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Round|Lab Grown|IGI

1.42ct G IF Round Lab Grown Diamond

ID • G/IF • IGI LG799669485

Shape and cutting style on the report: Round brilliant

Certificate IGI LG799669485

Diamond specifications and retailer prices

From £211 GBP
As of November 1, 2026
Save £1,181 GBP (85%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,393 GBP at Brilliant Earth · As of November 3, 2026
View at Brilliant Earth

About this 1.42ct lab-grown round diamond

This 1.42ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG799669485 or 799669485. Listed at 18 retailers as of November 1, 2026, with prices from £211 to £1,393, a £1,181 spread on the same certified stone. Brilliant Earth lists it at £1,393. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.42
Carat
G
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799669485
Dimensions7.19 × 7.16 × 4.46 mm
L/W Ratio1.00
Girdle conditionFaceted
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 Faint Blue
Top View
7.19 mm7.16 mm1.42 ctG / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799669485
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 62.1%

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: Nov 1
Current: £1,393 GBP|Low: £211 GBP|High: £1,785 GBP|Avg: £654 GBP|-22.0%
Brilliant Earth
Retailer 2
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Retailer 7
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Retailer 11
Retailer 12
Retailer 13
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Retailer 17
November 3, 2026
Retailer 17£211 GBP
Retailer 3£236 GBP
Retailer 7£262 GBP
Retailer 2£424 GBP
Retailer 6£431 GBP
Retailer 15£433 GBP
Retailer 13£451 GBP
Retailer 4£453 GBP
Retailer 12£461 GBP
Retailer 14£637 GBP
Retailer 11£699 GBP
Retailer 5£831 GBP
Retailer 8£879 GBP
Retailer 9£913 GBP
Retailer 10£1,050 GBP
Retailer 16£1,241 GBP
Brilliant Earth£1,393 GBP

35 data points across 17 retailers

18 retailers£211 GBP to £1,393 GBP

A
Cheapest Retailer
-
£211 GBP
A
Retailer 2
-
£236 GBP
View
Final sale: no returns
Retailer 3
-
£255 GBP
View
Price last confirmed 51 days ago
Retailer 4
-
£262 GBP
View
Price last confirmed 11 days ago
A
Retailer 5
-
£424 GBP
View
A
Retailer 6
-
£431 GBP
View
A
Retailer 7
-
£433 GBP
View
A
Retailer 8
-
£451 GBP
View
A
Retailer 9
-
£453 GBP
View
A
Retailer 10
-
£461 GBP
View
Retailer 11
-
£637 GBP
View
Price last confirmed 8 days ago
B+
Retailer 12
-
£699 GBP
View
B
Retailer 13
-
£831 GBP
View
B
Retailer 14
-
£879 GBP
View
B
Retailer 15
-
£932 GBP
View
B
Retailer 16
-
£1,050 GBP
View
B
Retailer 17
-
£1,241 GBP
View
Most Expensive
B
Brilliant Earth
20577388A · Nov 3
£1,393 GBP
$1,880 USD
View
17 more retailers have this diamond
Prices start from £211 GBPSave up to £1,181 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
1.42ct Round
£211 GBP