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Round|Lab Grown|IGI

3.50ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • IGI LG653449874

Shape and cutting style on the report: Round brilliant

Certificate IGI LG653449874

Diamond specifications and retailer prices

From £378 GBP
$504 USD
As of October 29, 2026
Save £2,986 GBP (89%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £3,364 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 3.5ct lab-grown round diamond

This 3.5ct 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 LG653449874 or 653449874. Listed at 10 retailers as of October 29, 2026, with prices from £378 to £3,364, a £2,986 spread on the same certified stone. Do Amore Diamonds lists it at £3,364. 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

3.50
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.6°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG653449874
Dimensions9.73 × 9.67 × 5.97 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.73 mm9.67 mm3.50 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG653449874
Side View
Table 60.0%Crown 32.6°Girdle: Slightly ThickPavilion 41.6°Culet: NoneDepth 61.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £3,364 GBP|Low: £371 GBP|High: £3,394 GBP|Avg: £1,225 GBP|-0.9%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 29, 2026
Retailer 9£378 GBP
Retailer 7£424 GBP
Retailer 13£428 GBP
Retailer 11£729 GBP
Retailer 6£732 GBP
Retailer 3£769 GBP
Retailer 4£831 GBP
Retailer 5£856 GBP
Retailer 8£1,211 GBP
Retailer 10£1,362 GBP
Retailer 12£1,855 GBP
Retailer 2£2,261 GBP
Do Amore Diamonds£3,364 GBP

22 data points across 13 retailers

10 retailers£378 GBP to £3,364 GBP

A
Cheapest Retailer
-
£378 GBP
$504 USD
A
Retailer 2
-
£424 GBP
$564 USD
View
A
Retailer 3
-
£428 GBP
$570 USD
View
Final sale: no returns
B+
Retailer 4
-
£729 GBP
$971 USD
View
A
Retailer 5
-
£732 GBP
$975 USD
View
B+
Retailer 6
-
£1,211 GBP
$1,613 USD
View
B+
Retailer 7
-
£1,362 GBP
$1,814 USD
View
B
Retailer 8
-
£1,855 GBP
$2,470 USD
View
B
Retailer 9
-
£2,261 GBP
View
Most Expensive
B
Do Amore Diamonds
27-5F0F93512 · Oct 29
£3,364 GBP
$4,480 USD
View
9 more retailers have this diamond
Prices start from £378 GBPSave up to £2,986 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
3.50ct Round
£378 GBP