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Round|Lab Grown|IGI

3.04ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • IGI LG623444415

Shape and cutting style on the report: Round brilliant

Certificate IGI LG623444415

Diamond specifications and retailer prices

From £294 GBP
$392 USD
As of October 29, 2026
Save £966 GBP (77%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £1,260 GBP at The Diamond Guys · As of October 30, 2026
View at The Diamond Guys

About this 3.04ct lab-grown round diamond

This 3.04ct lab-grown round sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG623444415 or 623444415. Listed at 6 retailers as of October 29, 2026, with prices from £294 to £1,260, a £966 spread on the same certified stone. The Diamond Guys lists it at £1,260. 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

3.04
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG623444415
Dimensions9.24 × 9.17 × 5.83 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.24 mm9.17 mm3.04 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG623444415
Side View
Table 56.0%Crown 35.6°Girdle: MediumPavilion 41.2°Culet: NoneDepth 63.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: £294 GBP|Low: £218 GBP|High: £1,982 GBP|Avg: £790 GBP|-0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
The Diamond Guys
October 27, 2026
Retailer 1£294 GBP
Retailer 13£334 GBP
Retailer 2£338 GBP
Retailer 8£451 GBP
Retailer 12£451 GBP
Retailer 14£523 GBP
Retailer 10£553 GBP
Retailer 7£578 GBP
Retailer 11£702 GBP
Retailer 3£777 GBP
Retailer 9£909 GBP
Retailer 5£953 GBP
The Diamond Guys£1,260 GBP
Retailer 4£1,750 GBP
Retailer 6£1,982 GBP

9 data points across 15 retailers

6 retailers£294 GBP to £1,260 GBP

A
Cheapest Retailer
-
£294 GBP
$392 USD
Final sale: no returns
Retailer 2
-
£334 GBP
$445 USD
View
Price last confirmed 44 days ago
Retailer 3
-
£451 GBP
View
Price last confirmed 43 days ago
Retailer 4
-
£909 GBP
$1,211 USD
View
Price last confirmed 44 days ago
B+
Retailer 5
-
£953 GBP
CA$1,763 CAD
View
Most Expensive
B
The Diamond Guys
1954434272 · Oct 30
£1,260 GBP
$1,678 USD
View
5 more retailers have this diamond
Prices start from £294 GBPSave up to £966 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.

A
3.04ct Round
£294 GBP