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Oval|Lab Grown

1.03ct G SI1 Oval Lab Grown Diamond

EX • G/SI1 • 403076D0E4

Diamond specifications and retailer prices

From £108 GBP
As of November 5, 2026
Save £323 GBP (75%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £431 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.03ct lab-grown oval diamond

This 1.03ct lab-grown oval sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade. Listed at 4 retailers as of November 5, 2026, with prices from £108 to £431, a £323 spread on the same certified stone. NZ Jewellers lists it at £431. 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

1.03
Carat
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading Lab
Certificate403076D0E4
Dimensions8.09 × 5.61 × 3.54 mm
L/W Ratio1.44
Top View
8.09 mm5.61 mm1.03 ctG / SI1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Certificate403076D0E4
Side View
Table 58.4%CrownGirdlePavilionCuletDepth 63.1%

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 5
Current: £431 GBP|Low: £104 GBP|High: £431 GBP|Avg: £170 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 10, 2026
Retailer 2£108 GBP
Retailer 4£126 GBP
Retailer 3£134 GBP
Retailer 5£134 GBP
NZ Jewellers£431 GBP

6 data points across 5 retailers

4 retailers£108 GBP to £431 GBP

B+
Cheapest Retailer
-
£108 GBP
B+
Retailer 2
-
£126 GBP
View
B+
Retailer 3
-
£134 GBP
View
Most Expensive
B
NZ Jewellers
1fc64f20-41e9-4cb3-9fad-86cd4d22c844 · Nov 5
£431 GBP
$577 USD
View
3 more retailers have this diamond
Prices start from £108 GBPSave up to £323 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+
1.03ct Oval
£108 GBP