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Round|Lab Grown|IGI

2.45ct H SI1 Round Lab Grown Diamond

ID • H/SI1 • IGI LG487199049

Shape and cutting style on the report: Round brilliant

Certificate IGI LG487199049

Diamond specifications and retailer prices

From £1,022 GBP
$1,370 USD
As of October 30, 2026
Save £6,106 GBP (86%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £8,658 GBP at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 2.45ct lab-grown round diamond

This 2.45ct lab-grown round sits in the two to three carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG487199049 or 487199049. Listed at 12 retailers as of October 29, 2026, with a 597% 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

2.45
Carat
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG487199049
Dimensions8.71 × 8.76 × 5.20 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
8.71 mm8.76 mm2.45 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG487199049
Side View
Table 59.5%Crown 33.9°GirdlePavilion 40.2°Culet: NoneDepth 59.6%

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 30
Current: £1,022 GBP|Low: £1,022 GBP|High: £8,658 GBP|Avg: £4,469 GBP|-44.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Reve Diamonds
October 30, 2026
Retailer 1£1,022 GBP
Retailer 4£2,854 GBP
Retailer 7£3,195 GBP
Retailer 5£3,310 GBP
Retailer 8£3,355 GBP
Retailer 9£3,700 GBP
Retailer 3£4,390 GBP
Retailer 6£5,130 GBP
Retailer 2£7,129 GBP
Reve Diamonds£8,658 GBP

17 data points across 10 retailers

12 retailers£1,022 GBP to £7,129 GBP

A
Cheapest Retailer
-
£1,022 GBP
$1,370 USD
B+
Retailer 2
-
£2,854 GBP
$3,824 USD
View
B+
Retailer 3
-
£2,991 GBP
$4,007 USD
View
B
Retailer 4
-
£3,195 GBP
$4,281 USD
View
Final sale: no returns
Retailer 5
-
£3,310 GBP
$4,435 USD
View
Price last confirmed 17 days ago
B
Retailer 6
-
£3,310 GBP
$4,435 USD
View
B+
Retailer 7
-
£3,355 GBP
$4,495 USD
View
B
Retailer 8
-
£4,136 GBP
$5,542 USD
View
B
Retailer 9
-
£4,390 GBP
$5,882 USD
View
B
Retailer 10
-
£5,130 GBP
$6,873 USD
View
B
Retailer 11
-
£7,129 GBP
View
Most Expensive
Reve Diamonds
0DCD5D497 · Oct 30
£8,658 GBP
$11,601 USD
View
Price under review
11 more retailers have this diamond
Prices start from £1,022 GBPSave up to £6,106 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
2.45ct Round
£1,022 GBP