GT-N-00928135-98 · Oct 29
£887 GBP
A$1,828 AUD
View
1 more retailer has this diamond

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
£887 GBP