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Round|Lab Grown|IGI

1.02ct E SI2 Round Lab Grown Diamond

EX • E/SI2 • IGI LG474116580

Shape and cutting style on the report: Round brilliant

Certificate IGI LG474116580

Diamond specifications and retailer prices

From £490 GBP
As of November 5, 2026
Save £436 GBP (47%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,597 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.02ct lab-grown round diamond

This 1.02ct lab-grown round sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG474116580 or 474116580. Listed at 11 retailers as of November 4, 2026, with a 89% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.02
Carat
E
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG474116580
Dimensions6.39 × 6.33 × 4.03 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.39 mm6.33 mm1.02 ctE / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG474116580
Side View
Table 57.0%Crown 36.4°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 63.3%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £1,597 GBP|Low: £357 GBP|High: £2,422 GBP|Avg: £914 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 3£357 GBP
Retailer 6£490 GBP
Retailer 11£533 GBP
Retailer 10£548 GBP
Retailer 8£568 GBP
Retailer 7£580 GBP
Retailer 2£896 GBP
Retailer 9£926 GBP
Retailer 5£1,451 GBP
NZ Jewellers£1,597 GBP
Retailer 4£2,393 GBP

42 data points across 11 retailers

11 retailers£490 GBP to £926 GBP

B
Cheapest Retailer
-
£490 GBP
B
Retailer 2
-
£533 GBP
View
B
Retailer 3
-
£548 GBP
View
Final sale: no returns
B
Retailer 4
-
£568 GBP
View
Retailer 5
-
£568 GBP
View
Price last confirmed 21 days ago
B
Retailer 6
-
£580 GBP
View
B
Retailer 7
-
£896 GBP
View
B
Retailer 8
-
£926 GBP
View
Retailer 9
-
£1,451 GBP
View
Price under review
Most Expensive
NZ Jewellers
b95d3139-3132-4847-ac77-fd7d69e18659 · Nov 5
£1,597 GBP
$2,150 USD
View
Price under review
9 more retailers have this diamond
Prices start from £490 GBPSave up to £436 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
1.02ct Round
£490 GBP