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Round|Lab Grown|IGI

0.91ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG478129939

Certificate IGI LG478129939

Diamond specifications and retailer prices

From £2,861 GBP
$3,801 USD
As of October 28, 2026
1 retailer carries this diamond
Only listing: £2,861 GBP at Taylor and Hart
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Taylor and Hart

About this 0.91ct lab-grown round diamond

This 0.91ct lab-grown round sits in the just-under-one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG478129939 or 478129939. Listed at a single retailer as of October 28, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

0.91
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG478129939
Dimensions6.24 × 6.25 × 3.80 mm
L/W Ratio1.00
Top View
6.24 mm6.25 mm0.91 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG478129939
Side View
Table 57.0%CrownGirdlePavilionCuletDepth 60.8%

Caratlytics Score

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C
Average
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Price History

Last verified: Oct 28
Current: £2,861 GBP|Low: £2,861 GBP|High: £2,861 GBP|Avg: £2,861 GBP
March 25, 2026
Taylor and Hart£2,861 GBP

1 data point across 1 retailer

1 retailer

C
Taylor and Hart
E4JCC91 · Oct 28
£2,861 GBP
$3,801 USD
View

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C
0.91ct Round
£2,861 GBP