CaratHunter
Plans
Round|Lab Grown|IGI

1.54ct F SI2 Round Lab Grown Diamond

ID • F/SI2 • IGI LG660459239

Certificate IGI LG660459239

Diamond specifications and retailer prices

From £858 GBP
$1,150 USD
As of November 2, 2026
Save £575 GBP (40%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £1,433 GBP at Jared · As of November 2, 2026
View at Jared

About this 1.54ct lab-grown round diamond

This 1.54ct lab-grown round sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG660459239 or 660459239. Listed at 3 retailers as of November 2, 2026, with prices from £858 to £1,433, a £575 spread on the same certified stone. Jared lists it at £1,433. 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

1.54
Carat
F
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG660459239
Dimensions7.45 × 7.50 mm
L/W Ratio1.01
Top View
7.45 mm7.50 mm1.54 ctF / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG660459239
Side View
Table 57.0%CrownGirdle: MediumPavilionCulet: NoneDepth 60.3%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £1,433 GBP|Low: £858 GBP|High: £1,433 GBP|Avg: £1,076 GBP
Jared
Retailer 2
Retailer 3
July 10, 2026
Retailer 2£858 GBP
Retailer 3£858 GBP
Jared£1,433 GBP

9 data points across 3 retailers

3 retailers£858 GBP to £1,433 GBP

B
Cheapest Retailer
-
£858 GBP
$1,150 USD
B
Retailer 2
-
£858 GBP
$1,150 USD
View
Most Expensive
B
Jared
154541444 · Nov 2
£1,433 GBP
$1,920 USD
View
2 more retailers have this diamond
Prices start from £858 GBPSave up to £575 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.

B
1.54ct Round
£858 GBP