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Round|Lab Grown|IGI

0.91ct F SI1 Round Lab Grown Diamond

VG • F/SI1 • IGI LG758534985

Shape and cutting style on the report: Round brilliant

Certificate IGI LG758534985

Diamond specifications and retailer prices

From £196 GBP
$263 USD
As of November 1, 2026
Save £166 GBP (46%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £1,066 GBP at MOH London · As of October 15, 2026
View at MOH London

About this 0.91ct lab-grown round diamond

This 0.91ct lab-grown round sits in the just-under-one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG758534985 or 758534985. Listed at 7 retailers as of November 1, 2026, with a 85% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.91
Carat
F
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle36.5°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG758534985
Dimensions6.13 × 6.09 × 3.92 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
6.13 mm6.09 mm0.91 ctF / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG758534985
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 41.5°Culet: NoneDepth 64.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £1,066 GBP|Low: £194 GBP|High: £1,068 GBP|Avg: £360 GBP|+1.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 6£196 GBP
Retailer 2£214 GBP
Retailer 3£223 GBP
Retailer 7£237 GBP
Retailer 4£291 GBP
Retailer 5£363 GBP
MOH London£1,066 GBP

34 data points across 7 retailers

7 retailers£196 GBP to £363 GBP

A
Cheapest Retailer
-
£196 GBP
$263 USD
A
Retailer 2
-
£214 GBP
View
B+
Retailer 3
-
£223 GBP
€284 EUR
View
B+
Retailer 4
-
£237 GBP
$317 USD
View
B+
Retailer 5
-
£291 GBP
$390 USD
View
B+
Retailer 6
-
£363 GBP
$486 USD
View
Most Expensive
MOH London
LG758534985 · Oct 15
£1,066 GBP
View
Price last confirmed 18 days ago
6 more retailers have this diamond
Prices start from £196 GBPSave up to £166 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
0.91ct Round
£196 GBP