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Round|Lab Grown|IGI

1.45ct G VS1 Round Lab Grown Diamond

ID • G/VS1 • IGI LG812652789

Shape and cutting style on the report: Round brilliant

Certificate IGI LG812652789

Diamond specifications and retailer prices

From £140 GBP
$187 USD
As of October 30, 2026
Save £413 GBP (75%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £552 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.45ct lab-grown round diamond

This 1.45ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG812652789 or 812652789. Listed at 4 retailers as of October 30, 2026, with prices from £140 to £552, a £413 spread on the same certified stone. Brilliant Earth lists it at £552. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.45
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG812652789
Dimensions7.28 × 7.32 × 4.45 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.28 mm7.32 mm1.45 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG812652789
Side View
Table 57.0%Crown 33.8°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 61.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: £552 GBP|Low: £140 GBP|High: £582 GBP|Avg: £384 GBP|-5.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
October 30, 2026
Retailer 3£140 GBP
Retailer 2£285 GBP
Retailer 4£433 GBP
Brilliant Earth£552 GBP

35 data points across 4 retailers

4 retailers£140 GBP to £552 GBP

A
Cheapest Retailer
-
£140 GBP
$187 USD
Final sale: no returns
A
Retailer 2
-
£285 GBP
View
Retailer 3
-
£433 GBP
$580 USD
View
Price last confirmed 9 days ago
Most Expensive
B+
Brilliant Earth
21302194A · Oct 30
£552 GBP
$740 USD
View
3 more retailers have this diamond
Prices start from £140 GBPSave up to £413 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
1.45ct Round
£140 GBP