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Round|Lab Grown|IGI

3.03ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG526288070

Shape and cutting style on the report: Round brilliant

Certificate IGI LG526288070

Diamond specifications and retailer prices

From £402 GBP
As of November 4, 2026
Save £2,481 GBP (86%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: £2,883 GBP at Do Amore Diamonds · As of November 4, 2026
View at Do Amore Diamonds

About this 3.03ct lab-grown round diamond

This 3.03ct 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 LG526288070 or 526288070. Listed at 25 retailers as of November 4, 2026, with prices from £402 to £2,883, a £2,481 spread on the same certified stone. Do Amore Diamonds lists it at £2,883. 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

3.03
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG526288070
Dimensions9.45 × 9.40 × 5.60 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
9.45 mm9.40 mm3.03 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG526288070
Side View
Table 59.0%Crown 33.1°Girdle: MediumPavilion 40.6°Culet: NoneDepth 59.4%

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: Nov 4
Current: £728 GBP|Low: £402 GBP|High: £1,877 GBP|Avg: £941 GBP|+2.4%
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
November 6, 2026
Retailer 4£402 GBP
Retailer 3£548 GBP
Retailer 10£550 GBP
Retailer 2£625 GBP
Retailer 11£628 GBP
Retailer 7£684 GBP
Retailer 1£728 GBP
Retailer 8£1,018 GBP
Retailer 5£1,039 GBP
Retailer 9£1,082 GBP
Retailer 12£1,620 GBP
Retailer 13£1,633 GBP
Retailer 6£1,849 GBP

45 data points across 13 retailers

25 retailers£402 GBP to £2,883 GBP

Retailer 1
-
£325 GBP
Price last confirmed 39 days ago
Retailer 2
-
£363 GBP
View
Price last confirmed 44 days ago
Retailer 3
-
£363 GBP
View
Price last confirmed 31 days ago
Retailer 4
-
£397 GBP
View
Price last confirmed 38 days ago
A
Retailer 5
-
£402 GBP
View
Final sale: no returns
Retailer 6
-
£403 GBP
View
Price last confirmed 27 days ago
Retailer 7
-
£403 GBP
View
Price last confirmed 35 days ago
A
Retailer 8
-
£403 GBP
View
A
Retailer 9
-
£548 GBP
View
A
Retailer 10
-
£550 GBP
View
A
Retailer 11
-
£561 GBP
View
A
Retailer 12
-
£625 GBP
View
B+
Retailer 13
-
£628 GBP
View
A
Retailer 14
-
£684 GBP
View
A
Retailer 15
-
£728 GBP
View
B+
Retailer 16
-
£1,018 GBP
View
B+
Retailer 17
-
£1,039 GBP
View
B+
Retailer 18
-
£1,082 GBP
View
Retailer 19
-
£1,429 GBP
View
Price last confirmed 27 days ago
Retailer 20
-
£1,429 GBP
View
Price last confirmed 37 days ago
B
Retailer 21
-
£1,536 GBP
View
B
Retailer 22
-
£1,620 GBP
View
B
Retailer 23
-
£1,633 GBP
View
B
Retailer 24
-
£1,849 GBP
View
Most Expensive
B
Do Amore Diamonds
27-FD06F3F12 · Nov 4
£2,883 GBP
$3,880 USD
View
24 more retailers have this diamond
Prices start from £402 GBPSave up to £2,481 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
3.03ct Round
£402 GBP