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Round|Lab Grown|IGI

2.50ct I SI1 Round Lab Grown Diamond

ID • I/SI1 • IGI LG476162673

Shape and cutting style on the report: Round brilliant

Certificate IGI LG476162673

Diamond specifications and retailer prices

From £809 GBP
$1,084 USD
As of October 31, 2026
Save £7,154 GBP (90%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £7,963 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 2.5ct lab-grown round diamond

This 2.5ct lab-grown round sits in the two to three carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG476162673 or 476162673. Listed at 15 retailers as of October 29, 2026, with prices from £809 to £7,963, a £7,154 spread on the same certified stone. Do Amore Diamonds lists it at £7,963. 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

2.50
Carat
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG476162673
Dimensions8.77 × 8.72 × 5.33 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.77 mm8.72 mm2.50 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG476162673
Side View
Table 56.5%Crown 33.5°Girdle: MediumPavilion 40.8°Culet: NoneDepth 61.0%

Caratlytics Score

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

Price History

Last verified: Oct 31
Current: £7,963 GBP|Low: £717 GBP|High: £7,963 GBP|Avg: £2,338 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 8£809 GBP
Retailer 3£884 GBP
Retailer 6£1,004 GBP
Retailer 4£1,168 GBP
Retailer 7£1,209 GBP
Retailer 5£1,650 GBP
Retailer 10£1,993 GBP
Retailer 9£2,911 GBP
Retailer 2£3,708 GBP
Do Amore Diamonds£7,963 GBP

15 data points across 10 retailers

15 retailers£809 GBP to £7,963 GBP

A
Cheapest Retailer
-
£809 GBP
$1,084 USD
Retailer 2
-
£884 GBP
$1,185 USD
View
Price last confirmed 10 days ago
A
Retailer 3
-
£896 GBP
$1,201 USD
View
A
Retailer 4
-
£975 GBP
$1,307 USD
View
A
Retailer 5
-
£1,004 GBP
$1,345 USD
View
Final sale: no returns
A
Retailer 6
-
£1,040 GBP
$1,393 USD
View
Retailer 7
-
£1,040 GBP
$1,393 USD
View
Price last confirmed 18 days ago
A
Retailer 8
-
£1,168 GBP
$1,565 USD
View
A
Retailer 9
-
£1,209 GBP
$1,620 USD
View
B+
Retailer 10
-
£1,650 GBP
$2,211 USD
View
B+
Retailer 11
-
£1,993 GBP
$2,670 USD
View
B+
Retailer 12
-
£2,152 GBP
$2,883 USD
View
B
Retailer 13
-
£2,911 GBP
CA$5,418 CAD
View
B
Retailer 14
-
£3,708 GBP
View
Most Expensive
B
Do Amore Diamonds
27-079079A23 · Oct 29
£7,963 GBP
$10,670 USD
View
14 more retailers have this diamond
Prices start from £809 GBPSave up to £7,154 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
2.50ct Round
£809 GBP