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Round|Lab Grown|IGI

1.63ct F SI1 Round Lab Grown Diamond

VG • F/SI1 • IGI LG786625021

Shape and cutting style on the report: Round brilliant

Certificate IGI LG786625021

Diamond specifications and retailer prices

From £159 GBP
$214 USD
As of November 1, 2026
Save £632 GBP (80%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £791 GBP at MOH London · As of November 2, 2026
View at MOH London

About this 1.63ct lab-grown round diamond

This 1.63ct lab-grown round sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG786625021 or 786625021. Listed at 13 retailers as of November 1, 2026, with prices from £159 to £791, a £632 spread on the same certified stone. MOH London lists it at £791. 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

1.63
Carat
F
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle37.7°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG786625021
Dimensions7.64 × 7.57 × 4.51 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
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
Top View
7.64 mm7.57 mm1.63 ctF / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG786625021
Side View
Table 63.0%Crown 37.7°Girdle: THN-MEDPavilion 39.9°Culet: NoneDepth 59.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £791 GBP|Low: £153 GBP|High: £1,140 GBP|Avg: £435 GBP|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 9£159 GBP
Retailer 11£178 GBP
Retailer 4£197 GBP
Retailer 5£329 GBP
Retailer 12£339 GBP
Retailer 3£364 GBP
Retailer 6£365 GBP
Retailer 10£390 GBP
Retailer 2£537 GBP
Retailer 8£578 GBP
Retailer 7£693 GBP
MOH London£791 GBP

34 data points across 12 retailers

13 retailers£159 GBP to £791 GBP

A
Cheapest Retailer
-
£159 GBP
$214 USD
A
Retailer 2
-
£178 GBP
$239 USD
View
Final sale: no returns
Retailer 3
-
£197 GBP
$265 USD
View
Price last confirmed 9 days ago
B+
Retailer 4
-
£329 GBP
€421 EUR
View
B
Retailer 5
-
£339 GBP
$455 USD
View
B+
Retailer 6
-
£364 GBP
$488 USD
View
B+
Retailer 7
-
£365 GBP
View
B+
Retailer 8
-
£390 GBP
$524 USD
View
B
Retailer 9
-
£537 GBP
$721 USD
View
Retailer 10
-
£578 GBP
$775 USD
View
Price last confirmed 12 days ago
Retailer 11
-
£637 GBP
$855 USD
View
Price last confirmed 11 days ago
B
Retailer 12
-
£693 GBP
$930 USD
View
Most Expensive
B
MOH London
LG786625021 · Nov 2
£791 GBP
View
12 more retailers have this diamond
Prices start from £159 GBPSave up to £632 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
1.63ct Round
£159 GBP